WO2021157723A1 - マウスピースジスク製造方法およびマウスピースジスク - Google Patents
マウスピースジスク製造方法およびマウスピースジスク Download PDFInfo
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- WO2021157723A1 WO2021157723A1 PCT/JP2021/004423 JP2021004423W WO2021157723A1 WO 2021157723 A1 WO2021157723 A1 WO 2021157723A1 JP 2021004423 W JP2021004423 W JP 2021004423W WO 2021157723 A1 WO2021157723 A1 WO 2021157723A1
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- WIPO (PCT)
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- resin
- mouthpiece
- resin layer
- base material
- mold
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B71/00—Games or sports accessories not covered in groups A63B1/00 - A63B69/00
- A63B71/08—Body-protectors for players or sportsmen, i.e. body-protecting accessories affording protection of body parts against blows or collisions
Definitions
- the present invention relates to a mouthpiece disc manufacturing method and a mouthpiece disc.
- mouthpieces for the purpose of orthodontic teeth and those for the purpose of preventing snoring and bruxism.
- the conventional disc has a hard material and a soft material bonded with an adhesive or the like in order to form a two-layer structure or a three-layer structure, there is a concern that harmful substances contained in the adhesive may affect the human body. was there. In addition, there is also a problem that the one using the adhesive is easily peeled off. In addition, the use of adhesives is costly and increases the thickness of the disc, so the choice of materials and thicknesses for multi-layer mouthpieces on the market has not always been widespread.
- an object of the present invention is to provide a method for manufacturing a mouthpiece disc that does not use an adhesive having a two-layer structure or a three-layer structure, and a mouthpiece disc.
- the method for producing a mouthpiece disc of the present invention includes a first surface modification step of physically or chemically surface-treating a first surface of a base material made of a first resin. It is characterized by having a second resin layer molding step of supplying a second resin to the first surface to form a second resin layer.
- dry etching can be used for the surface treatment in the first surface modification step.
- the base material is placed in a mold, the second resin is supplied into the mold, and the second resin layer is molded on the first surface. It may be a thing.
- dry etching can be used for the surface treatment in the second surface modification step.
- the base material is placed in a mold, the third resin is supplied into the mold, and the third resin layer is molded on the second surface. It may be a thing.
- the mouthpiece disc of the present invention is made of a first resin, a base material having a fine concavo-convex structure on the first surface, and a second resin, and is a second resin bonded to the first surface.
- Layer and It is characterized by having.
- the total thickness of the base material and the second resin layer is 1 mm or less.
- the base material has a fine concavo-convex structure on a second surface which is a surface opposite to the first surface, is made of a third resin, and is bonded to the second surface. It may be provided with a resin layer.
- the present invention can provide a method for manufacturing a mouthpiece disc that does not use an adhesive and a mouthpiece disc that does not use an adhesive.
- the mouthpiece disc manufacturing method of the present invention is mainly composed of a first surface modification step and a second resin layer molding step.
- the first surface modification step is a step of physically or chemically applying a surface treatment to any one surface of the base material 1 made of the first resin (hereinafter referred to as the first surface 11). ..
- a fine concavo-convex structure can be formed on the first surface 11, functional groups can be generated, the wettability of the first surface 11 can be improved, and pollutants can be removed.
- the adhesiveness between the first surface 11 and the second resin can be improved.
- any surface treatment can be used as long as the adhesiveness between the first surface 11 and the second resin can be improved.
- dry etching may be used. Can be done.
- dry etching includes reactive gas etching that exposes the material to the reaction gas and reactive ion etching that ionizes and radicalizes the gas (N 2 , O 2 , Ar, H 2 , CO 2, etc.) by plasma. There is.
- the second resin layer molding step is a step of supplying the second resin to the first surface 11 to mold the second resin layer 2.
- the first resin is mainly for forming a shape-holding portion that holds the shape of the mouthpiece
- the second resin is mainly for protecting the oral cavity and teeth.
- the first resin may be any resin that can maintain the shape of the mouthpiece without being deformed even when it is strongly occluded when the mouthpiece is used, and is at least higher than the second resin. Those having hardness can be used. Moreover, since it is used in the oral cavity, a non-toxic first resin is used. As such a resin, for example, polyethylene terephthalate (PET) or polycyclohexylene dimethylene terephthalate (PCT) can be used. In particular, from the viewpoint of aesthetics, glycol-modified polyethylene terephthalate (PETG) and glycol-modified polycyclohexylene dimethylene terephthalate (PCTG) are preferable because they are transparent and do not whiten by heating or the like.
- PET polyethylene terephthalate
- PCT polycyclohexylene dimethylene terephthalate
- the second resin may be any resin as long as it can protect the oral cavity and teeth, and is a resin softer than the first resin, absorbs impact and the like, and absorbs impact and the like, and in the oral cavity and teeth. It is preferable that the material has elasticity or viscoelasticity so as to protect the material. Moreover, since it is used in the oral cavity, a non-toxic second resin is used. Specifically, as such a resin, a thermoplastic resin having a low melting point such as a polyolefin-based elastomer, ethylene vinyl acetate (EVA), or a polyurethane-based elastomer can be used.
- a thermoplastic resin having a low melting point such as a polyolefin-based elastomer, ethylene vinyl acetate (EVA), or a polyurethane-based elastomer can be used.
- the base material 1 serves as a shape holding portion that retains its shape when molded into a mouthpiece.
- the shape of the base material 1 may be plate-shaped or sheet-shaped, and may be any size as long as it is suitable for molding the mouthpiece.
- the diameter can be 120 to 125 mm or the like.
- the thickness of the base material 1 may be any size as long as it is suitable for molding or using the mouthpiece.
- the thickness may be 0.1 to 2.0 mm.
- any method may be used as long as the second resin can be supplied to the first surface 11 to form the second resin layer 2.
- the base material 1 is molded into the mold 5.
- the second resin layer 2 may be formed on the first surface 11 of the base material 1 by arranging the resin in the mold 5 and supplying the second resin to the mold 5.
- a mold 5 composed of an upper mold 5a and a lower mold 5b is prepared.
- the mold 5 a general mold used for injection molding or insert molding can be used.
- the base material 1 is placed on the lower mold 5b.
- the upper mold 5a is fitted with the lower mold 5b to form a gap 51 on the first surface 11 side of the base material 1.
- the size of the gap 51 can be changed depending on the position of the lower mold 5b with respect to the upper mold 5a, whereby the thickness of the second resin layer 2 can be adjusted.
- FIG. 2A a mold 5 composed of an upper mold 5a and a lower mold 5b is prepared.
- the mold 5 a general mold used for injection molding or insert molding can be used.
- the base material 1 is placed on the lower mold 5b.
- the upper mold 5a is fitted with the lower mold 5b to form a gap 51 on the first surface 11 side of the base material 1.
- the size of the gap 51 can be changed depending on the position of the lower mold 5b with respect to the upper mold 5
- a second resin having fluidity is supplied to the gap 51 via the supply flow path 52 formed in the upper mold 5a, and the second resin having a predetermined thickness is supplied.
- Layer 2 is formed. After the second resin layer 2 has solidified, the upper mold 5a is removed as shown in FIG. 2 (e), and finally, the mouthpiece disc is taken out as shown in FIG. 2 (f).
- the mouthpiece disc of the present invention can be produced.
- the mouthpiece disc is made of a first resin, a base material 1 having a fine uneven structure and a functional group contributing to a chemical bond on the first surface 11, and a second resin. Therefore, it has a two-layer structure of the second resin layer 2 bonded to the first surface 11.
- the mouthpiece disc having a two-layer structure may have any thickness as long as it can be used as a mouthpiece, but since no adhesive is used, for example, the total thickness of the base material 1 and the second resin layer 2 is 3 mm or less. Those having a thickness of 1.5 mm or less, those having a thickness of 1 mm or less can be produced, and various thickness options can be provided.
- the method for producing a mouthpiece disc of the present invention may further include a second surface modification step and a third resin layer molding step.
- the second surface modification step is a step of physically or chemically applying a surface treatment to the second surface 12 which is the surface opposite to the first surface 11 of the base material 1.
- a fine concavo-convex structure can be formed on the second surface 12, functional groups can be generated, the wettability of the second surface 12 can be improved, and contaminants can be removed.
- the adhesiveness between the second surface 12 and the third resin can be improved.
- any surface treatment can be used as long as the adhesiveness between the second surface and the third resin can be improved, and for example, dry etching may be used.
- dry etching includes reactive gas etching that exposes the material to the reaction gas and reactive ion etching that ionizes and radicalizes the gas (N 2 , O 2 , Ar, H 2 , CO 2, etc.) by plasma. There is.
- the third resin layer molding step is a step of supplying the third resin to the second surface 12 to mold the third resin layer 3.
- the third resin may be any resin as long as it can protect the oral cavity and teeth, and is a resin softer than the first resin, absorbs impact and the like, and absorbs impact and the like, and in the oral cavity and teeth. It is preferable that the material has elasticity or viscoelasticity so as to protect the material. Moreover, since it is used in the oral cavity, a non-toxic third resin is used. Specifically, as such a resin, a thermoplastic resin having a low melting point such as a polyolefin-based elastomer, ethylene vinyl acetate (EVA), or a polyurethane-based elastomer can be used. As the third resin, the same resin as the second resin may be used, or a different resin may be used.
- any method may be used as long as the third resin can be supplied to the second surface 12 to mold the third resin layer 3.
- the third resin layer molding step may be used.
- the base material 1 on which the second resin layer 2 is formed is arranged in the mold 5, the third resin is supplied to the mold 5, and the second resin layer 2 is placed on the first surface 11 of the base material 1. It may be molded.
- a mold 5 composed of an upper mold 5a and a lower mold 5b is prepared.
- the mold 5 a general mold used for injection molding or insert molding can be used, and the mold used in the second resin layer forming step can also be used.
- the base material 1 on which the second resin layer 2 is formed is placed on the lower mold 5b.
- the upper mold 5a is fitted with the lower mold 5b to form a gap 53 on the second surface 12 side of the base material 1.
- the size of the gap 53 can be changed depending on the position of the lower mold 5b with respect to the upper mold 5a, whereby the thickness of the third resin layer 3 can be adjusted.
- a third resin having fluidity is supplied to the gap 53 via the supply flow path 52 formed in the upper mold 5a, and the third resin having a predetermined thickness is supplied.
- Form layer 3 After the third resin layer 3 has solidified, the upper mold 5a is removed as shown in FIG. 4 (e), and finally, the mouthpiece disc is taken out as shown in FIG. 4 (f).
- the mouthpiece disc of the present invention can be produced.
- the mouthpiece disc is composed of a first resin, and has a base material 1 having a fine uneven structure and a functional group contributing to a chemical bond on the first surface 11 and the second surface 12.
- a three-layer structure consisting of a second resin layer 2 composed of a second resin and bonded to the first surface 11 and a third resin layer 3 composed of a third resin and bonded to the second surface 12.
- the mouthpiece disc having a three-layer structure may have any thickness as long as it can be used as a mouthpiece, but since no adhesive is used, for example, the base material 1, the second resin layer 2 and the third resin layer are combined. It is possible to manufacture a product having a thickness of 4.5 mm or less, a product having a thickness of 2.5 mm or less, and a product having a thickness of 2.3 mm or less, and it is possible to provide various thickness options.
- Base material 2 Second resin layer 3: Third resin layer 5: Mold 5a: Upper mold 5b: Lower mold 11: First surface 12: Second surface 51: Void 52: Supply channel 53: Void
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- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
を具備することを特徴とする。
2:第2樹脂層
3:第3樹脂層
5:金型
5a:上金型
5b:下金型
11:第1の表面
12:第2の表面
51:空隙
52:供給流路
53:空隙
Claims (9)
- マウスピースジスクの製造方法であって、
第1の樹脂からなる基材の第1の表面に物理的又は化学的な表面処理を施す第1表面改質工程と、
前記第1の表面に第2の樹脂を供給して第2樹脂層を成形する第2樹脂層成形工程と、
を有することを特徴とするマウスピースジスク製造方法。 - 前記第1表面改質工程の前記表面処理は、ドライエッチングであることを特徴とする請求項1記載のマウスピースジスク製造方法。
- 前記第2樹脂層成形工程は、前記基材を金型内に配置し、当該金型内に前記第2の樹脂を供給して、前記第1の表面に第2樹脂層を成形するものであることを特徴とする請求項1又は2記載のマウスピースジスク製造方法。
- 前記第1の表面の反対側の面である第2の表面に物理的又は化学的な表面処理を施す第2表面改質工程と、
前記第2の表面に第3の樹脂を供給して第3樹脂層を成形する第3樹脂層成形工程と、
を有することを特徴とする請求項1ないし3のいずれかに記載のマウスピースジスク製造方法。 - 前記第2表面改質工程の前記表面処理は、ドライエッチングであることを特徴とする請求項4記載のマウスピースジスク製造方法。
- 前記第3樹脂層成形工程は、前記基材を金型内に配置し、当該金型内に前記第3の樹脂を供給して、前記第2の表面に第3樹脂層を成形するものであることを特徴とする請求項4又は5記載のマウスピースジスク製造方法。
- 第1の樹脂からなり、第1の表面に微細凹凸構造を有する基材と、
第2の樹脂からなり、前記第1の表面に接合された第2樹脂層と、
を具備することを特徴とするマウスピースジスク。 - 前記基材と前記第2樹脂層を合わせた厚みが1mm以下であることを特徴とする請求項7記載のマウスピースジスク。
- 前記基材は、前記第1の表面の反対側の面である第2の表面に微細凹凸構造を有し、
第3の樹脂からなり、前記第2の表面に接合された第3樹脂層を具備することを特徴とする請求項7又は8記載のマウスピースジスク。
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CN202180010759.6A CN115209959A (zh) | 2020-02-07 | 2021-02-05 | 嘴件盘制造方法及嘴件盘 |
JP2021576199A JPWO2021157723A1 (ja) | 2020-02-07 | 2021-02-05 |
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Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0274274A (ja) * | 1988-09-08 | 1990-03-14 | Sunstar Inc | マウスピース |
JP2010075644A (ja) * | 2008-09-26 | 2010-04-08 | Shinya Kondo | 軟化時に側面がへたらない熱湯軟化式マウスピース。 |
JP2012051955A (ja) * | 2010-08-31 | 2012-03-15 | Tokuyama Dental Corp | エチレン−酢酸ビニル共重合体とシリコーン樹脂との接着剤 |
JP2012061193A (ja) * | 2010-09-17 | 2012-03-29 | Shofu Inc | マウスガード用熱可塑性シート |
US20120260924A1 (en) * | 2011-04-15 | 2012-10-18 | Foster Jeff A | Mouthguard |
JP2014012164A (ja) * | 2008-06-19 | 2014-01-23 | Bite Tech Inc | 主コネクタを有する口腔内装置および製造のための方法 |
US20140290669A1 (en) * | 2012-12-18 | 2014-10-02 | Anthony Quoc Ngo | Custom Mouthguard |
CN109789330A (zh) * | 2016-03-30 | 2019-05-21 | P3竞技股份有限公司 | 气道和氧气提升咬嘴的增材打印 |
-
2021
- 2021-02-05 CN CN202180010759.6A patent/CN115209959A/zh active Pending
- 2021-02-05 WO PCT/JP2021/004423 patent/WO2021157723A1/ja active Application Filing
- 2021-02-05 JP JP2021576199A patent/JPWO2021157723A1/ja active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0274274A (ja) * | 1988-09-08 | 1990-03-14 | Sunstar Inc | マウスピース |
JP2014012164A (ja) * | 2008-06-19 | 2014-01-23 | Bite Tech Inc | 主コネクタを有する口腔内装置および製造のための方法 |
JP2010075644A (ja) * | 2008-09-26 | 2010-04-08 | Shinya Kondo | 軟化時に側面がへたらない熱湯軟化式マウスピース。 |
JP2012051955A (ja) * | 2010-08-31 | 2012-03-15 | Tokuyama Dental Corp | エチレン−酢酸ビニル共重合体とシリコーン樹脂との接着剤 |
JP2012061193A (ja) * | 2010-09-17 | 2012-03-29 | Shofu Inc | マウスガード用熱可塑性シート |
US20120260924A1 (en) * | 2011-04-15 | 2012-10-18 | Foster Jeff A | Mouthguard |
US20140290669A1 (en) * | 2012-12-18 | 2014-10-02 | Anthony Quoc Ngo | Custom Mouthguard |
CN109789330A (zh) * | 2016-03-30 | 2019-05-21 | P3竞技股份有限公司 | 气道和氧气提升咬嘴的增材打印 |
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CN115209959A (zh) | 2022-10-18 |
JPWO2021157723A1 (ja) | 2021-08-12 |
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