JPS6282984A - Mousepiece original shape body - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention is used for sports, especially boxing, to protect teeth, cheeks, mouth, temporomandibular joints, etc. from blows, or for medical purposes, to protect teeth from tooth flaps. The present invention relates to a mouthpiece prototype body for manufacturing a mouthpiece used for, etc.

BACKGROUND OF THE INVENTION Traditionally, boxing mouthpieces have been manufactured individually by dentists to fit the user's dentition, or in bulk from rubber-like elastic material to fit standard dentition. There is.

Problems to be Solved by the Invention However, the former method is expensive and is hardly used, while the latter method is inexpensive, but
It cannot be adapted to the general user's dentition.

SUMMARY OF THE INVENTION Therefore, the present invention aims to provide a mouthpiece prototype that can be manufactured easily and inexpensively to suit the dentition of each user.

Means for solving the problems The technical means of the present invention for solving the above problems are as follows:
The occlusal part, the outer wall, and the inner wall are integrally provided with a size that can fit loosely into the upper jaw teeth of a standard dentition using a rubber-like elastic material, and the inner surfaces of the interocclusal part, the outer wall, and the inner wall is formed on a rough surface.

Effect The effect of the above technical means is as follows. That is, a gap layer made of a paste-like rubber-like elastic material that hardens at room temperature is applied to the mouthpiece prototype body, the mouthpiece prototype body with this gap layer formed thereon is placed over the maxillary teeth, and the gap layer and the mouthpiece are bonded together. A mouse that adapts to the user's own dentition by occlusating the upper and lower teeth with the piece prototype interposed, making the gap layer conform to the shape of the upper teeth, and after fitting, hardening the gap layer. Pieces can be obtained easily and inexpensively. At this time, since the inner surface of the mouthpiece original body is formed into a rough surface, the gap calendar can be firmly held by mechanical fitting force, and durability can be obtained.

Example EMBODIMENT OF THE INVENTION Below, one embodiment of the present invention will be described in detail based on the drawings.

As shown in FIGS. 1 to 4, the mouthpiece prototype body 1 is made of a rubber-like elastic material, such as silicone rubber, which is odorless, non-toxic, and can have an appropriate hardness as a mouthpiece. outer wall 3 and inner wall 4 respectively.
are integrally formed, and the whole is formed into a horseshoe shape. Cutouts 5 and 6 are formed in the center and upper portions of both sides of the outer wall 3 to avoid the upper labial frenulum, respectively. In the above-mentioned occlusal part 2, the anterior tooth side occlusal part 2a is the molar side occlusal part 2.
It is formed to be about twice as thick as B, and is adapted to fit into the gap between the front teeth and the molar side when the upper and lower teeth are engaged. In this way, the thickness of the anterior tooth side occlusal section 2a is approximately twice as thick as the thickness of the molar side occlusal section 2b, and on the other hand, the occlusal force on the anterior side is greater than the occlusal force on the molar side. is about 1/4, so silicone rubber, which is harder than the other occlusal parts, is used for the molar side occlusal part 2b. The inner surfaces of the occlusal part 2, the outer wall 3, and the inner wall 4 of the mouthpiece prototype body 1 are formed into rough surfaces consisting of a large number of fine irregularities. The mouthpiece prototype l has a slightly larger inner cavity so that it can fit loosely into the upper jaw teeth of a standard dentition.

Heat-curable silicone rubber is used to form this mouthpiece prototype body l. This heat-curable silicone rubber is made mainly from highly polymerized organopolysiloxane (generally referred to as silicone polymer, silicone raw rubber, or silicone gum, and is in the form of putty), with reinforcing fillers such as synthetic silica, and crushed silica. A mixture of an extender filler, a plasticizer such as an organopolysiloxane having a relatively low molecular weight, a vulcanizing agent (pasteurizing agent) such as benzoyl peroxide, and the like is used. This heat-curable silicone rubber is molded using a mold.

During this molding, the inner surface of the mouthpiece prototype body 1 can be easily formed into a rough surface by forming the surface of the mold into a rough surface consisting of many irregularities. Also, during this molding, silicone rubber with high hardness is mixed in the molar tooth side occlusal part 2b. At this time, it is desirable that the outer surface of the occlusal part 2 be formed into a relatively smooth surface so that the cusps of the mandibular teeth do not dig into it.

As an example, the molar side occlusal part 2b of the mouthpiece original body 1
Use rubber hardness of about 60 for other parts, and use rubber hardness of about 50 for other parts.
Use something of a certain degree.

In order to manufacture a mouthpiece that matches the user's own dentition using this mouthpiece prototype l, first, as shown in Figs. A relatively thin layer of curable silicone rubber is applied to form a gap layer 7 for fitting the upper jaw teeth. This paste-like, room-temperature-curing silicone rubber is a two-component type (for example, 5E672 manufactured by Toray Silicone Co., Ltd.).
1) is used. The basic composition of this two-component type silicone rubber is a base polymer (generally a diorganopolysiloxane with a functional group at the end), a crosslinking agent (a three-dimensional polymer that connects the base oils, and crosslinks them to form a three-dimensional rubber elastic body). A curing catalyst for reacting the base polymer and crosslinking material, a filler (for reinforcing, increasing the amount), etc. In this two-component type silicone rubber, the above components are basically divided into a main agent (base) and a curing agent (catalyst) based on the combination of essential components as shown below.

■, Main agent: Base clear crosslinking agent Curing agent: Curing catalyst (most of 1i! type) II, Main agent: Base polymer Curing agent: Crosslinking agent, curing catalyst (&Ii! part of type) ■, Main agent 2 Base polymer, curing catalyst, curing agent: cross-linking agent (addition type) By storing the main resin and curing agent separately in this way, storage stability is improved and silicone rubber can be easily processed as needed. be able to.

By mixing the two liquids of the base agent and the curing agent, a paste is formed, and this can be applied to the inner surface of the mouthpiece shaped body l as described above to easily form the interstitial layer 7. .

Next, the mouthpiece prototype 1 with the gap layer 7 formed thereon is placed over the maxillary teeth, and the maxillary and mandibular teeth are brought into occlusion with the gap layer 7 and the mouthpiece prototype 1 interposed, as shown in FIG. The gap N7 is deformed to fit the shape of the maxillary teeth. Thereafter, the mouthpiece prototype 1 and the gap layer 7 are separated from the maxillary teeth, and the gap layer 7 is hardened by a condensation reaction or an addition reaction, thereby forming a mouthpiece suitable for the maxillary teeth. This curing proceeds at room temperature, but the curing speed can be increased by increasing the temperature. If the above-mentioned two-component type silicone rubber is used, it is a so-called deep-curing type, and the curing reaction can proceed over the entire area.

At this time, even if the interstitial layer 7 made of paste-like silicone rubber is applied to the cured silicone rubber, the chemical adhesion of the interstitial layer 7 to the silicone rubber is poor or nonexistent; By forming the inner surface of the mouthpiece prototype body 1 into a rough surface, the gap layer 7 is bitten into this rough surface and is firmly held by mechanical fitting force, preventing peeling and improving durability. can be done. In addition, a coating film forming agent is applied to the inner surface of the mouthpiece prototype body 1.
By applying a surface treatment agent (primer) made of a silane coupling agent, a solvent, a catalyst, etc., it is possible to firmly hold the interstitial layer 7 on the mouthpiece original body l. As an example of this gap N7, a rubber hardness of about 50 is used.

The mouthpiece thus formed is used by fitting into the upper jaw teeth. At this time, if the hardness of the anterior tooth side occlusal part 2a is made smaller than the hardness of the molar side occlusal part 2b as described above, when the maxillary teeth and the mandibular teeth are strongly occluded, the anterior tooth side will also be the 8th part side. Similarly, each of the occlusal parts 2a, 2b can be elastically deformed substantially uniformly, physiological occlusal force can be distributed over the entire dentition, and the temporomandibular joint can be protected.

Note that the rubber-like elastic material used for molding the mouthpiece prototype body 1 is not limited to silicone rubber;
In addition, thermoplastic resins or thermosetting resins can be used. Furthermore, the anterior tooth side occlusal portion 2a and the molar side occlusal portion 2b of the mouthpiece prototype body 1 may be formed to have approximately uniform wall thickness. In this case, the gap layer 7 of the anterior tooth side occlusal portion 2a is It is sufficient to apply the coating to a thickness thicker than that of the gap layer 7 of the lateral occlusal part 2b, so that the thickness of the anterior occlusal part as a whole is approximately twice that of the molar occlusal part. The outer surface of the body 1 may also be formed to have a rough surface similar to the inner surface.

Effects of the Invention As is clear from the above explanation, according to the present invention, the occlusal part, the outer wall, and the inner wall are made of a rubber-like elastic material with a size that can fit gently into the upper jaw teeth of a standard dentition. The occlusal portion, the outer wall, and the inner wall are formed into rough surfaces.

Therefore, using this mouthpiece prototype, a paste-like rubber-like elastic material is applied to the inner surface of the mouthpiece to form a gap layer, and this gap layer is hardened after being adapted to the shape of the user's own maxillary teeth. This makes it possible to easily and inexpensively manufacture a mouthpiece that fits the user's own maxillary teeth.

[Brief explanation of drawings]

1 to 4 show an embodiment of the mouthpiece prototype body of the present invention, FIG. 1 is a perspective view of the mouthpiece prototype body, FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1, Figure 3 is m in Figure 1.
4 is a sectional view taken along the line IV-rV in FIG. Figures 7 to 7 show the state in which the interstitial layer is applied to the inner surface of the mouthpiece original body, and are sectional views similar to Figures 2, 3, and 4, respectively, and Figure 8 is the finished mouthpiece. and the seventh
It is a sectional view similar to the figure. 1... Mouthpiece original body, 2... Occlusal part, 2a.
・・Anterior tooth side occlusal part, 2b ・・Molar side occlusal part, 3・
...Outer wall, 4...Inner wall, 7... Completion layer.

Claims (4)

[Claims] (1) The occlusal part, the outer wall, and the inner wall are integrally provided with a size that can fit gently into the maxillary teeth of a standard dentition using a rubber-like elastic material, and the occlusal part, the outer wall, and the inner wall are integrally provided. A mouthpiece prototype body characterized by having a rough inner surface. (2) In the occlusal area, the wall thickness on the anterior tooth side is approximately 2 times the wall thickness on the molar side.
The original mouthpiece body according to claim 1, which is formed to double in size. (3) The mouthpiece prototype according to claim 2, wherein the occlusal part is formed such that the hardness on the front tooth side is smaller than the hardness on the molar side. (4) The mouthpiece prototype according to any one of claims 1 to 3, wherein the rubber-like elastic material is silicone rubber.