JPH0561937B2 - - Google Patents
Info
- Publication number
- JPH0561937B2 JPH0561937B2 JP61246046A JP24604686A JPH0561937B2 JP H0561937 B2 JPH0561937 B2 JP H0561937B2 JP 61246046 A JP61246046 A JP 61246046A JP 24604686 A JP24604686 A JP 24604686A JP H0561937 B2 JPH0561937 B2 JP H0561937B2
- Authority
- JP
- Japan
- Prior art keywords
- mouthpiece
- elastic sheet
- sheet material
- teeth
- vinyl acetate
- 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.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 229920001169 thermoplastic Polymers 0.000 claims description 11
- 239000004416 thermosoftening plastic Substances 0.000 claims description 11
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- 238000000465 moulding Methods 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000013013 elastic material Substances 0.000 description 2
- -1 for example Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000007666 vacuum forming Methods 0.000 description 2
- FHVDTGUDJYJELY-UHFFFAOYSA-N 6-{[2-carboxy-4,5-dihydroxy-6-(phosphanyloxy)oxan-3-yl]oxy}-4,5-dihydroxy-3-phosphanyloxane-2-carboxylic acid Chemical compound O1C(C(O)=O)C(P)C(O)C(O)C1OC1C(C(O)=O)OC(OP)C(O)C1O FHVDTGUDJYJELY-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 208000028911 Temporomandibular Joint disease Diseases 0.000 description 1
- 206010043220 Temporomandibular joint syndrome Diseases 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 229940072056 alginate Drugs 0.000 description 1
- 229920000615 alginic acid Polymers 0.000 description 1
- 235000010443 alginic acid Nutrition 0.000 description 1
- 206010006514 bruxism Diseases 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002978 dental impression material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229920001684 low density polyethylene Polymers 0.000 description 1
- 239000004702 low-density polyethylene Substances 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 210000001738 temporomandibular joint Anatomy 0.000 description 1
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、前歯部位置を臼歯部位置より厚く設
定してなるマウスピースを簡易に作成することを
可能としたマウスピースの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a mouthpiece that makes it possible to easily create a mouthpiece in which the thickness is set thicker at the front teeth than at the molars.
従来、マウスピースはスポーツ用として外力か
ら顎骨、歯牙、口中を保護し、又は医学用として
歯ぎしりの防止、顎関節症の治療等に用いられて
いる。一般にアルジネート印象材等の歯科用印象
材を用いて、対象者の歯牙の印象を採得し、歯牙
の石膏模型を作成し、この模型を用いて熱可塑性
を有するゴム状弾性材の厚み１〜３mm程度の平板
を加熱後軟化させ、真空成形によりマウスピース
が製作されている。このゴム状弾性材の厚みは全
体が同じ厚みの平板を用いている為、その成形さ
れたマウスピースは、前歯部、臼歯部共に同じ厚
みであるか、又は前歯部が臼歯部より尖つた状態
であるため、その成形時に前歯部部分が薄く成形
され、咬合時には臼歯部の咬合力が前歯部に比べ
非常に大きくなる傾向にある。
Conventionally, mouthpieces have been used for sports to protect jawbones, teeth, and the inside of the mouth from external forces, or for medical purposes such as preventing bruxism and treating temporomandibular joint disorders. Generally, an impression of the subject's teeth is taken using a dental impression material such as alginate impression material, a plaster model of the tooth is created, and this model is used to make a thermoplastic rubber-like elastic material with a thickness of 1 to 100 ml. Mouthpieces are manufactured by heating and softening a flat plate of approximately 3 mm and vacuum forming it. Since this rubber-like elastic material is made from a flat plate with the same thickness throughout, the molded mouthpiece will either have the same thickness in both the front and molar areas, or the front teeth will be more pointed than the molar areas. Therefore, during molding, the anterior teeth are formed thinner, and during occlusion, the occlusal force on the molars tends to be much greater than on the anterior teeth.
しかし、通常の咬合においては、咬合直前の上
下顎の前歯部間の空間は臼歯部間の空間の約２倍
程度あるため、咬合時には臼歯部の咬合力が前歯
部に比べて大きくなり、マウスピース装着時の方
が顎骨や顎関節に歪を生じるという問題点がある
ために、前歯部のマウスピース厚みを臼歯部位置
のマウスピース厚みよりも大とするようなマウス
ピースの製造方法の出現が望まれている。
However, in normal occlusion, the space between the front teeth of the upper and lower jaws immediately before occlusion is about twice the space between the molars, so during occlusion, the biting force on the molars is greater than that on the front teeth, causing the mouse to bite. Due to the problem that distortion occurs in the jawbone and temporomandibular joint when the piece is attached, a method of manufacturing a mouthpiece has been developed in which the thickness of the mouthpiece at the front teeth is greater than the thickness at the molars. is desired.
前記本発明の目的を達成する為に、本発明では
一端から他端にかけて厚みを厚く設定してなる熱
可塑性弾性シート材を軟化状態のもとマウスピー
ス着用者の歯牙印象模型で押圧して歯牙形状を転
写し、前歯部位置を臼歯部位置より厚く設定して
なるマウスピースを作成することを特徴とするマ
ウスピースの製造方法を提供せんとするものであ
る。
In order to achieve the above object of the present invention, in the present invention, a thermoplastic elastic sheet material having a thicker thickness from one end to the other end is pressed with a tooth impression model of a mouthpiece wearer in a softened state to form a tooth. It is an object of the present invention to provide a method for manufacturing a mouthpiece, which is characterized in that the shape is transferred and a mouthpiece is created in which the front teeth are set thicker than the molars.
以上の如く、本発明にかかるマウスピースの製
造方法は、一端から他端にかけ厚みを厚く設定し
てなる熱可塑性弾性シート材を軟化状態のもとマ
ウスピース着用者の歯牙印象模型で押圧して成形
してなるものであるので、成形されたマウスピー
スの前歯部位置の厚みは臼歯部位置の厚みよりも
厚く設定することが可能となるのである。
As described above, the method for manufacturing a mouthpiece according to the present invention involves pressing a thermoplastic elastic sheet material, which is thickened from one end to the other end, with a tooth impression model of a mouthpiece wearer in a softened state. Since it is formed by molding, it is possible to set the thickness of the molded mouthpiece at the front tooth portion to be thicker than the thickness at the molar portion.
本発明の詳細を更に実施例にもとづき説明す
る。即ち、本発明にかかるマウスピースの製造方
法は、まず一端から他端にかけ厚みを厚く設定し
てる熱可塑性弾性シート材を用い、この弾性シー
ト材を加熱して軟化状態のもとで用いることを前
提としている。ここに、熱可塑性弾性シート材と
しては、例えばエチレン−酢酸ビニル共重合体、
低密度ポリエチレン、ポリプロピレン、塩化ビニ
ル、フツ素樹脂等が用いられるが酢酸ビニルを含
有するエチレン−酢酸ビニル共重合体樹脂を用い
ることが好ましいといえる。とりわけ、酢酸ビニ
ルの含有量が12〜33重量％含有せしめたエチレン
−酢酸ビニル共重合体樹脂は、その成形性、柔軟
性並びに弾力性の点において成形されたマウスピ
ースは着用者に好ましい特性を与えるものであ
る。即ち、酢酸ビニルをエチレン−酢酸ビニル共
重合体に含有せしめることにより、このエチレン
−酢酸ビニル共重合体の軟化点を低下させ、成形
性を良好にし、且つ柔軟性を与え、その添加量に
よりエチレン−酢酸ビニル共重合体の持つ弾力性
を維持して全体として成形性、柔軟性、弾力性の
点で好ましいマウスピース成形用材料が提供され
るのである。そして本発明におけるマウスピース
の製造方法においては、これら熱可塑性弾性シー
ト材を、例えば第１図〜第３図で示す如きシート
片に成形しておき、このシート片を加熱して軟化
状態のもとで、次工程の成形をなしてマウスピー
スを得るものである。第１図の熱可塑性弾性シー
ト材１は図例の如く、一端２から他端３に向つて
直線的に、その厚みが厚くされたものであり、第
２図の弾性シート材４はその表面５を曲線的に厚
くし、又第３図の弾性シート材６は、階段状７に
厚く設定したものである。即ち、これらの第１図
〜第３図で例示された弾性シート材１，４，６
は、それぞれ一端から他端にかけて厚みを厚く設
定してなる状態のもので、この弾性シート材１，
４，６の厚肉側を前歯部位置に、又薄肉側を臼歯
部位置に設定してマウスピース着用者の歯牙印象
模型を用いて真空成形等で、その歯牙形状を転写
成形することにより、前歯部位置を臼歯部位置よ
り厚く設定してなるマウスピースを得ることがで
きるのである。このようなマウスピースの製造方
法により、前記の如き、前歯部側を厚く、また臼
歯部側を薄く設定したマウスピースが簡易且つ迅
速に成形しうるものである。そしてその弾性シー
ト材として、酢酸ビニルを12〜33重量％含有せし
めた低軟化点のエチレン−酢酸ビニル共重合体樹
脂を用いることにより、特定使用者専用のマウス
ピースを作成する際の、成形性を良好にすること
ができるとともに成形されたマウスピースに適切
な柔軟性と弾力性を与えることもできるものであ
る。
The details of the present invention will be further explained based on examples. That is, the method for manufacturing a mouthpiece according to the present invention involves first using a thermoplastic elastic sheet material that is thicker from one end to the other, and heating this elastic sheet material to soften it. It is a premise. Here, as the thermoplastic elastic sheet material, for example, ethylene-vinyl acetate copolymer,
Although low-density polyethylene, polypropylene, vinyl chloride, fluororesin, etc. are used, it is preferable to use an ethylene-vinyl acetate copolymer resin containing vinyl acetate. In particular, an ethylene-vinyl acetate copolymer resin containing 12 to 33% by weight of vinyl acetate provides a molded mouthpiece with favorable characteristics for the wearer in terms of moldability, flexibility, and elasticity. It is something to give. That is, by incorporating vinyl acetate into an ethylene-vinyl acetate copolymer, the softening point of the ethylene-vinyl acetate copolymer is lowered, good moldability is achieved, and flexibility is imparted. - A mouthpiece molding material that maintains the elasticity of the vinyl acetate copolymer and is preferable overall in terms of moldability, flexibility, and elasticity is provided. In the mouthpiece manufacturing method of the present invention, these thermoplastic elastic sheet materials are formed into sheet pieces as shown in FIGS. 1 to 3, for example, and this sheet piece is heated to soften it. Then, the next step is molding to obtain a mouthpiece. As shown in the example, the thermoplastic elastic sheet material 1 shown in FIG. 1 is thickened linearly from one end 2 to the other end 3, and the elastic sheet material 4 shown in FIG. 5 is thickened in a curved manner, and the elastic sheet material 6 in FIG. 3 is set thick in a stepped shape 7. That is, the elastic sheet materials 1, 4, 6 illustrated in FIGS. 1 to 3
The elastic sheet materials 1, 1 and 2 are thicker from one end to the other, respectively.
By setting the thick side of Nos. 4 and 6 at the front tooth position and the thin side at the molar position, and transferring the shape of the tooth using vacuum forming or the like using a tooth impression model of the mouthpiece wearer, This makes it possible to obtain a mouthpiece in which the front teeth are thicker than the molars. By using such a mouthpiece manufacturing method, a mouthpiece having a thicker front tooth side and a thinner molar side can be easily and quickly formed. By using a low softening point ethylene-vinyl acetate copolymer resin containing 12 to 33% by weight of vinyl acetate as the elastic sheet material, moldability is improved when creating mouthpieces exclusively for specific users. It is possible to improve the quality of the molded mouthpiece, and also to give the molded mouthpiece appropriate flexibility and elasticity.
本発明は、以上の如く一端から他端にかけて厚
みを厚く設定してなる熱可塑性弾性シート材を軟
化状態のもとマウスピース着用者の歯牙印象模型
で押圧して歯牙形状を転写し、前歯部位置を臼歯
部位置より厚く設定してなるマウスピースを作成
することを特徴とするものであるので、前歯部位
置を臼歯部位置より厚く設定してなるマウスピー
スを作成するのに、熱可塑性弾性シート材の厚み
を変化させた材料を用いることになり、その製造
が容易化され且つ上下歯牙間の間隔を正確に転写
させた使用感良好で歯牙並びに口中の保護を完全
になすマウスピースの製造方法が提供されるので
ある。
In the present invention, the thermoplastic elastic sheet material, which is thickened from one end to the other as described above, is pressed with a tooth impression model of a mouthpiece wearer in a softened state to transfer the shape of the teeth, and the shape of the teeth is transferred to the front teeth. Since the feature is to create a mouthpiece in which the position of the front teeth is set thicker than the position of the molars, thermoplastic elastic To manufacture a mouthpiece that is easy to manufacture by using a sheet material with varying thickness, accurately transfers the spacing between the upper and lower teeth, is comfortable to use, and completely protects the teeth and the inside of the mouth. A method is provided.
第１図は本発明において用いる熱可塑性弾性シ
ート材の第１実施例説明用斜視図、第２図は第２
実施例説明用斜視図、第３図は第３実施例説明用
斜視図である。
１，４，６……弾性シート材、２……一端、３
……他端、５……表面、７……階段状。
FIG. 1 is a perspective view for explaining the first embodiment of the thermoplastic elastic sheet material used in the present invention, and FIG.
FIG. 3 is a perspective view for explaining the third embodiment. 1, 4, 6...Elastic sheet material, 2...One end, 3
...Other end, 5...Surface, 7...Step-like.
Claims (1)
る熱可塑性弾性シート材を軟化状態のもとマウス
ピース着用者の歯牙印象模型で押圧して歯牙形状
を転写し、前歯部位置を臼歯部位置より厚く設定
してなるマウスピースを作成することを特徴とす
るマウスピースの製造方法。 ２ 弾性シート材として、酢酸ビニルを12〜33重
量％含有せしめたエチレン−酢酸ビニル共重合体
を利用してなる特許請求の範囲第１項記載のマウ
スピースの製造方法。[Claims] 1. A thermoplastic elastic sheet material having a thicker thickness from one end to the other end is pressed with a tooth impression model of a mouthpiece wearer in a softened state to transfer the shape of the teeth to the front teeth. A method for manufacturing a mouthpiece, characterized in that the mouthpiece is made thicker than the molar position. 2. The method for manufacturing a mouthpiece according to claim 1, which uses an ethylene-vinyl acetate copolymer containing 12 to 33% by weight of vinyl acetate as the elastic sheet material.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61246046A JPS6399857A (en) | 1986-10-15 | 1986-10-15 | Production of mouthpiece |
| EP87114961A EP0265771B1 (en) | 1986-10-15 | 1987-10-13 | Mouthpiece and method for producing the same |
| DE8787114961T DE3770239D1 (en) | 1986-10-15 | 1987-10-13 | MOUTHPIECE AND METHOD FOR PRODUCING THIS. |
| US07/108,677 US4920984A (en) | 1986-10-15 | 1987-10-15 | Mouthpiece and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61246046A JPS6399857A (en) | 1986-10-15 | 1986-10-15 | Production of mouthpiece |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6399857A JPS6399857A (en) | 1988-05-02 |
| JPH0561937B2 true JPH0561937B2 (en) | 1993-09-07 |
Family
ID=17142659
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61246046A Granted JPS6399857A (en) | 1986-10-15 | 1986-10-15 | Production of mouthpiece |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6399857A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0428381A (en) * | 1990-05-24 | 1992-01-30 | Mitsubishi Petrochem Co Ltd | Mouthpiece |
| WO2006009745A1 (en) * | 2004-06-18 | 2006-01-26 | Dentsply International Inc. | Plastic sheets for thermoforming dental products |
| JP4901761B2 (en) * | 2005-02-16 | 2012-03-21 | デンツプライ インターナショナル インコーポレーテッド | Thermoformed plastic type II |
| EP3427704B1 (en) | 2016-03-08 | 2021-04-07 | Mitsui Chemicals, Inc. | Mouthpiece |
-
1986
- 1986-10-15 JP JP61246046A patent/JPS6399857A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6399857A (en) | 1988-05-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| LAPS | Cancellation because of no payment of annual fees |