WO2017002224A1 - 補綴物包装ケース、補綴物、包装ケース付補綴物 - Google Patents
補綴物包装ケース、補綴物、包装ケース付補綴物 Download PDFInfo
- Publication number
- WO2017002224A1 WO2017002224A1 PCT/JP2015/068951 JP2015068951W WO2017002224A1 WO 2017002224 A1 WO2017002224 A1 WO 2017002224A1 JP 2015068951 W JP2015068951 W JP 2015068951W WO 2017002224 A1 WO2017002224 A1 WO 2017002224A1
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- WO
- WIPO (PCT)
- Prior art keywords
- packaging case
- prosthesis
- primary
- fixture
- color
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0087—Means for sterile storage or manipulation of dental implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C19/00—Dental auxiliary appliances
- A61C19/02—Protective casings, e.g. boxes for instruments; Bags
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/0095—Packages or dispensers for prostheses or other implants
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/02—Disinfection or sterilisation of materials or objects, in general; Accessories therefor using physical processes
- A61L2/08—Radiation
- A61L2/081—Gamma radiation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2/00—Disinfection or sterilisation of materials or objects, in general; Accessories therefor
- A61L2/26—Accessories
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/082—Cosmetic aspects, e.g. inlays; Determination of the colour
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C2202/00—Packaging for dental appliances
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
- A61C5/77—Methods or devices for making crowns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/28—Bones
- A61F2/2875—Skull or cranium
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F2/00—Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/32—Joints for the hip
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2103/00—Materials or objects being the target of disinfection or sterilisation
- A61L2103/05—Living organisms or biological materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2202/00—Aspects relating to methods or apparatus for disinfecting or sterilising materials or objects
- A61L2202/10—Apparatus features
- A61L2202/18—Aseptic storing means
- A61L2202/182—Rigid packaging means
Definitions
- the present invention relates to a packaging case.
- the present invention relates to a case for housing a fixture for a dental implant that is embedded in a jaw bone in the case of a root defect of a permanent tooth or the like.
- a prosthesis is an artificial object that supplements the form and function of a missing part of the body.
- the prosthesis is a denture, a crown, a bridge, a dental implant, and the like.
- cosmetic surgery it is a silicon bag, a silicone resin plate, etc.
- Prosthetic eyes, prosthetic ears, and artificial limbs are also included in the prosthesis.
- a prosthesis implanted in the body is called a prosthesis, and a prosthesis attached to the surface of the body is called an epithesis.
- a dental implant is inserted into a hole provided in an alveolar bone and fixed when the root of a permanent tooth is lost due to decay or damage.
- This dental implant is composed of a fixture (artificial tooth root) fixed to the alveolar bone and an abutment (abutment) screwed to the fixture.
- An implant crown (artificial dental crown) is attached to the abutment.
- Dental implants (fixtures, abutments) are made of ceramics such as alumina and zirconia, in addition to metals such as titanium and titanium alloys. In order to avoid the risk of metal allergy, it is desirable that the dental implant be made of ceramics.
- Implants are required to be sterilized because they are implanted in the body.
- Implant sterilization includes gas sterilization with ethylene oxide gas and ⁇ -ray sterilization with irradiation of ⁇ rays. Sterilization with ethylene oxide gas takes 2 to 4 hours, and aeration after sterilization takes 8 to 12 hours or more.
- ethylene oxide gas is highly toxic and flammable and requires care. Gas sterilization with ethylene oxide gas has extremely low working efficiency and is difficult to handle. On the other hand, ⁇ -ray sterilization is excellent in that the processing time is short and there is no danger of residual gas.
- Patent Document 1 a technology for whitening by heating dark brown zirconia has been developed. This technique makes it possible to employ ⁇ -ray sterilization even when the implant is made of zirconia.
- the present invention provides a prosthetic packaging case, a prosthesis, and a prosthesis with a packaging case, which are subjected to ⁇ -ray sterilization treatment and heat treatment in a state in which a zirconia prosthesis is accommodated, and can maintain the sterilization state for a long time thereafter.
- the purpose is to provide.
- a first embodiment of a prosthesis packaging case includes a primary packaging case that accommodates a prosthesis, and a secondary packaging case that accommodates the primary packaging case, and the prosthesis and the primary packaging case include
- Each is made of a material containing zirconia
- the secondary packaging case is made of a heat-resistant material
- ⁇ -ray sterilization treatment and heat treatment are performed in a state where the prosthesis is double-wrapped by the primary packaging case and the secondary packaging case. Then, the prosthesis is changed to a color similar to natural bone.
- the approximate color is L * a * b * color system, L * is 60 to 90, and a * is ⁇ 5. -10, b * is -5-10.
- the third embodiment of the prosthesis packaging case according to the present invention is characterized in that, in the first or second embodiment, the heat treatment has a maximum temperature of 100 ° C to 300 ° C.
- the primary packaging case is fitted to a primary bottle body that houses the prosthesis, and the primary bottle body.
- a primary lid body to be joined, and a primary seal body disposed between the primary bottle body and the primary lid body are provided.
- the secondary packaging case includes a secondary bottle housing the primary packaging case, and the secondary A secondary lid body screwed into the bottle body and a secondary seal body disposed between the secondary bottle body and the secondary lid body are provided.
- the sixth embodiment of the prosthesis packaging case according to the present invention is characterized in that, in any of the first to fifth embodiments, the secondary packaging case is made of a thermoplastic resin.
- the seventh embodiment of the prosthesis packaging case according to the present invention is characterized in that, in any one of the first to sixth embodiments, the prosthesis is an implant to be implanted in the body.
- the eighth embodiment of the prosthesis packaging case according to the present invention is the seventh embodiment,
- the prosthesis is a dental implant.
- the ninth embodiment of the prosthesis packaging case according to the present invention is the seventh embodiment,
- the prosthesis is an artificial joint implant.
- the tenth embodiment of the prosthesis packaging case according to the present invention is the seventh embodiment,
- the prosthesis is an artificial bone or a bone prosthetic material.
- An embodiment of the prosthesis according to the present invention is a prosthesis made of a material containing zirconia, which is subjected to ⁇ -ray sterilization treatment and heat treatment and is changed to a color similar to natural bone, and is made of a material containing zirconia
- the primary packaging case and the secondary packaging case made of a heat-resistant material are subjected to ⁇ -ray sterilization treatment and heat treatment in a double-packed state.
- An embodiment of a prosthesis with a packaging case according to the present invention includes a prosthesis, a primary packaging case that accommodates the prosthesis, and a secondary packaging case that accommodates the primary packaging case, the prosthesis and the
- Each of the primary packaging cases is made of a material containing zirconia
- the secondary packaging case is made of a heat-resistant material
- the prosthesis is double packaged by the primary packaging case and the secondary packaging case, Heat treatment is performed, and the prosthesis is changed to a color that approximates natural bone.
- the prosthesis packaging case of the present invention can be subjected to ⁇ -ray sterilization treatment and heat treatment in a state in which a prosthesis containing zirconia is accommodated. And the sterilization state of the prosthesis colored in a color similar to natural bone can be maintained for a long period of time.
- the prosthesis and the packaging case prosthesis of the present invention are colored in a color that approximates natural bone. Since no coloring material is used, there is no adverse effect on the human body.
- the prosthesis and the prosthesis with a packaging case are subjected to ⁇ -ray sterilization and heat treatment in a state of being accommodated in the prosthesis packaging case, and are stored and transported as they are. Therefore, a sterilized state can be maintained over a long period of time.
- the prosthesis packaging case is made of the same material as the prosthesis, no foreign matter adheres to the prosthesis.
- FIG. 6 is a diagram showing the color measurement results (L * a * b * color system chromaticity) of the prostheses S1 to S13. It is a figure which shows the colorimetry result (a wavelength and reflectance) of prosthesis S1-S13.
- FIG. 5 is a view showing prosthetics S1 to S13.
- FIG. 3 is a view showing prosthetics T1 to T13. It is a figure which shows the artificial joint implant 70 which concerns on embodiment of this invention. It is a figure which shows the artificial bone 80 which concerns on embodiment of this invention.
- FIG. 1 is a diagram showing a dental implant 5 according to an embodiment of the present invention.
- a dental implant (prosthesis, implant, prosthesis with a packaging case) 5 is fixed to the alveolar bone 2.
- the dental implant 5 includes a fixture 10 fixed to the alveolar bone 2 and an abutment 8 fitted to the fixture 10.
- a male screw 12 is formed on the outer peripheral surface of the fixture 10. Further, a self-tap 13 is formed on the distal end side of the male screw 12.
- the fixture 10 is fixed to the alveolar bone 2 by screwing a male screw 12 into a hole formed in the alveolar bone 2.
- An implant crown 6 is mounted on the outer peripheral surface of the abutment (prosthesis, implant, prosthesis with packaging case) 8 using an adhesive or the like.
- the implant crown 6 is also called superstructure or artificial dental crown.
- the proximal end side of the implant crown 6 is covered with the gum 4.
- the abutment 8 and the fixture 10 are formed of ceramics mainly composed of zirconia.
- the implant crown (prosthesis, implant, prosthesis with packaging case) 6 may also be formed of zirconia.
- the fixture 10 and the like are subjected to ⁇ -ray sterilization treatment and heat treatment. In particular, since the fixture 10 is embedded in the body (alveolar bone 2), sterilization is essential for preventing infection.
- FIG. 2 is a cross-sectional view showing the packaging case 20 according to the embodiment of the present invention.
- FIG. 3 is a view showing the primary jar 31 of the primary packaging case 30 according to the embodiment of the present invention, and is (a) a plan view, (b) a front view, and (c) a IIIc-IIIc sectional view.
- 4A and 4B are views showing the primary cap 35 of the primary packaging case 30 according to the embodiment of the present invention, which are (a) a front view, (b) a plan view, and (c) a sectional view taken along IVc-IVc.
- FIG. 5 is a view showing the secondary jar 41 of the secondary packaging case 40 according to the embodiment of the present invention, and is (a) a front view and (b) a Vb-Vb sectional view.
- FIG. 6 is a view showing the secondary cap 45 of the secondary packaging case 40 according to the embodiment of the present invention, and is (a) a plan view and (b) a VIb-VIb sectional view.
- the packaging case (prosthesis packaging case) 20 includes a primary packaging case 30 and a secondary packaging case 40 and double-wraps the fixture 10.
- the primary packaging case 30 directly accommodates the fixture 10 and appropriately protects the fixture 10 during transportation and storage while preventing invasion of bacteria.
- the secondary packaging case 40 accommodates the primary packaging case 30 and appropriately protects the fixture 10 during transportation and storage.
- the primary packaging case 30 includes a primary jar 31, a primary cap 35, and a primary O-ring 39, and is connected by fitting the primary cap 35 to the mouth portion 32 of the primary jar 31.
- the primary O-ring (primary seal body) 39 is made of heat-resistant rubber such as silicon rubber and is disposed between the primary jar 31 and the primary cap 35. Thereby, the inside of the primary packaging case 30 is sealed.
- the primary O-ring 39 may be made of fluorine rubber such as Teflon (registered trademark) other than silicon rubber.
- the primary packaging case 30 (primary jar 31 and primary cap 35) is formed of ceramics mainly composed of zirconia. That is, the primary packaging case 30 is formed of the same material as the fixture 10. When the primary packaging case 30 is formed of a material different from that of the fixture 10, impurities (foreign matter: contamination) are adhered to the fixture 10 from the primary packaging case 30. Therefore, the primary packaging case 30 is formed of the same material as the fixture 10, and adhesion of impurities from the primary packaging case 30 to the fixture 10 is avoided. Thereby, the primary packaging case 30 can maintain the sterilized state of the fixture 10 for a long period of time.
- the primary packaging case 30 (primary jar 31 and primary cap 35) is formed of zirconia, a connecting structure other than screwing is required. This is because when the primary jar 31 and the primary cap 35 are screwed together, the screws (screw opening, screw cap) are baked (galling), making it difficult to open. Therefore, in the primary packaging case 30, the primary jar 31 and the primary cap 35 are fitted and connected.
- the primary jar (primary bottle body) 31 is an elongated bottomed cylindrical member, and has a wide mouth portion 32. That is, the primary jar 31 is an elongated wide-mouth bottle.
- a fitting portion 32 a having high roundness is formed on the outer peripheral surface of the mouth portion 32.
- the fitting portion 32 a has a length of about 1 ⁇ 4 of the total length in the longitudinal direction of the primary jar 31.
- the primary cap 35 is fitted to the fitting portion 32a.
- An O-ring groove 32b is formed in a part of the fitting portion 32a along the circumferential direction.
- a primary O-ring 39 is disposed in the O-ring groove 32b.
- the primary jar 31 has a receiving portion 33 having substantially the same shape as the outer shape of the fixture 10.
- the accommodating part 33 is dug from the front-end
- the length of the housing part 33 in the longitudinal direction is substantially the same as the length of the fixture 10 in the longitudinal direction.
- a rotation stopper 33 a that engages with the self-tap 13 of the fixture 10 is formed at the bottom of the housing portion 33. By engaging the self tap 13 and the rotation stopper 33a, the fixture 10 is accommodated in the accommodation portion 33 in a state where the fixture 10 cannot rotate around the axis.
- a grip portion 34 is formed on the bottom end side of the housing portion 33.
- the grip part 34 has a shape with a narrowed center in the longitudinal direction, and slightly increases in diameter toward the bottom end. Thereby, the primary jar 31 can be easily pinched with a finger.
- a size of the fixture 10 is stamped on a part of the grip portion 34.
- the marking “38-10” means that the fixture 10 has a diameter of 3.8 mm and a length of 10 mm.
- a lightening hole 34 a is formed inside the grip portion 34. The lightening hole 34a is dug from the bottom end of the primary jar 31 to the vicinity of the center in the longitudinal direction.
- the primary cap (primary lid) 35 is a short bottomed cylindrical member, and has a cylindrical portion 36 that is fitted into the primary jar 31.
- a fitting portion 36 a having high roundness is formed on the inner peripheral surface of the cylindrical portion 36.
- the fitting portion 36 a has a length of about 1 ⁇ 2 of the total length in the longitudinal direction of the primary cap 35.
- the fitting portion 36 a is fitted to the fitting portion 32 a of the primary jar 31. Further, the fitting portion 36 a comes into close contact with the primary O-ring 39 when the primary cap 35 is fitted to the primary jar 31.
- a grip portion 37 is formed on the bottom end side of the tubular portion 36 of the primary cap 35.
- the grip part 37 has a shape with a narrowed center in the longitudinal direction. Thereby, the primary cap 35 can be easily pinched with a finger.
- a lightening hole 37a is formed inside the grip portion 34. The lightening hole 37 a is dug from the bottom surface of the cylindrical portion 36 toward the bottom end of the primary cap 35.
- the secondary packaging case 40 includes a secondary jar 41, a secondary cap 45, and a secondary O-ring 49, and is connected by screwing the secondary cap 45 into the mouth portion 42 of the secondary jar 41.
- the secondary O-ring (secondary seal body) 49 is made of heat-resistant rubber such as silicon rubber or fluorine rubber, and is disposed between the secondary jar 41 and the secondary cap 45. The The secondary O-ring 49 seals the inside of the secondary packaging case 40.
- the secondary packaging case 40 (secondary jar 41 and secondary cap 45) is formed of a heat resistant material.
- the secondary packaging case 40 is made of a thermoplastic resin such as polyether ether ketone (PEEK).
- PEEK polyether ether ketone
- the secondary packaging case 40 is required to have durability (flame resistance, heat resistance) that is not damaged even when heat treatment is performed. Specifically, the performance which does not damage even if heated to about 200 ° C. is required. Therefore, the secondary packaging case 40 is formed of a heat resistant resin and is subjected to heat treatment in a state where the fixture 10 is accommodated.
- the secondary packaging case 40 is required to have a structure that is not opened with the expansion of the internal air during the heat treatment. This is because the primary jar 31 and the primary cap 35 of the primary packaging case 30 are only fitted together, so that when the internal air is expanded by the heat treatment, the primary packaging case 30 is opened. Therefore, the secondary packaging case 40 employs a structure in which the primary jar 31 and the primary cap 35 cannot move. Specifically, in the secondary packaging case 40, the secondary jar 41 and the secondary cap 45 are screwed together to accommodate the primary packaging case 30 without a gap.
- the secondary jar (secondary bottle) 41 is an elongated bottomed cylindrical member, and has a wide mouth part 42. That is, the secondary jar 41 is an elongated wide-mouth bottle like the primary jar 31.
- an O-ring groove 42a is formed on the distal end side along the circumferential direction.
- a screw part 42b and a relief groove 42c are formed on the outer peripheral surface of the mouth part 42 on the bottom end side of the O-ring groove 42a.
- the secondary cap 45 is screwed into the screw portion 42b.
- the secondary jar 41 has an accommodating portion 43 having substantially the same shape as the outer shape of the primary packaging case 30 at the time of sealing.
- the accommodating part 43 is dug from the front-end
- the length in the longitudinal direction of the accommodating portion 43 is substantially the same as the length in the longitudinal direction of the primary packaging case 30 at the time of sealing.
- a gripping portion 44 is formed on the bottom end side of the secondary jar 41 with respect to the housing portion 33.
- the grip part 34 has a cylindrical shape. Thereby, the secondary jar 41 can be easily pinched with a finger.
- the secondary cap (secondary lid) 45 is a short bottomed cylindrical member, and has a cylindrical portion 46 that is screwed into the secondary jar 41.
- a threaded portion 46 a is formed on the inner peripheral surface of the cylindrical portion 46.
- the screw part 46 a is screwed into the screw part 42 b of the secondary jar 41.
- a tapered hole 46b is formed on the inner peripheral surface of the cylindrical portion 46 on the bottom end side of the screw portion 42b.
- the taper hole 46 b comes into close contact with the secondary O-ring 49 when the secondary cap 45 is screwed into the secondary jar 41.
- a grip portion 47 is formed on the bottom end side of the cylindrical portion 46 of the secondary cap 45.
- the gripping portion 47 has a cylindrical shape, and three chamfers 47a are formed. Thereby, it is possible to easily pinch the secondary cap 45 with a finger.
- Step A The fixture 10 and the packaging case 20 are manufactured through the following process A, respectively.
- First step A1 Formation step
- Zirconia powder (Tosoh Corporation PXA-200 type, etc.) is put into a mold having a cavity having the same shape as the fixture 10 and press-molded. Thereafter, the press-molded product is sintered at a temperature of 1500 ° C. or higher, for example. Thereby, the formed product of the fixture 10 is obtained.
- the primary packaging case 30 is formed through a press sintering process. When the abutment 8 and the implant crown 6 are formed of zirconia, they are similarly formed through press sintering.
- the secondary packaging case 40 is formed by cutting a PEEK raw material.
- step A2 ⁇ -ray sterilization treatment step (dark browning step)
- the fixture 10 is accommodated in the packaging case 20.
- the fixture 10 is accommodated in the primary packaging case 30, and the primary packaging case 30 is accommodated in the secondary packaging case 40.
- the packaging case 20 containing the fixture 10 is sterilized by irradiating with ⁇ rays.
- Gamma rays are irradiated, for example, 25 kGy (25 kSv) or more.
- the ⁇ rays pass through the secondary packaging case 40, the primary packaging case 30 and the fixture 10. Thereby, the fixture 10 and the primary packaging case 30 are dark brown.
- the fixture 10 and the primary packaging case 30 are dark brown not only on the outer surface but also on the inside. Note that the secondary packaging case 40 does not change in appearance, such as discoloration.
- Table 1 is a table showing the color measurement results of the prostheses S1 to S13 formed through the manufacturing process A (A1 to A3) described above.
- FIG. 7 is a diagram showing the color measurement results (L * a * b * color system chromaticity) of the prostheses S1 to S13.
- FIG. 8 is a diagram showing the color measurement results (wavelength and reflectance) of the prostheses S1 to S13.
- FIG. 9 is a diagram showing the prostheses S1 to S13.
- Color system Lab color system (CIE 1976 (L *, a *, b *) color space (CIELAB), JIS Z 8729)
- Spectral colorimeter CM-1000 manufactured by Konica Minolta (formerly Minolta Camera)
- Prosthesis S1 The maximum temperature was set to 100 ° C. in the third step A3.
- Prosthesis S2 The maximum temperature was 110 ° C. in the third step A3.
- Prosthesis S3 The maximum temperature was set to 120 ° C. in the third step A3.
- Prosthesis S4 The maximum temperature was set to 130 ° C. in the third step A3.
- Prosthesis S5 The maximum temperature was 140 ° C. in the third step A3.
- Prosthesis S6 The maximum temperature was set to 150 ° C. in the third step A3.
- Prosthesis S7 The maximum temperature was set to 160 ° C. in the third step A3.
- Prosthesis S8 The maximum temperature was set to 170 ° C. in the third step A3.
- Prosthesis S9 The maximum temperature was set to 180 ° C. in the third step A3.
- Prosthesis S10 The maximum temperature was set to 190 ° C. in the third step A3.
- Prosthesis S11 The maximum temperature was set to 200 ° C. in the third step A3.
- Prosthesis S12 The maximum temperature was set to 250 ° C. in the third step A3.
- Prosthesis S13 The maximum temperature was set to 300 ° C. in the third step A3.
- Comparative example S21 The first step A1 was passed (the second step A2 and the third step A3 were omitted). Comparative example S22: The first step A1 and the second step A2 were performed (the third step A3 was omitted). Comparative Example S23: Conventional artificial tooth (VITA CEREC VITABLOCS Mark II).
- the prostheses S1 to S13 were subjected to heat treatment (third step A3) after the ⁇ -ray sterilization treatment (second step A2), so that the color changed to a color similar to natural bone.
- the maximum temperature is 100 ° C. to 300 ° C.
- L * is 60 to 90
- a * is ⁇ 5 to 10
- b * is ⁇ 5 to 10 in the L * a * b * color system.
- L * is 65 to 89
- a * is -2 to 6
- b * is -1 to 8.
- the prostheses S1 to S13 are whiter than the comparative example S22, which is dark brown, and browner than the comparative example S21, which is pure white. Therefore, the prostheses S1 to S13 were discolored to colors similar to natural bone, as in Comparative Example S23.
- the prostheses S1 to S13 have higher reflectivity than the comparative example S23, but the waveform shape is approximate. Since the prosthesis S1 to S13 has a waveform shape that is similar to that of the comparative example S23, it is recognized that the prosthesis S1 to S13 has been changed to a color that approximates the comparative example S23 (a color that approximates natural bone).
- the prostheses S1 to S13 were colored in a color similar to natural bone (the same color as in Comparative Example S23).
- the maximum temperature in the heat treatment (third step A3) between 100 ° C. and 300 ° C.
- prostheses S1 to S13 having colors similar to the natural teeth of the patient (wearer) were obtained. .
- Step B The fixture 10 and the packaging case 20 can also be manufactured through the following process B, respectively.
- First step B1 Formation step
- the fixture 10 and the primary packaging case 30 are formed through press sintering.
- the PEEK raw material is cut to form the secondary packaging case 40.
- the first step B1 is the same step as the first step A1.
- the fixture 10 is irradiated with laser light to roughen the surface.
- Nd YAG laser or YVO4 laser is used for the laser light.
- a fundamental wave of Nd: YAG laser or YVO4 laser (solid laser: wavelength 1064 nm, fiber laser: 1090 nm) can be used.
- the light diameter (diameter) of the laser light is, for example, 5 to 50 ⁇ m.
- the fixture 10 is discolored (dark browned) by laser light irradiation.
- the fixture 10 is heated to 700 ° C. Heating time, holding time, etc. can be set arbitrarily. As a result, the fixture 10 that has been discolored (dark browned) by irradiation with laser light is whitened. The fixture 10 is whitened not only on the outer surface but also on the inside.
- Step B4 ⁇ -ray sterilization treatment step (dark browning step)
- the fixture 10 and the packaging case 20 are sterilized by irradiating them with ⁇ rays.
- the fourth step B4 is the same step as the second step A2.
- Table 2 is a table showing the color measurement results of the prostheses T1 to T13 formed through the manufacturing process B (B1 to B5) described above.
- FIG. 10 is a diagram showing the color measurement results (L * a * b * color system chromaticity) of the prostheses T1 to T13.
- FIG. 11 is a diagram showing the color measurement results (wavelength and reflectance) of the prostheses T1 to T13.
- FIG. 12 is a diagram showing the prostheses S1 to S13.
- Color system Lab color system (CIE 1976 (L *, a *, b *) color space (CIELAB), JIS Z 8729)
- Spectral colorimeter CM-1000 manufactured by Konica Minolta (formerly Minolta Camera)
- Prosthesis T1 The maximum temperature was set to 100 ° C. in the fifth step B5.
- Prosthesis T2 The maximum temperature was set to 110 ° C. in the fifth step B5.
- Prosthesis T3 The maximum temperature was set to 120 ° C. in the fifth step B5.
- Prosthesis T4 The maximum temperature was set to 130 ° C. in the fifth step B5.
- Prosthesis T5 Maximum temperature was 140 ° C. in the fifth step B5.
- Prosthesis T6 The maximum temperature was set to 150 ° C. in the fifth step B5.
- Prosthesis T7 The maximum temperature was 160 ° C. in the fifth step B5.
- Prosthesis T8 The maximum temperature was set to 170 ° C. in the fifth step B5.
- Prosthesis T9 The maximum temperature was set to 180 ° C. in the fifth step B5.
- Prosthesis T10 The maximum temperature was 190 ° C. in the fifth step B5.
- Prosthesis T11 The maximum temperature was set to 200 ° C. in the fifth step B5.
- Prosthesis T12 The maximum temperature was set to 250 ° C. in the fifth step B5.
- Prosthesis T13 The maximum temperature was set to 300 ° C. in the fifth step B5.
- Comparative Example T21 The first step B1 and the second step B2 were performed (the third step B3 to the fifth step B5 were omitted).
- Comparative Example T22 The first step B1 to the third step B3 were performed (the fourth step B4 and the fifth step B5 were omitted).
- Comparative Example T23 The first step B1 to the fourth step B4 were performed (the fifth step B5 was omitted).
- Comparative Example T24 Conventional artificial tooth (VITA CEREC VITABLOCS Mark II). The same as Comparative Example S23.
- the prostheses T1 to T13 were subjected to heat treatment (fifth step B5) after the ⁇ -ray sterilization treatment (fourth step B4), so that the color changed to a color similar to natural bone.
- the maximum temperature of the heat treatment (fifth step B5) is 100 ° C. to 300 ° C.
- L * is 60 to 90
- a * is ⁇ 5 to 10
- b * is ⁇ 5 to 10 in the L * a * b * color system.
- L * is 65 to 89
- a * is -2 to 6
- b * is -1 to 8.
- the prostheses T1 to T13 are whiter than the comparative examples T21 and T23 which are dark brown, and browner than the comparative example T22 which is pure white. Therefore, the prostheses S1 to S13 were discolored to a color approximate to natural bone, as in Comparative Example T24.
- the prostheses T1 to T13 have a higher reflectance than the comparative example T24, but the waveform shape is approximate. Since the prosthesis T1 to T13 has a waveform shape similar to that of the comparative example T24, it is recognized that the prosthesis T1 to T13 has been changed to a color that approximates the comparative example T24 (a color that approximates natural bone).
- the prostheses T1 to T13 were colored in a color similar to natural bone (the same color as that of Comparative Example T24).
- the maximum temperature in the heat treatment (fifth step B5) between 100 ° C. and 300 ° C., prostheses T1 to T13 having colors similar to the natural teeth of the patient (wearer) were obtained. .
- the packaging case 20 can be subjected to ⁇ -ray sterilization treatment and heat treatment in a state where the fixture 10 made of zirconia is accommodated. And the sterilization state of the fixture 10 colored in the color close
- the primary packaging case 30 is made of the same material as the fixture 10, foreign matter is not attached to the fixture 10 (non-dusting property).
- the primary packaging case 30 is made of ceramics containing zirconia, the risk of metal allergy can be avoided.
- the primary packaging case 30 does not change even when subjected to ⁇ -ray sterilization treatment and heat treatment (radiation resistance, heat resistance), and can accommodate the fixture 10 for a long period of time (durability, stability). ).
- the primary packaging case 30 is connected by fitting the primary jar 31 and the primary cap 35. For this reason, the primary jar 31 and the primary cap 35 are not seized and it is not difficult to open them. That is, the primary packaging case 30 made of zirconia can be smoothly sealed and opened.
- the secondary packaging case 40 In the secondary packaging case 40, the secondary jar 41 and the secondary cap 45 are screwed together and accommodate the primary packaging case 30 without any gap. For this reason, the secondary packaging case 40 can prevent the primary packaging case 30 from being unsealed during the heat treatment.
- the secondary packaging case 40 does not deteriorate even when subjected to ⁇ -ray sterilization treatment and heat treatment (radiation resistance, heat resistance), and can accommodate the fixture 10 for a long period of time (durability and stability). sex).
- the packaging case 20 may accommodate the abutment 8 or the implant crown 6 colored in a color similar to natural bone.
- the fixture 10 is colored in a color that approximates natural bone. Moreover, since the fixture 10 does not use a coloring material, there is no adverse effect on the human body. Similarly, the abutment 8 and the implant crown 6 can be colored in a color similar to natural bone. For this reason, the aesthetics in the oral cavity are not impaired.
- the packaging case 20 is also colored in a color similar to natural bone (the same color as the fixture 10).
- the fixture 10 is subjected to ⁇ -ray sterilization treatment and heat treatment in a state of being accommodated in the packaging case 20. And it is stored and transported as it is. Therefore, the fixture 10 can maintain a sterilized state for a long period of time.
- the primary packaging case 30 is made of the same material as the fixture 10, no foreign matter adheres to the fixture 10. Since metal does not adhere to the fixture 10, the risk of metal allergy can be avoided.
- FIG. 13 is a diagram showing an artificial joint implant 70 according to an embodiment of the present invention.
- the prosthesis of the present invention may be an artificial joint implant 70.
- the artificial joint implant 70 is formed of ceramics containing zirconia.
- the artificial joint implant 70 may be partially formed of zirconia.
- An artificial joint implant (prosthesis, implant, prosthesis with packaging case) 70 is embedded in a pelvis 71 and a femur 72 of a hip joint. Also in the manufacturing process of the artificial joint implant 70, the heat treatment (third step A3, fifth step B5) is performed after the ⁇ -ray sterilization treatment (second step A2, fourth step B4).
- FIG. 14 is a diagram showing an artificial bone 80 according to the embodiment of the present invention.
- the prosthesis of the present invention may be an artificial bone 80 (artificial bone).
- An artificial bone (prosthesis, implant, prosthesis with a packaging case) 80 is a skull plate that is disposed in a defective portion of the skull 81.
- the artificial bone 80 is formed of ceramics containing zirconia. The case where a part of artificial bone 80 is formed with zirconia may be sufficient.
- the heat treatment (third step A3, fifth step B5) is performed after the ⁇ -ray sterilization treatment (second step A2, fourth step B4).
- the artificial joint implant 70 and the artificial bone 80 are colored in a color similar to natural bone without using a coloring material. For this reason, aesthetics are not impaired. Further, since no coloring material is used, there is no adverse effect on the human body.
- the artificial joint implant 70 and the artificial bone 80 are double-packaged in a packaging case (not shown) having the same configuration as the packaging case 20.
- This packaging case has an accommodating portion having substantially the same shape as that of the artificial joint implant 70 and the artificial bone 80.
- the packaging case is subjected to ⁇ -ray sterilization treatment and heat treatment in a state where the artificial joint implant 70 and the like are accommodated. Accordingly, the artificial joint implant 70 and the like colored in a color similar to natural bone can maintain a sterilized state for a long period of time.
- the prosthesis and the prosthesis packaging case (prosthesis with packaging case) of the present invention are formed of a biocompatible ceramic material mainly composed of zirconia (zirconium oxide).
- the prosthesis and the prosthesis packaging case of the present invention should contain 50% or more of zirconia in the volume ratio.
- the material of the prosthesis and the prosthesis packaging case (prosthesis with a packaging case) of the present invention may be a zirconia composite material (a combination of zirconia and another ceramic material).
- Other ceramic materials are alumina (aluminum oxide), yttrium oxide, hafnium oxide, silicon oxide, magnesium oxide, cerium oxide, and the like.
- the material of the prosthesis and the prosthesis packaging case (a prosthesis with a packaging case) of the present invention may be a combination of zirconia and a metal or alloy.
- the metal or alloy is copper, titanium, titanium alloy, or the like.
- the material of the prosthesis and the prosthesis packaging case (a prosthesis with a packaging case) of the present invention may be a combination of zirconia and carbon, resin, glass, or the like.
- the heat treatment (third process A3, fifth process) Step B5) is performed.
- the forming step first step A1, B1)
- any manufacturing method / apparatus can be used.
- the surface treatment step second step B2
- the high-temperature heat treatment step third step B3
- the artificial joint implant of the present invention is not limited to the hip joint, and may be a case where the artificial joint implant is embedded in a shoulder joint, a knee joint, an elbow joint, a wrist, an ankle, a temporomandibular joint, or the like.
- the artificial bone of the present invention is not limited to the case where it is placed in a bone defect part, but may be a case where it is used to fix a broken bone.
- the artificial bone may have a shape such as a wood screw, a bolt, a nail, a scissors, or a beam. Not only when it has a specific shape like an artificial bone, but also when it does not have a specific shape like a bone prosthetic material (not shown).
- the prosthesis of the present invention is not limited to being fixed to bone. What is necessary is just to be embedded in a body, and it may be arrange
- the fixture 10 may be one that does not have a threading function (self-tap 13) (normal type).
- the accommodation part 33 of the primary jar 31 may not have the rotation stopper 33a.
- Dental implant prosthesis, implant, prosthesis with packaging case
- Implant crown prosthesis, implant, prosthesis with packaging case
- Fixture prosthesis, implant, prosthesis with packaging case
- Packaging case Prosthetic packaging case
- Primary packaging case 31 Primary jar (primary bottle) 35 Primary cap (primary lid) 39 Primary O-ring (primary seal body) 40 Secondary packaging case 41 Secondary jar (secondary bottle) 45 Secondary cap (secondary lid) 49 Secondary O-ring (secondary seal body) 70 Artificial joint implant (prosthesis, implant, prosthesis with packaging case) 80 Artificial bone (prosthesis, implant, prosthesis with packaging case) )
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- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Epidemiology (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Dentistry (AREA)
- Cardiology (AREA)
- Transplantation (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Dental Prosthetics (AREA)
- Prostheses (AREA)
Abstract
Description
補綴物は、歯科では、義歯、クラウン、ブリッジ、歯科用インプラント等である。外科では、人工骨、人工臓器、人工関節インプラント等である。美容外科では、シリコンバッグ、シリコン樹脂板などである。義眼、義耳、義肢も補綴物に含まれる。
体内に埋入される補綴物をプロテーゼ、体の表面に取り付ける補綴物をエピテーゼと呼ぶ場合がある。
例えば、歯科用インプラントは、虫歯や破損により永久歯の歯根が失われた場合に、歯槽骨に設けた穴に挿入して固定するものである。この歯科用インプラントは、歯槽骨に固定されるフィクスチャー(人工歯根)と、フィクスチャーに螺着されるアバットメント(支台)とで構成される。アバットメントには、インプラントクラウン(人工歯冠)が装着される。
歯科用インプラント(フィクスチャー、アバットメント)は、チタンやチタン合金等の金属の他、アルミナやジルコニア等のセラミックスにより形成される。金属アレルギーの危険を回避するため、歯科用インプラントは、セラミックスで形成することが望ましい。
酸化エチレンガスによる滅菌は2~4時間を要し、更に滅菌後のエアレーションに8~12時間以上を要する。また、酸化エチレンガスは、毒性や燃焼性が高く、取り扱いに注意を要する。酸化エチレンガスによるガス滅菌は、作業効率が著しく低く、取扱いも困難である。
一方、γ線滅菌処理は、処理時間が短く、残留ガス等の危険もない点で優れている。
しかし、濃茶色化したジルコニアを加熱することにより、白色化する技術が開発された(特許文献1)。この技術により、インプラントをジルコニアで形成した場合であっても、γ線滅菌処理を採用できるようになった。
包装ケースは、ジルコニア製のインプラントを収容した状態でγ線滅菌処理と加熱処理が施されるので、耐放射線性、耐熱性等の性質が求められる。また、インプラントの滅菌状態を長期間に亘って維持する必要があるため、非発塵性、耐久性、安定性等の性質が求められる。
金属アレルギーの危険を回避するため、包装ケースについても金属以外の材料を用いることが望ましい。
前記補綴物は、歯科用インプラントであることを特徴とする。
前記補綴物は、人工関節インプラントであることを特徴とする。
前記補綴物は、人工骨または骨補填材であることを特徴とする。
補綴物および包装ケース付補綴物は、補綴物包装ケースに収容された状態でγ線滅菌処理と加熱処理が施され、そのまま保管・運搬される。したがって、滅菌状態を長期間に亘って維持できる。特に、補綴物包装ケースが補綴物と同一材料からなるため、補綴物に異物が付着しない。
図1は、本発明の実施形態に係る歯科用インプラント5を示す図である。
歯科用インプラント(補綴物、インプラント、包装ケース付補綴物)5は、歯槽骨2に固定される。
歯科用インプラント5は、歯槽骨2に固定されるフィクスチャー10と、フィクスチャー10に対して嵌合するアバットメント8を備える。
インプラントクラウン6よりも基端側は、歯茎4に覆われる。
後述するように、フィクスチャー10等には、γ線滅菌処理と加熱処理が施される。特に、フィクスチャー10は、体内(歯槽骨2)に埋入されるため、感染予防として滅菌処理が必須である。
図2は、本発明の実施形態に係る包装ケース20を示す断面図である。
図3は、本発明の実施形態に係る一次包装ケース30の一次ジャー31を示す図であって、(a)平面図、(b)正面図、(c)IIIc-IIIc断面図である。
図4は、本発明の実施形態に係る一次包装ケース30の一次キャップ35を示す図であって、(a)正面図、(b)平面図、(c)IVc-IVc断面図である。
図5は、本発明の実施形態に係る二次包装ケース40の二次ジャー41を示す図であって、(a)正面図、(b)Vb-Vb断面図である。
図6は、本発明の実施形態に係る二次包装ケース40の二次キャップ45を示す図であって、(a)平面図、(b)VIb-VIb断面図である。
一次包装ケース30は、フィクスチャー10を直接収容して、細菌の侵入を防止しつつ、輸送や保管中にフィクスチャー10を適切に保護する。二次包装ケース40は、一次包装ケース30を収容して、輸送や保管中にフィクスチャー10を適切に保護する。
一次包装ケース30は、一次ジャー31、一次キャップ35および一次Oリング39を備え、一次ジャー31の口部32に一次キャップ35を嵌合することにより連結される。
一次Oリング(一次シール体)39は、シリコンゴム等の耐熱性ゴムからなり、一次ジャー31と一次キャップ35の間に配置される。これにより、一次包装ケース30の内部が密閉される。
一次Oリング39は、シリコンゴムの他、例えばテフロン(登録商標)等のフッ素ゴムからなる場合であってもよい。
一次包装ケース30をフィクスチャー10とは異なる材料で形成した場合には、一次包装ケース30からフィクスチャー10に不純物(異物:コンタミネーション)を付着させてしまう。
そこで、一次包装ケース30は、フィクスチャー10と同一材料で形成され、一次包装ケース30からフィクスチャー10への不純物の付着が回避される。これにより、一次包装ケース30は、フィクスチャー10の滅菌状態を長期間に亘って維持できる。
そこで、一次包装ケース30では、一次ジャー31と一次キャップ35は、嵌合して連結される。
すなわち、一次ジャー31は、細長い広口瓶である。
口部32の外周面には、高い真円度を有する嵌合部32aが形成される。嵌合部32aは、一次ジャー31の長手方向において、全長の1/4程度の長さを有する。この嵌合部32aには、一次キャップ35が嵌合する。
嵌合部32aの一部には、Oリング溝32bが円周方向に沿って形成される。このOリング溝32bには、一次Oリング39が配置される。
収容部33の底部には、フィクスチャー10のセルフタップ13に係合する回転止め33aが形成される。セルフタップ13と回転止め33aが係合することにより、収容部33においてフィクスチャー10が軸周りの回転ができない状態に収容される。
把持部34の一部には、フィクスチャー10のサイズが刻印される。「38-10」の刻印は、フィクスチャー10が直径3.8mm、長さ10mmであることを意味する。
把持部34の内部は、一次ジャー31を軽量化するために、肉抜き穴34aが形成される。肉抜き穴34aは、一次ジャー31の底端から長手方向の中央付近まで掘り込まれる。
筒部36の内周面には、高い真円度を有する嵌合部36aが形成される。嵌合部36aは、一次キャップ35の長手方向において、全長の1/2程度の長さを有する。嵌合部36aは、一次ジャー31の嵌合部32aに嵌合する。また、嵌合部36aは、一次キャップ35を一次ジャー31に嵌合したときに、一次Oリング39に密着する。
把持部34の内部は、一次キャップ35を軽量化するために、肉抜き穴37aが形成される。肉抜き穴37aは、筒部36の底面から一次キャップ35の底端に向けて掘り込まれる。
二次包装ケース40は、二次ジャー41、二次キャップ45および二次Oリング49を備え、二次ジャー41の口部42に二次キャップ45を螺合することにより連結される。
二次Oリング(二次シール体)49は、一次Oリング39と同様に、シリコンゴムやフッ素ゴム等の耐熱性ゴムからなり、二次ジャー41と二次キャップ45の間に配置される。る。二次Oリング49は、二次包装ケース40の内部を密閉する。
二次包装ケース40は、加熱処理が施されても損傷しない耐久性(難燃性、耐熱性)が求められる。具体的には、200℃程度に加熱されても損傷しない性能が必要である。
そこで、二次包装ケース40は、耐熱性樹脂で形成され、フィクスチャー10を収容した状態で加熱処理を受ける。
そこで、二次包装ケース40では、一次ジャー31と一次キャップ35が移動できない構造が採用されている。具体的には、二次包装ケース40では、二次ジャー41と二次キャップ45は、螺合して連結されて、一次包装ケース30を隙間なく収容する。
すなわち、二次ジャー41は、一次ジャー31と同様に、細長い広口瓶である。
口部42の外周面には、先端側にOリング溝42aが円周方向に沿って形成される。さらに、口部42の外周面には、Oリング溝42aよりも底端側にねじ部42bと逃げ溝42cが形成される。このねじ部42bには、二次キャップ45が螺合する。
二次ジャー41のうち、収容部33よりも底端側には、把持部44が形成される。把持部34は、円柱形状を有する。これにより、二次ジャー41を指でつまみやすくできる。
筒部46の内周面には、ねじ部46aが形成される。ねじ部46aは、二次ジャー41のねじ部42bに螺合する。さらに、筒部46の内周面には、ねじ部42bよりも底端側にテーパー穴部46bが形成される。テーパー穴部46bは、二次キャップ45を二次ジャー41に螺合したときに、二次Oリング49に密着する。
二次キャップ45のうち、筒部46も底端側には、把持部47が形成される。把持部47は、円柱形状を有し、3つの面取り47aが形成される。これにより、二次キャップ45を指でつまみやすくできる。
フィクスチャー10と包装ケース20は、それぞれ以下の工程Aを経て製造される。
フィクスチャー10と同一形状のキャビティを有する金型にジルコニアの紛末(東ソー株式会社PXA-200タイプ等)を入れてプレス成形する。その後に、プレス成形品を例えば1500℃以上の温度で焼結する。これにより、フィクスチャー10の形成品が得られる。
同様に、一次包装ケース30を、プレス焼結処理を経て形成する。
アバットメント8やインプラントクラウン6がジルコニアで形成される場合には、同様にプレス焼結処理を経て形成される。
まず、包装ケース20にフィクスチャー10を収容する。一次包装ケース30にフィクスチャー10を収容し、この一次包装ケース30を二次包装ケース40に収容する。
γ線は、二次包装ケース40、一次包装ケース30およびフィクスチャー10を透過する。これにより、フィクスチャー10と一次包装ケース30は、濃茶色化する。フィクスチャー10と一次包装ケース30は、外面のみならず、内部も濃茶色化する。
なお、二次包装ケース40は、外見に、変色等の変化は見られない。
フィクスチャー10を収容した包装ケース20を100℃~300℃に加熱する。最高温度が100℃~300℃となればよい。加熱時間や保持時間等は任意に設定できる。
これにより、濃茶色化したフィクスチャー10と一次包装ケース30が白色化して、天然歯に近似する色に着色される。フィクスチャー10と一次包装ケース30は、外面のみならず、内部も天然歯に近似する色に着色される。つまり、天然歯に近似する色に着色された補綴物(フィクスチャー10)が得られる。
表1は、上述した製造工程A(A1~A3)を経て形成された補綴物S1~S13の測色結果を示す表である。
図8は、補綴物S1~S13の測色結果(波長と反射率)を示す図である。
図9は、補綴物S1~S13を示す図である。
分光測色計:コニカミノルタ社(旧ミノルタカメラ社)製 CM-1000
補綴物S1:第三工程A3において最高温度を100℃とした。
補綴物S2:第三工程A3において最高温度を110℃とした。
補綴物S3:第三工程A3において最高温度を120℃とした。
補綴物S4:第三工程A3において最高温度を130℃とした。
補綴物S5:第三工程A3において最高温度を140℃とした。
補綴物S6:第三工程A3において最高温度を150℃とした。
補綴物S7:第三工程A3において最高温度を160℃とした。
補綴物S8:第三工程A3において最高温度を170℃とした。
補綴物S9:第三工程A3において最高温度を180℃とした。
補綴物S10:第三工程A3において最高温度を190℃とした。
補綴物S11:第三工程A3において最高温度を200℃とした。
補綴物S12:第三工程A3において最高温度を250℃とした。
補綴物S13:第三工程A3において最高温度を300℃とした。
比較例S22:第一工程A1及び第二工程A2を経た(第三工程A3を省いた)。
比較例S23:従来の人工歯(VITA社 CEREC VITABLOCS MarkII)。
補綴物S1~S13は、濃茶色である比較例S22よりも白色系であり、純白色である比較例S21よりも茶色系である。したがって、補綴物S1~S13は、比較例S23と同様に、天然骨に近似する色に変色された。
フィクスチャー10と包装ケース20は、それぞれ以下の工程Bを経て製造することも可能である。
プレス焼結処理を経て、フィクスチャー10と一次包装ケース30を形成する。PEEKの原材料を切削加工して、二次包装ケース40を形成する。
第一工程B1は、第一工程A1と同一の工程である。
フィクスチャー10に対してレーザー光を照射して、表面を粗面化する。
レーザー光には、Nd:YAGレーザー又はYVO4レーザーが用いられる。例えば、Nd:YAGレーザー、YVO4レーザーの基本波(固体レーザー:波長1064nm、ファイバーレーザー:1090nm)を用いることができる。レーザー光の光径(直径)は、例えば5~50μmである。
レーザー光の照射により、フィクスチャー10は、変色(濃茶色化)する。
フィクスチャー10を700℃に加熱する。加熱時間や保持時間等は任意に設定できる。これにより、レーザー光の照射により変色(濃茶色化)したフィクスチャー10が白色化する。フィクスチャー10は、外面のみならず、内部も白色化する。
フィクスチャー10と包装ケース20に対してγ線を照射して殺菌する。
第四工程B4は、第二工程A2と同一の工程である。
フィクスチャー10を収容した包装ケース20を100℃~300℃に加熱する。
第五工程B5は、第三工程A3と同一の工程である。
表2は、上述した製造工程B(B1~B5)を経て形成された補綴物T1~T13の測色結果を示す表である。
図11は、補綴物T1~T13の測色結果(波長と反射率)を示す図である。
図12は、補綴物S1~S13を示す図である。
分光測色計:コニカミノルタ社(旧ミノルタカメラ社)製 CM-1000
補綴物T1:第五工程B5において最高温度を100℃とした。
補綴物T2:第五工程B5において最高温度を110℃とした。
補綴物T3:第五工程B5において最高温度を120℃とした。
補綴物T4:第五工程B5において最高温度を130℃とした。
補綴物T5:第五工程B5において最高温度を140℃とした。
補綴物T6:第五工程B5において最高温度を150℃とした。
補綴物T7:第五工程B5において最高温度を160℃とした。
補綴物T8:第五工程B5において最高温度を170℃とした。
補綴物T9:第五工程B5において最高温度を180℃とした。
補綴物T10:第五工程B5において最高温度を190℃とした。
補綴物T11:第五工程B5において最高温度を200℃とした。
補綴物T12:第五工程B5において最高温度を250℃とした。
補綴物T13:第五工程B5において最高温度を300℃とした。
比較例T22:第一工程B1~第三工程B3を経た(第四工程B4及び第五工程B5を省いた)。
比較例T23:第一工程B1~第四工程B4を経た(第五工程B5を省いた)。
比較例T24:従来の人工歯(VITA社 CEREC VITABLOCS MarkII)。比較例S23と同一物である。
補綴物T1~T13は、濃茶色である比較例T21,T23よりも白く、純白色である比較例T22よりも茶色である。したがって、補綴物S1~S13は、比較例T24と同様に、天然骨に近似する色に変色された。
このように、包装ケース20は、ジルコニア製のフィクスチャー10を収容した状態でγ線滅菌処理と加熱処理を受けることができる。そして、天然骨に近似する色に着色されたフィクスチャー10の滅菌状態を長期間に亘って維持できる。
そして、一次包装ケース30は、γ線滅菌処理と加熱処理を受けても変質することもなく(耐放射線性、耐熱性)、フィクスチャー10を長期間に亘って収容できる(耐久性、安定性)。
そして、二次包装ケース40は、γ線滅菌処理と加熱処理を受けても変質することもなく(耐放射線性、耐熱性)、フィクスチャー10を長期間に亘って収容できる(耐久性、安定性)。
フィクスチャー10は、天然骨に近似する色に着色される。また、フィクスチャー10は、着色材料を用いていないので、人体に対する悪影響が皆無である。同様に、アバットメント8やインプラントクラウン6を天然骨に近似する色に着色することもできる。このため、口腔内の審美性が損なわれることがない。
なお、包装ケース20も天然骨に近似する色(フィクスチャー10と同一色)に着色される。
特に、一次包装ケース30がフィクスチャー10と同一材料からなるため、フィクスチャー10に異物が付着しない。フィクスチャー10に金属が付着しないので、金属アレルギーの危険を回避できる。
図13は、本発明の実施形態に係る人工関節インプラント70を示す図である。
本発明の補綴物は、人工関節インプラント70であってもよい。
人工関節インプラント70は、ジルコニアを含むセラミックスにより形成される。人工関節インプラント70の一部がジルコニアにより形成される場合であってもよい。
人工関節インプラント(補綴物、インプラント、包装ケース付補綴物)70は、股関節の骨盤71と大腿骨72に埋め込まれる。
人工関節インプラント70の製造工程においても、γ線滅菌処理(第二工程A2、第四工程B4)の後に、加熱処理(第三工程A3、第五工程B5)が行われる。
図14は、本発明の実施形態に係る人工骨80を示す図である。
本発明の補綴物は、人工骨80(artificial bone)であってもよい。
人工骨(補綴物、インプラント、包装ケース付補綴物)80は、頭蓋骨81の欠損部分に配置される頭蓋プレートである。
人工骨80は、ジルコニアを含むセラミックスにより形成される。人工骨80の一部がジルコニアにより形成される場合であってもよい。
人工骨80の製造工程においても、γ線滅菌処理(第二工程A2、第四工程B4)の後に、加熱処理(第三工程A3、第五工程B5)が行われる。
人工関節インプラント70や人工骨80は、着色材料を用いることなく、天然骨に近似する色に着色される。このため、審美性が損なわれることがない。また、着色材料を用いていないので、人体に対する悪影響が皆無である。
このため、包装ケースは、人工関節インプラント70等を収容した状態でγ線滅菌処理と加熱処理が施される。したがって、天然骨に近似する色に着色された人工関節インプラント70等は、滅菌状態を長期間に亘って維持できる。
本発明の技術範囲は、上述した実施形態に限定されるものではない。本発明の趣旨を逸脱しない範囲において、上述した実施形態に種々の変更を加えたものを含む。実施形態で挙げた具体的な材料や層構成などはほんの一例に過ぎず、適宜変更が可能である。
本発明の補綴物と補綴物包装ケース(包装ケース付補綴物)の材料は、ジルコニアと、カーボンや樹脂やガラス等とを組み合わせたものであってもよい。
形成工程(第一工程A1,B1)では、任意の製造方法・装置を用いることができる。
表面処理工程(第二工程B2)及び高温加熱処理工程(第三工程B3)では、任意の製造方法・装置を用いることができる。
人工骨のように特定の形状を有する場合に限らず、骨補填材(不図示)(bone prosthetic material)のように特定の形状を有しない場合であってもよい。
Claims (12)
- 補綴物を収容する一次包装ケースと、
前記一次包装ケースを収容する二次包装ケースと、
を備え、
前記補綴物と前記一次包装ケースがそれぞれジルコニアを含む材料からなり、
前記二次包装ケースが耐熱性材料からなり、
前記一次包装ケースと前記二次包装ケースにより前記補綴物を二重包装した状態でγ線滅菌処理と加熱処理が施されて、前記補綴物を天然骨に近似する色に変色させる補綴物包装ケース。 - 前記近似する色は、L*a*b*表色系において、L*が60~90、a*が-5~10、b*が-5~10である請求項1に記載の補綴物包装ケース。
- 前記加熱処理は、最高温度が100℃~300℃である請求項1または2に記載の補綴物包装ケース。
- 前記一次包装ケースは、
前記補綴物を収容する一次瓶体と、
前記一次瓶体に嵌合する一次蓋体と、
前記一次瓶体と前記一次蓋体の間に配置される一次シール体と、
を備える請求項1から3のうちいずれか一項に記載の補綴物包装ケース。 - 前記二次包装ケースは、
前記一次包装ケースを収容する二次瓶体と、
前記二次瓶体に螺合する二次蓋体と、
前記二次瓶体と前記二次蓋体の間に配置される二次シール体と、
を備える請求項1から4のうちいずれか一項に記載の補綴物包装ケース。
- 前記二次包装ケースは、熱可塑性樹脂からなる請求項1から5のうちいずれか一項に記載の補綴物包装ケース。
- 前記補綴物は、体内に埋入されるインプラントである請求項1から6のうちいずれか一項に記載の補綴物包装ケース。
- 前記補綴物は、歯科用インプラントである請求項7に記載の補綴物包装ケース。
- 前記補綴物は、人工関節インプラントである請求項7に記載の補綴物包装ケース。
- 前記補綴物は、人工骨または骨補填材である請求項7に記載の補綴物包装ケース。
- ジルコニアを含む材料からなり、γ線滅菌処理と加熱処理が施されて天然骨に近似する色に変色される補綴物であって、
ジルコニアを含む材料からなる一次包装ケースと耐熱性材料からなる二次包装ケースにより二重包装された状態でγ線滅菌処理と加熱処理が施される補綴物。 - 補綴物と、
前記補綴物を収容する一次包装ケースと、
前記一次包装ケースを収容する二次包装ケースと、
を備え、
前記補綴物と前記一次包装ケースがそれぞれジルコニアを含む材料からなり、
前記二次包装ケースが耐熱性材料からなり、
前記一次包装ケースと前記二次包装ケースにより前記補綴物を二重包装した状態でγ線滅菌処理と加熱処理が施されて、前記補綴物が天然骨に近似する色に変色される包装ケース付き補綴物。
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|---|---|---|---|
| EP15897151.5A EP3318217B1 (en) | 2015-07-01 | 2015-07-01 | Prosthesis packaging case, prosthesis, and prosthesis with packaging case |
| PCT/JP2015/068951 WO2017002224A1 (ja) | 2015-07-01 | 2015-07-01 | 補綴物包装ケース、補綴物、包装ケース付補綴物 |
| US15/579,297 US10285796B2 (en) | 2015-07-01 | 2015-07-01 | Prosthesis packaging case, prosthesis, and prosthesis with packaging case |
| CN201580081171.4A CN107708603A (zh) | 2015-07-01 | 2015-07-01 | 补缀物包装盒、补缀物、带有包装盒的补缀物 |
| JP2016501903A JP6085774B1 (ja) | 2015-07-01 | 2015-07-01 | 補綴物包装ケース |
| ES15897151T ES2788719T3 (es) | 2015-07-01 | 2015-07-01 | Estuche de envasado de prótesis, prótesis, y prótesis con estuche de envasado |
| KR1020177035031A KR101832979B1 (ko) | 2015-07-01 | 2015-07-01 | 보철물 포장 케이스 |
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- 2015-07-01 KR KR1020177035031A patent/KR101832979B1/ko not_active Expired - Fee Related
- 2015-07-01 EP EP15897151.5A patent/EP3318217B1/en active Active
- 2015-07-01 US US15/579,297 patent/US10285796B2/en not_active Expired - Fee Related
- 2015-07-01 CN CN201580081171.4A patent/CN107708603A/zh active Pending
- 2015-07-01 WO PCT/JP2015/068951 patent/WO2017002224A1/ja not_active Ceased
- 2015-07-01 ES ES15897151T patent/ES2788719T3/es active Active
- 2015-07-01 JP JP2016501903A patent/JP6085774B1/ja not_active Expired - Fee Related
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| KR20190000195U (ko) * | 2017-07-13 | 2019-01-23 | (주)쓰리디케이피 | 의료용 나사 케이스 |
| KR200490668Y1 (ko) | 2017-07-13 | 2019-12-16 | (주)쓰리디케이피 | 의료용 나사 케이스 |
| CN109893695A (zh) * | 2017-12-11 | 2019-06-18 | 泰尔茂株式会社 | 帽盖 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3318217B1 (en) | 2020-04-08 |
| CN107708603A (zh) | 2018-02-16 |
| EP3318217A4 (en) | 2019-03-20 |
| US20180296314A1 (en) | 2018-10-18 |
| ES2788719T3 (es) | 2020-10-22 |
| KR20180002813A (ko) | 2018-01-08 |
| JP6085774B1 (ja) | 2017-03-01 |
| EP3318217A1 (en) | 2018-05-09 |
| KR101832979B1 (ko) | 2018-02-28 |
| JPWO2017002224A1 (ja) | 2017-07-13 |
| US10285796B2 (en) | 2019-05-14 |
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