US3686754A - Calcinable ring in thermoplastic material for taking imprints when making permanently fixed false teeth - Google Patents

Calcinable ring in thermoplastic material for taking imprints when making permanently fixed false teeth Download PDF

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Publication number
US3686754A
US3686754A US86541A US3686754DA US3686754A US 3686754 A US3686754 A US 3686754A US 86541 A US86541 A US 86541A US 3686754D A US3686754D A US 3686754DA US 3686754 A US3686754 A US 3686754A
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United States
Prior art keywords
ring
imprint
stump
calcinable
rings
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Expired - Lifetime
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US86541A
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English (en)
Inventor
Joseph Charles Richa Kondoloff
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Individual
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Individual
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    • 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
    • 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
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods

Definitions

  • the ring forming the subject matter of the invention is made of calcinable thermoplastic material and is of substantially cylindrical shape with a wall thickness of 0.3 0.4 mm and a height of 8 12 mm, the ring being provided to suit diameters increasing by 0.5 mm for example over the range 4 to 13 mm approximately. Its cervical edge is indented. To obtain the imprint, this ring is fitted on to the stump of the tooth to be replaced and the imprint or model is then taken directly. This ring avoids the need for preparing a ring in special metal.
  • the invention resides in the provision of a ring made of calcinable thermoplastic resin and of substantially cylindrical form, this ring being in a form to suit a graduated range of diameters covering the span of the usual diameters of toothstumps and being adapted to be fitted on a stump so that the print can be taken directly.
  • the ring forming the subject-matter of the invention is provided at least on its cervical edge with an opening permitting a good fit below the gum.
  • the material of which the ring is made can be any thermoplastic substance that is sufficiently deformable and can be modelled, that is to say, shaped to fit the form of the stump tightly, after having been slightly heated, for example by immersion in water at 4050 C., this deformability also facilitating fitting below the gum.
  • the .ring preferably has a quite small wall-thickness, less than 0.6 mm for example and preferably as little as 0.3 to 0.4 mm.
  • the invention also concerns a method for taking the imprints with a view to making permanently fixed false teeth, this method consisting in utilizing a ring as described above and selected to suit the perimeter of the stump, after softening of the ring if necessary, in then making a top imprint with a normal material for example, in then, if required, introducing a'sufi'lciently fluid correcting material into the imprint obtained with a view to this being compressed below the gum by the ring that remains in the imprint, in casting the imprint in a suitable material, the ring then serving the purpose of forming the cervical edge of the cast element, and in filling a prepared ring with a resin as far as the top imprint so as to obtain the precise configuration of the tooth stump, the form of the bite surface being obtained by chewing movements.
  • rings made of calcinable thermoplastic resin as described above thus enables an imprint below the gum to be made without any prior preparation and enables an ideal cervical fit to be made of the crown portion and of the crown that has been made.
  • FIG. I is a perspective view of a ring that may be used in accordance with the invention.
  • FIGS. 2 to 5 show different stages in the taking of an imprint.
  • the ring 1 which is illustrated in FIG. 1 and can be used for the taking of imprints for making false teeth, is
  • This ring is made of calcinable thermoplastic material which can be readily deformed at a temperature of 45 C. for example so that it can be moulded on to the stump of a tooth.
  • the ring has a wall-thickness of from 0.3 to 0.4 mm and has a height of'8 to 12 mm and is one of a set of rings having different diameters. The method using this ring for making an imprint will be described by reference to FIGS. 2 to 5.
  • the ring is first fitted on to the stump 2 of the cut-down tooth. To mould the ring on to the stump, it is first immersed in water at 45 C. approximately and this renders the ring readily deformable.
  • the indented cervical edge la of the ring 1 provides a good fit below the gum.
  • the numeral 3 indicates the root of the tooth and 4 the gum.
  • a top imprint is made as shown in FIG. 3 with the help of a standard material such as an alginate, a thiocol, a silicone etc., indicated by the numeral 5 in FIG. 3, the numeral 6 designating the imprint mould.
  • the imprint is removed from the mouth of the patient.
  • a correcting material 7 such as a fluid silicone or a fluid alginate is introduced into the imprint, the compression below the gum of this material being achieved by the blocking action of the ring 1 which is now incorporated in the imprint.
  • a suitable substance can now be poured into the imprint in known manner, the cervical edge of the required cast element being defined by the ring 1.
  • the ring 1 prepared in the manner described by reference to FIGS. 2 and 3, with a self-polymerizing calcinable resin to obtain the precise shape of the tooth-stump, thereby to produce a morpho-functional generated crown.
  • the Y numeral 8 designates this resin and the numeral 9 a tooth on the opposite jaw, chewing movements enabling the configuration of the bite surface to be obtained.
  • a method for taking imprints for making false teeth comprising the steps of selecting a ring from a set of rings made of calcinable thermoplastic material, whereby said rings have different diameters ranging from 4 to 13 mm approximately, the difference between one diameter and the next being 0.5 to 1 mm, said thermoplastic material being such as to be readily deformable at a temperature of 40 to 50 C., said ring being selected from said set of rings to suit the perimeter of a preliminary prepared stump, softening said ring at a temperature of 40 to 50 C.
  • a method according to claim 1, comprising the step of introducing a relatively fluid correcting material into the imprint as taken, so that said material is compressed below the gum by the ring which remains in the imprint.
  • a method for directly producing a morphofunctional generated crown comprising the steps of selecting a ring from a set of rings made of calcinable thermoplastic material, said rings having different diameters ranging from 4 to 13 mm. approximately, the difference between one diameter and the next being 0.5 to 1 mm, said thermoplastic material being such as to be readily deformable at a temperature of 40 to C., said ring being selected from said set of rings to suit the perimeter of a preliminary prepared stump, softening said ring at a temperature of 40 to 50 C.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Prosthetics (AREA)
  • Dental Preparations (AREA)
  • Adornments (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US86541A 1969-12-19 1970-11-03 Calcinable ring in thermoplastic material for taking imprints when making permanently fixed false teeth Expired - Lifetime US3686754A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR6944029A FR2071150A5 (fr) 1969-12-19 1969-12-19

Publications (1)

Publication Number Publication Date
US3686754A true US3686754A (en) 1972-08-29

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Family Applications (1)

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US86541A Expired - Lifetime US3686754A (en) 1969-12-19 1970-11-03 Calcinable ring in thermoplastic material for taking imprints when making permanently fixed false teeth

Country Status (9)

Country Link
US (1) US3686754A (fr)
BE (1) BE755329A (fr)
CH (1) CH543275A (fr)
DE (1) DE2061628C3 (fr)
FR (1) FR2071150A5 (fr)
GB (1) GB1333249A (fr)
LU (1) LU61540A1 (fr)
NL (1) NL7013557A (fr)
SE (1) SE366910B (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255140A (en) * 1979-06-06 1981-03-10 Johnson & Johnson Dental Products Company Apparatus and method for dental impressions
US4483675A (en) * 1981-05-07 1984-11-20 Marshall Kenneth H Production of tubes for dental impressions
WO1985001433A1 (fr) * 1983-09-27 1985-04-11 Mark William Knapp Forme de noyau dentaire
US5385469A (en) * 1992-06-12 1995-01-31 Weissman; Bernard Method for forming a coronal replacement for a tooth and product for casting the crown
US20050202367A1 (en) * 2004-03-15 2005-09-15 Ralf Kollefrath Process for the retraction of sulcus
US20070065770A1 (en) * 2003-03-19 2007-03-22 Dierk Lubbers Dental kit and method for retracting sulcus
US8602783B2 (en) * 2011-10-21 2013-12-10 Zvi Fudim Impression gingival cuff for dental implants
US20140302458A1 (en) * 2013-04-09 2014-10-09 Biomet 3I, Llc Dental Implant With Coded Upper Surface
US20190223992A1 (en) * 2018-01-23 2019-07-25 King Saud University Kit for measuring vertical dimension for dental restoration
US20230149124A1 (en) * 2020-05-07 2023-05-18 Rick White Dental reparative article and method of manufacturing and installing
US20230210632A1 (en) * 2020-05-07 2023-07-06 Rick White Dental reparative article

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3043194A1 (de) * 1980-11-15 1982-07-01 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Einrichtung zum mechanischen trennen von fluessigkeiten aus fluessigkeitsfeststoffgemischen in einer schneckenpresse
DE3046384A1 (de) * 1980-12-09 1982-07-08 Berstorff Gmbh Masch Hermann "auspresseinrichtung"
DE3326222C1 (de) * 1983-07-21 1985-02-07 Gert Dr. 6840 Lampertheim Hoppe Vorrichtung zum Abformen von Kronenstümpfen und Einlagefüllungspräparationen in der Zahnheilkunde

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390458A (en) * 1965-05-10 1968-07-02 Joseph M. Lytton Method of preparing for dental impressions
US3530585A (en) * 1969-07-09 1970-09-29 Robert S Goldstine Means for fashioning bands for taking impressions of teeth

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390458A (en) * 1965-05-10 1968-07-02 Joseph M. Lytton Method of preparing for dental impressions
US3530585A (en) * 1969-07-09 1970-09-29 Robert S Goldstine Means for fashioning bands for taking impressions of teeth

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4255140A (en) * 1979-06-06 1981-03-10 Johnson & Johnson Dental Products Company Apparatus and method for dental impressions
US4483675A (en) * 1981-05-07 1984-11-20 Marshall Kenneth H Production of tubes for dental impressions
WO1985001433A1 (fr) * 1983-09-27 1985-04-11 Mark William Knapp Forme de noyau dentaire
US4775319A (en) * 1983-09-27 1988-10-04 Knapp Mark W Dental core form and method of use
US5385469A (en) * 1992-06-12 1995-01-31 Weissman; Bernard Method for forming a coronal replacement for a tooth and product for casting the crown
US20100035213A1 (en) * 2003-03-19 2010-02-11 Coltene Whaledent Ag Dental Kit and Method for Retracting Sulcus
US20070065770A1 (en) * 2003-03-19 2007-03-22 Dierk Lubbers Dental kit and method for retracting sulcus
US7789663B2 (en) 2004-03-15 2010-09-07 Coltene Ag Process for the retraction of sulcus
US20050202367A1 (en) * 2004-03-15 2005-09-15 Ralf Kollefrath Process for the retraction of sulcus
US8602783B2 (en) * 2011-10-21 2013-12-10 Zvi Fudim Impression gingival cuff for dental implants
US20140302458A1 (en) * 2013-04-09 2014-10-09 Biomet 3I, Llc Dental Implant With Coded Upper Surface
US11065090B2 (en) * 2013-04-09 2021-07-20 Biom et 3I, LLC Dental implant with coded upper surface
US11864975B2 (en) 2013-04-09 2024-01-09 Biomet 3I, Llc Dental implant with coded upper surface
US20190223992A1 (en) * 2018-01-23 2019-07-25 King Saud University Kit for measuring vertical dimension for dental restoration
US10363121B1 (en) * 2018-01-23 2019-07-30 King Saud University Kit for measuring vertical dimension for dental restoration
US20230149124A1 (en) * 2020-05-07 2023-05-18 Rick White Dental reparative article and method of manufacturing and installing
US20230210632A1 (en) * 2020-05-07 2023-07-06 Rick White Dental reparative article

Also Published As

Publication number Publication date
LU61540A1 (fr) 1970-10-22
CH543275A (fr) 1973-10-31
SE366910B (fr) 1974-05-13
DE2061628C3 (de) 1981-12-24
BE755329A (fr) 1971-02-01
FR2071150A5 (fr) 1971-09-17
DE2061628A1 (de) 1971-06-24
GB1333249A (en) 1973-10-10
DE2061628B2 (de) 1981-04-30
NL7013557A (fr) 1971-06-22

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