JP2012192002A - Drug delivery mouthpiece and dental drug delivery device - Google Patents
Drug delivery mouthpiece and dental drug delivery device Download PDFInfo
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- JP2012192002A JP2012192002A JP2011056964A JP2011056964A JP2012192002A JP 2012192002 A JP2012192002 A JP 2012192002A JP 2011056964 A JP2011056964 A JP 2011056964A JP 2011056964 A JP2011056964 A JP 2011056964A JP 2012192002 A JP2012192002 A JP 2012192002A
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- 238000012377 drug delivery Methods 0.000 title claims abstract description 35
- 239000000126 substance Substances 0.000 claims abstract description 80
- 229940079593 drug Drugs 0.000 claims abstract description 18
- 239000003814 drug Substances 0.000 claims abstract description 18
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 210000004195 gingiva Anatomy 0.000 abstract description 6
- 239000000243 solution Substances 0.000 description 68
- 239000007788 liquid Substances 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 239000008155 medical solution Substances 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 2
- 210000004513 dentition Anatomy 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000036346 tooth eruption Effects 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- GHXZTYHSJHQHIJ-UHFFFAOYSA-N Chlorhexidine Chemical compound C=1C=C(Cl)C=CC=1NC(N)=NC(N)=NCCCCCCN=C(N)N=C(N)NC1=CC=C(Cl)C=C1 GHXZTYHSJHQHIJ-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 1
- 229960003260 chlorhexidine Drugs 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005115 demineralization Methods 0.000 description 1
- 230000002328 demineralizing effect Effects 0.000 description 1
- 208000002925 dental caries Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- FGBJXOREULPLGL-UHFFFAOYSA-N ethyl cyanoacrylate Chemical compound CCOC(=O)C(=C)C#N FGBJXOREULPLGL-UHFFFAOYSA-N 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 208000007565 gingivitis Diseases 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 230000007721 medicinal effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 208000028169 periodontal disease Diseases 0.000 description 1
- 230000002572 peristaltic effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920005668 polycarbonate resin Polymers 0.000 description 1
- 239000004431 polycarbonate resin Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 229920005749 polyurethane resin Polymers 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 210000003296 saliva Anatomy 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
【課題】 歯や歯肉に対して適用される薬液を、所望する期間、手間をかけることなく、その表面に供給することができるドラッグデリバリーマウスピースおよび歯科用ドラッグデリバリー装置を提供すること。
【解決手段】 本発明のドラッグデリバリーマウスピースは、マウスピースの左右いずれかの側に、マウスピースを装着した際に薬液をマウスピースの内表面と歯乃至歯肉の表面の間に供給するための薬液供給孔が設けられているとともに、他方の側に、マウスピースの内表面と歯乃至歯肉の表面の間に供給された薬液を排出するための薬液排出孔が設けられており、かつ、薬液供給孔には薬液供給チューブが接続されているとともに、薬液排出孔には薬液排出チューブが接続されており、薬液供給チューブから薬液を供給して薬液排出チューブから薬液を排出するように構成されてなることを特徴とする。
【選択図】 図１PROBLEM TO BE SOLVED: To provide a drug delivery mouthpiece and a dental drug delivery device capable of supplying a chemical solution applied to teeth and gums to a surface thereof without taking time and effort for a desired period.
The drug delivery mouthpiece of the present invention is for supplying a drug solution between the inner surface of a mouthpiece and the surface of a tooth or gingiva when the mouthpiece is mounted on either the left or right side of the mouthpiece. A chemical solution supply hole is provided, and a chemical solution discharge hole for discharging the chemical solution supplied between the inner surface of the mouthpiece and the surface of the tooth or gingiva is provided on the other side, and the chemical solution A chemical solution supply tube is connected to the supply hole, and a chemical solution discharge tube is connected to the chemical solution discharge hole, and the chemical solution is supplied from the chemical solution supply tube and discharged from the chemical solution discharge tube. It is characterized by becoming.
[Selection] Figure 1
Description
本発明は、歯科領域で用いられる予防や治療のための薬液を、歯や歯肉に対して効果的に適用するためのドラッグデリバリーマウスピースおよび歯科用ドラッグデリバリー装置に関する。 The present invention relates to a drug delivery mouthpiece and a dental drug delivery device for effectively applying a drug solution for prevention and treatment used in a dental field to teeth and gums.
歯科領域においては、多くの場面で、う蝕予防に効果があるフッ化物液を歯の表面に塗布したり、歯肉炎などの歯周病を軽減・予防するためのクロルヘキシジン液を歯肉の表面に塗布したりする。しかしながら、歯や歯肉の表面に塗布された薬液は、唾液によって希釈されるので、その薬効は長続きしないし、薬液を誤飲すると健康に悪影響を及ぼす場合もある。そこで、患者の歯列に合わせて作製したマウスピースの内表面（歯や歯肉の表面に面する面）に薬液を塗布して患者に装着してもらい、唾液による薬液の希釈や薬液の誤飲を防いで薬液の効果を長時間、安全に維持する方法が提案されている（３ＤＳ：デンタル・ドラッグ・デリバリー・システム、非特許文献１）。この方法は、薬液の効果を長時間、安全に維持することができる優れた方法である。けれども、マウスピースの内表面に塗布された薬液は時間の経過とともに減少するので、その効果も次第に弱まる。従って、薬液の効果を回復させるためには、患者が装着しているマウスピースを取り外し、その内表面に再び薬液を塗布して患者に装着してもらう必要があり、手間がかかる。 In the dental field, in many situations, a fluoride solution that is effective in preventing dental caries is applied to the tooth surface, and a chlorhexidine solution is used to reduce or prevent periodontal diseases such as gingivitis. Or apply. However, since the medicinal solution applied to the surface of teeth and gums is diluted by saliva, the medicinal effect does not last long, and if the medicinal solution is accidentally swallowed, it may adversely affect health. Therefore, apply the drug solution to the inner surface of the mouthpiece prepared according to the patient's dentition (the surface that faces the surface of the teeth and gingiva) and have the patient wear it. Has been proposed (3DS: Dental Drug Delivery System, Non-Patent Document 1). This method is an excellent method that can safely maintain the effect of the chemical solution for a long time. However, since the chemical applied to the inner surface of the mouthpiece decreases with time, the effect is gradually weakened. Therefore, in order to recover the effect of the chemical solution, it is necessary to remove the mouthpiece worn by the patient, apply the chemical solution again to the inner surface thereof, and have the patient wear it.
そこで本発明は、歯や歯肉に対して適用される薬液を、所望する期間、手間をかけることなく、その表面に供給することができるドラッグデリバリーマウスピースおよび歯科用ドラッグデリバリー装置を提供することを目的とする。 Therefore, the present invention provides a drug delivery mouthpiece and a dental drug delivery device that can supply a chemical solution applied to teeth and gums to a surface thereof without taking time and effort for a desired period of time. Objective.
上記の点に鑑みてなされた本発明のドラッグデリバリーマウスピースは、請求項１記載の通り、マウスピースの左右いずれかの側に、マウスピースを装着した際に薬液をマウスピースの内表面と歯乃至歯肉の表面の間に供給するための薬液供給孔が設けられているとともに、他方の側に、マウスピースの内表面と歯乃至歯肉の表面の間に供給された薬液を排出するための薬液排出孔が設けられており、かつ、薬液供給孔には薬液供給チューブが接続されているとともに、薬液排出孔には薬液排出チューブが接続されており、薬液供給チューブから薬液を供給して薬液排出チューブから薬液を排出するように構成されてなることを特徴とする。
また、本発明の歯科用ドラックデリバリー装置は、請求項２記載の通り、請求項１記載のドラッグデリバリーマウスピースと、薬液をドラッグデリバリーマウスピースに供給するための薬液供給手段を少なくとも含んでなることを特徴とする。
The drug delivery mouthpiece of the present invention made in view of the above points, as described in claim 1, when the mouthpiece is attached to either the left or right side of the mouthpiece, the drug solution is applied to the inner surface of the mouthpiece and the teeth. Or a liquid supply hole for supplying a liquid between the surface of the gingiva and a liquid for discharging the liquid supplied between the inner surface of the mouthpiece and the surface of the tooth or gingiva on the other side The chemical solution supply tube is connected to the chemical solution supply hole, and the chemical solution discharge tube is connected to the chemical solution discharge hole. The chemical solution is supplied from the chemical solution supply tube and discharged. It is characterized by being comprised so that a chemical | medical solution may be discharged | emitted from a tube.
Moreover, the dental drug delivery device of the present invention comprises at least the drug delivery mouthpiece according to claim 1 and a drug solution supply means for supplying the drug solution to the drug delivery mouthpiece as described in claim 2. It is characterized by.
本発明によれば、歯や歯肉に対して適用される薬液を、所望する期間、手間をかけることなく、その表面に供給することができるドラッグデリバリーマウスピースおよび歯科用ドラッグデリバリー装置を提供することができる。 According to the present invention, it is possible to provide a drug delivery mouthpiece and a dental drug delivery device capable of supplying a drug solution applied to teeth and gums to a surface thereof without taking time and effort for a desired period of time. Can do.
以下、本発明のドラッグデリバリーマウスピースの詳細を、図面を参酌しながら説明する。 Hereinafter, the details of the drug delivery mouthpiece of the present invention will be described with reference to the drawings.
図１は、本発明のドラッグデリバリーマウスピースの一例の斜視図である。図１に示す本発明のドラッグデリバリーマウスピース１は、下顎に装着するものであり、例えば常法に従って採得した患者の歯列の石膏模型をもとに作製されたマウスピース２の向かって右側に、マウスピース２を装着した際に薬液をマウスピース２の内表面と歯や歯肉の表面の間に供給するための薬液供給孔３が設けられているとともに、向かって左側に、マウスピース２の内表面と歯や歯肉の表面の間に供給された薬液を排出するための薬液排出孔４が設けられており、かつ、薬液供給孔３には薬液供給チューブ５が接続されているとともに、薬液排出孔４には薬液排出チューブ６が接続されてなる。マウスピース２の材質としては、一般的なマウスピースの材質として知られているアクリル樹脂、ポリエステル樹脂、ポリカーボネート樹脂、ポリプロピレン樹脂、エチレンビニルアセテート樹脂などが挙げられる。また、薬液供給チューブ５と薬液排出チューブ６の材質としては、シリコーン樹脂、ポリ塩化ビニール樹脂、ポリプロピレン樹脂、ポリウレタン樹脂などが挙げられる。薬液供給孔３と薬液供給チューブ５の接続や、薬液排出孔４と薬液排出チューブ６の接続は、例えば合成樹脂接着剤（シアノアクリレート系接着剤など）を用いて行えばよい。 FIG. 1 is a perspective view of an example of the drug delivery mouthpiece of the present invention. A drug delivery mouthpiece 1 of the present invention shown in FIG. 1 is attached to the lower jaw. For example, a right side of a mouthpiece 2 made based on a plaster model of a patient's dentition obtained according to a conventional method. In addition, when the mouthpiece 2 is mounted, a chemical solution supply hole 3 is provided for supplying a chemical solution between the inner surface of the mouthpiece 2 and the surface of the teeth or gums. A chemical solution discharge hole 4 is provided for discharging the chemical solution supplied between the inner surface and the surface of the teeth and gums, and a chemical solution supply tube 5 is connected to the chemical solution supply hole 3, A chemical solution discharge tube 6 is connected to the chemical solution discharge hole 4. Examples of the material of the mouthpiece 2 include acrylic resin, polyester resin, polycarbonate resin, polypropylene resin, and ethylene vinyl acetate resin, which are known as general mouthpiece materials. Examples of the material of the chemical solution supply tube 5 and the chemical solution discharge tube 6 include silicone resin, polyvinyl chloride resin, polypropylene resin, and polyurethane resin. The connection between the chemical solution supply hole 3 and the chemical solution supply tube 5 and the connection between the chemical solution discharge hole 4 and the chemical solution discharge tube 6 may be performed using, for example, a synthetic resin adhesive (cyanoacrylate adhesive or the like).
図２と、図２のＡ−Ａ’断面図である図３に示すように、本発明のドラッグデリバリーマウスピース１は、下顎に装着した後、薬液供給チューブ５から薬液供給孔３を介して薬液をマウスピース２の内表面と歯や歯肉の表面の間に供給することができる。また、マウスピース２の内表面と歯や歯肉の表面の間に供給された薬液を、薬液排出孔４を介して薬液排出チューブ６から排出することができる。 2 and FIG. 3 which is a cross-sectional view taken along the line AA ′ of FIG. 2, the drug delivery mouthpiece 1 of the present invention is attached to the lower jaw, and then from the drug solution supply tube 5 through the drug solution supply hole 3. The chemical solution can be supplied between the inner surface of the mouthpiece 2 and the surface of the teeth or gums. Further, the chemical liquid supplied between the inner surface of the mouthpiece 2 and the surface of the teeth or gums can be discharged from the chemical liquid discharge tube 6 through the chemical liquid discharge hole 4.
なお、以上の説明は、下顎に装着する本発明のドラッグデリバリーマウスピースについてのものであるが、本発明のドラッグデリバリーマウスピースは上顎に装着するものであってもよい。 In addition, although the above description is about the drug delivery mouthpiece of this invention with which a lower jaw is mounted | worn, the drug delivery mouthpiece of this invention may be mounted | worn with an upper jaw.
本発明のドラッグデリバリーマウスピースを用いて歯や歯肉に対して適用される薬液は、薬液供給チューブから薬液供給孔を介してマウスピースの内表面と歯や歯肉の表面の間に供給することができ、かつ、薬液排出孔を介して薬液排出チューブから排出することができるものであればその種類は問わない。薬液は、供給と排出を絶えず行うことによって新鮮な薬液がマウスピースの内表面と歯や歯肉の表面の間を還流するようにしてもよいし、供給した後にマウスピースの内表面と歯や歯肉の表面の間に一定時間貯留させてから排出するようにしてもよい。薬液は、薬液供給手段を薬液供給チューブの上流に接続し、薬液が入った容器などから薬液をマウスピースに向かって押し込む態様で供給してもよいし、薬液供給手段を薬液排出チューブの下流に接続し、薬液が入った容器などから薬液排出チューブに至るまでの系内を陰圧にして薬液を引き込む態様で供給してもよい。いずれの供給方法もペリスタポンプなどのポンプを薬液供給手段として用いることで行うことができるが、マウスピースの辺縁部と歯や歯肉の表面の隙間から外部への薬液の漏洩を防ぐためには、薬液を上流から押し込む態様で供給する方法よりも、薬液を下流から引き込む態様で供給する方法が望ましい。なお、こうした薬液の漏洩をより効果的に防ぐためには、マウスピースの辺縁部が歯や歯肉の表面を押圧することでその封鎖性が高まるようにするのがよい。このような態様は、例えば石膏模型におけるマウスピースの辺縁部を位置付ける部分に直径２〜３ｍｍ程度の樋状の溝を全周に渡って掘り込んでおいてその成形を行うことで実現することができる。 The drug solution applied to the teeth and gingiva using the drug delivery mouthpiece of the present invention can be supplied from the drug solution supply tube between the inner surface of the mouthpiece and the tooth or gingival surface through the drug solution supply hole. Any type can be used as long as it can be discharged from the chemical liquid discharge tube through the chemical liquid discharge hole. The chemical solution may be supplied and discharged continuously so that fresh chemical solution flows back between the inner surface of the mouthpiece and the surface of the teeth or gums. After the supply, the inner surface of the mouthpiece and the teeth or gums are supplied. It may be allowed to discharge after having been stored for a certain time between the surfaces. The chemical solution may be supplied by connecting the chemical solution supply means upstream of the chemical solution supply tube and pushing the chemical solution from a container containing the chemical solution toward the mouthpiece, or the chemical solution supply means downstream of the chemical solution discharge tube. You may connect and supply in the aspect which draws in a chemical | medical solution by making the inside of a system from a container etc. containing a chemical solution to a chemical solution discharge tube into a negative pressure. Any supply method can be performed by using a pump such as a peristaltic pump as a chemical solution supply means, but in order to prevent leakage of the chemical solution from the gap between the edge of the mouthpiece and the surface of the teeth or gums, The method of supplying the chemical solution in a mode of drawing in from the downstream is preferable to the method of supplying the chemical solution in a mode of pushing in from the upstream. In addition, in order to prevent such a chemical | medical solution leak more effectively, it is good to make it the sealing property increase by the edge part of a mouthpiece pressing the surface of a tooth | gear or a gum. Such an aspect is realized by, for example, forming a gutter-like groove having a diameter of about 2 to 3 mm in the portion where the marginal portion of the mouthpiece in the gypsum model is positioned and performing the molding. Can do.
本発明のドラッグデリバリーマウスピースと、薬液をドラッグデリバリーマウスピースに供給するための薬液供給手段を少なくとも含んでなる歯科用ドラックデリバリー装置を用いれば、薬液供給手段の運転を制御することで、所望する期間、手間をかけることなく、薬液を歯や歯肉の表面に供給することができる。また、薬液を所定の温度に加温や冷却した上で供給するといったことや、複数種類の薬液を順次、供給するといったこと（例えば歯質を僅かに脱灰してコンディショニングを行うための第１の薬液を供給した後に歯質を強化するための第２の薬液を供給するといったこと）もできるので、これまでには行い得なかった歯科領域における予防や治療が可能となる。 By using the drug delivery mouthpiece of the present invention and the dental drug delivery device comprising at least the drug solution supply means for supplying the drug solution to the drug delivery mouthpiece, it is desirable to control the operation of the drug solution supply means. The chemical solution can be supplied to the surface of the teeth and gums without taking time and effort. Further, the chemical solution is supplied after being heated or cooled to a predetermined temperature, or a plurality of types of chemical solutions are supplied sequentially (for example, the first for conditioning the demineralization of teeth slightly). The second chemical solution for strengthening the tooth quality can be supplied after the chemical solution is supplied), so that the prevention and treatment in the dental field, which could not be performed so far, is possible.
本発明は、歯や歯肉に対して適用される薬液を、所望する期間、手間をかけることなく、その表面に供給することができるドラッグデリバリーマウスピースおよび歯科用ドラッグデリバリー装置を提供することができる点において産業上の利用可能性を有する。 The present invention can provide a drug delivery mouthpiece and a dental drug delivery device that can supply a drug solution applied to teeth and gums to the surface thereof without taking time and effort for a desired period of time. In terms of industrial applicability.
１ ドラッグデリバリーマウスピース
２ マウスピース
３ 薬液供給孔
４ 薬液排出孔
５ 薬液供給チューブ
６ 薬液排出チューブ
DESCRIPTION OF SYMBOLS 1 Drug delivery mouthpiece 2 Mouthpiece 3 Chemical solution supply hole 4 Chemical solution discharge hole 5 Chemical solution supply tube 6 Chemical solution discharge tube
Claims (2)
A dental drug delivery device comprising at least the drug delivery mouthpiece according to claim 1 and a drug solution supply means for supplying the drug solution to the drug delivery mouthpiece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011056964A JP2012192002A (en) | 2011-03-15 | 2011-03-15 | Drug delivery mouthpiece and dental drug delivery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011056964A JP2012192002A (en) | 2011-03-15 | 2011-03-15 | Drug delivery mouthpiece and dental drug delivery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2012192002A true JP2012192002A (en) | 2012-10-11 |
Family
ID=47084515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011056964A Pending JP2012192002A (en) | 2011-03-15 | 2011-03-15 | Drug delivery mouthpiece and dental drug delivery device |
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| Country | Link |
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| JP (1) | JP2012192002A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150072056A (en) * | 2013-12-19 | 2015-06-29 | 이화여자대학교 산학협력단 | Apparatus for dental care |
| JP2016214817A (en) * | 2015-05-15 | 2016-12-22 | 友和 上田 | Dental mouthpiece set and mouthpiece |
| CN107149506A (en) * | 2017-07-03 | 2017-09-12 | 福州大学 | It is a kind of to prevent painting fluorine device of children caries and preparation method thereof |
| RU2668690C2 (en) * | 2017-01-13 | 2018-10-02 | Виктор Николаевич Долинский | Dental lining |
| JP2019005538A (en) * | 2017-06-27 | 2019-01-17 | ドクターピック カンパニー リミテッド | Oral cavity care device and method |
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| JP2005095452A (en) * | 2003-09-26 | 2005-04-14 | Matsushita Electric Works Ltd | Ultrasonic organism washing device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20150072056A (en) * | 2013-12-19 | 2015-06-29 | 이화여자대학교 산학협력단 | Apparatus for dental care |
| KR101602539B1 (en) * | 2013-12-19 | 2016-03-15 | 이화여자대학교 산학협력단 | Apparatus for dental care |
| JP2016214817A (en) * | 2015-05-15 | 2016-12-22 | 友和 上田 | Dental mouthpiece set and mouthpiece |
| RU2668690C2 (en) * | 2017-01-13 | 2018-10-02 | Виктор Николаевич Долинский | Dental lining |
| JP2019005538A (en) * | 2017-06-27 | 2019-01-17 | ドクターピック カンパニー リミテッド | Oral cavity care device and method |
| US10716651B2 (en) | 2017-06-27 | 2020-07-21 | Dr. Pik Co., Ltd. | Oral care device and oral care method |
| CN107149506A (en) * | 2017-07-03 | 2017-09-12 | 福州大学 | It is a kind of to prevent painting fluorine device of children caries and preparation method thereof |
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