JPH0310982Y2 - - Google Patents

Description

[Detailed description of the invention] This invention is an occlusal device used in dental treatment to press the prosthesis with the patient's occlusion until the adhesive hardens when the prosthesis is attached. It concerns the seat.

In dental treatment, when a molded prosthesis such as a crown, bridge, or inlay is attached to a patient's tooth using an adhesive such as cement, the attached prosthesis is fixed in place. To ensure this, the patient should have his or her upper and lower teeth in tight occlusion, and the prosthesis should be firmly pressed against the area to be restored. At this time, in order to forcefully push the prosthesis through occlusion, an appropriate interposition is held in the occlusal position of the prosthesis. By the way, the inclusions used in this way are appropriately selected from those that are readily available, and in most cases, short cut chopsticks are used.

For this reason, there are problems such as it is not easy to use, sterilization/disinfection tends to be incomplete, and it is difficult to handle while keeping it in a sterile state.Therefore, there is a demand for an inclusion that is easy to use and easy to handle. There is.

The present invention was developed to solve this problem, and when the attached prosthesis is pressed by occlusion, it does not shift from the prosthesis or move the prosthesis to an irregular position. An object of the present invention is to provide an occlusal sheet for dental treatment that can stably push a prosthesis into a predetermined position and reliably maintain a sterile state.

In the present invention, as a means to achieve this purpose, a flexible and elastic synthetic resin material such as polyurethane is used to create a tooth with a width slightly wider than the width of a normal human tooth. A thin sheet main body approximately three times the length of the main body is formed, and numerous small protrusions are arranged vertically and horizontally on the upper and lower surfaces of the sheet main body and integrally formed with the synthetic resin material. The present invention proposes an occlusal sheet for dental treatment in which a gripping portion is integrally and continuously formed from the aforementioned synthetic resin material at one end in the longitudinal direction of the main body of the sheet.

Next, embodiments will be described in detail with reference to the drawings.

FIG. 1 is a plan view of an occlusal sheet A for dental treatment according to the present invention, in which 1 is the sheet main body;
2... indicates a small protrusion, and 3 indicates a gripping portion.

The main body of the sheet 1 is made of a flexible and elastic synthetic resin material such as polyurethane, and is formed into a small flexible strip that can be bent freely. It is slightly wider than the width, its length l is approximately three times the front-to-back length of a normal human tooth, and its thickness d is approximately 1.2 mm (Figure 2). . As shown in FIG. 5, the sheet main body 1 is curved in a somewhat arc shape as shown in FIG. I've let it happen.

The small protrusions 2 are integrally molded with the sheet main body 1 from the synthetic resin material when the sheet main body 1 is molded from the synthetic resin material described above. As shown in FIG. 2, these small protrusions 2... are small protrusions 2a... formed on the upper surface side of the sheet main body 1 and small protrusions 2b... formed on the lower surface side of the sheet main body 1 in the longitudinal direction of the sheet main body 1. The small protrusions 2 are arranged and aligned so that they are shifted by a distance corresponding to half the diameter of the small protrusions 2, and as shown in FIG. The small protrusions 2b are arranged and aligned so that they are shifted by a distance of half the diameter of the small protrusions 2 in the left and right width direction of the sheet main body 1.

When the sheet main body 1 is molded from the synthetic resin material, the gripping portion 3 is formed integrally and continuously with the synthetic resin material so as to extend the sheet main body 1 in the longitudinal direction. The width of the gripping portion 3 on its left and right sides is
It is formed to have the same width as the left and right widths of the sheet main body 1, but its thickness is the same as the wall thickness d of the sheet main body 1 and the protruding height of the small protrusions 2... as shown in FIGS. 2 and 4. The thickness is set by adding .h, and
Its extension direction is determined by extending an imaginary chord connecting both ends of the sheet main body 1 in the longitudinal direction (Fig. 1), and when the sheet main body 1 is aligned with the curved part of the tooth row. The grip part 3 is made to come out of the tooth row.

In addition, the gripping portion 3 has a cone-shaped protrusion 4 on the upper surface side of the sheet main body 1 for pushing the prosthesis in the case that the prosthesis is an inlay.
It is made of a synthetic resin material that is molded into one piece.
The cone-shaped protrusion 4 for pushing the inlay has a diameter of about 6.5 mm and a protrusion height of about 5 mm.

Next, FIGS. 6 to 8 show another embodiment. This embodiment differs from the embodiments shown in FIGS. 1 to 4 described above only in that the sheet main body 1 is not curved and is formed into a somewhat longer rectangular shape when viewed from above. , the other components remain unchanged.

That is, the width W and wall thickness d of the sheet main body 1, the diameter and protrusion height h of the small protrusions 2, etc. are the same as in the embodiment shown in FIGS. 1 to 4,
Further, a cone-shaped protrusion 4 for pushing in an inlay is formed on the upper surface side of the gripping part 3. However, the length l' of the sheet main body 1 is longer than the length l of the sheet main body 1 in the embodiment shown in FIG. It has been expanded by that amount.

The embodiment device constructed in this manner operates as follows.

When the prosthesis C formed by a mold is placed on the part of the patient's tooth t to be prosthetized using an adhesive such as cement, the patient holds the gripping part 3 of the occlusal sheet A, and the sheet itself 1 is positioned so that it can be held in the mouth at the position of the installed prosthesis C, as shown in FIG. 9, and in this state, the patient is allowed to occlude the upper and lower tooth rows.

At this time, the occlusal sheet A has a sheet main body 1 which is held in the jaws of the prosthesis C and the tooth t that faces it, and has a flexible thin plate shape. Since the countless small protrusions 2 are arranged vertically and horizontally, when occlusally strongly, the prosthesis C and the opposing teeth t are pressed into close contact without causing any displacement. As a result, the prosthesis C is correctly pushed into the predetermined prosthetic position, and the margin of the interposed cement is expanded to the thickness with the strongest adhesive force, and the cement solidifies. The prosthesis C is held in place until the end of the procedure.

In addition, if the prosthesis C is an inlay that fills a hole in the occlusal surface of a molar tooth, the occlusal sheet A
Have the patient hold the sheet main body 1 side of it,
The protrusion 4 formed on the gripping part 3 is held in the mouth with the protrusion 4 facing the prosthetic site, and in this state, the patient bites strongly, and the protrusion 4 is used to forcefully push the prosthesis C. Become.

In addition, in the embodiment shown in FIGS. 1 to 4 in which the sheet main body 1 is curved in an arc shape in a plan view, when the sheet main body 1 is held in the mouth in accordance with the prosthesis site, the gripping portion 3 is held in the occlusal position. This can be easily removed by shortening the length of the seat main body 1.

In addition, since the occlusal sheet A is molded from a synthetic resin material, it can be completely disinfected and sterilized, and by storing it in that state and using it as a disposable item each time it is used, it is possible to avoid toxic substances in the oral cavity. This will surely prevent bacteria and viruses from being brought in or taken out.

As explained above, the occlusal sheet for dental treatment according to the present invention is made of a soft and elastic synthetic resin material such as polyurethane, and has a width that is somewhat wider than the width of a normal human tooth, and is made of a flexible and elastic synthetic resin material such as polyurethane. A thin plate-shaped sheet main body 1 having a length approximately three times as long is formed, and numerous small protrusions 2 are arranged vertically and horizontally on the upper and lower surfaces of the sheet main body 1, and formed integrally with the synthetic resin material. Since the holding part 3 is integrally and continuously formed from the synthetic resin material at one end of the sheet main body 1 in the longitudinal direction, when the attached prosthesis is pressed by occlusion, To stably push a prosthesis into a predetermined position without shifting it from the prosthesis or moving the prosthesis to an irregular position, and to surely maintain a sterile state.

[Brief explanation of the drawing]

Figure 1 is a plan view of the occlusal sheet for dental treatment according to the present invention, Figure 2 is a front view of the same, Figure 3 is a bottom view of the same, Figure 4 is a side view of the same, and Figure 5 is a side view of the same. An explanatory diagram of the action, FIG. 6 is a plan view of another embodiment,
Figure 7 is a side view of the same as above, Figure 8 is a front view of the same as above,
FIG. 9 is an explanatory diagram of the state of use. Explanation of drawing symbols, A... Occlusal sheet, C...
Prosthesis, d...Thickness, h...Height, l, l'...Length, t...Teeth, W...Width, 1...Sheet main body,
2, 2a, 2b... small protrusion, 3... gripping part, 4...
…protrusion.

Claims (1)

[Scope of utility model registration request] Made of flexible and elastic synthetic resin material such as polyurethane, it has a width that is slightly wider than the width of a normal human tooth.
A thin plate-shaped sheet main body 1 having a length approximately three times the longitudinal length of the teeth is formed, and numerous small protrusions 2 are arranged vertically and horizontally on the upper and lower surfaces of the sheet main body 1, and the synthetic resin is An occlusal sheet for dental treatment, in which the sheet main body 1 is integrally formed with a gripping portion 3 made of the synthetic resin material at one end in the longitudinal direction thereof.