JP4725732B2 - Radiation curing device for adhesive for dental restoration - Google Patents
Radiation curing device for adhesive for dental restoration Download PDFInfo
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- JP4725732B2 JP4725732B2 JP2006122671A JP2006122671A JP4725732B2 JP 4725732 B2 JP4725732 B2 JP 4725732B2 JP 2006122671 A JP2006122671 A JP 2006122671A JP 2006122671 A JP2006122671 A JP 2006122671A JP 4725732 B2 JP4725732 B2 JP 4725732B2
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Description
本発明は、歯牙根管の窩洞内に塗布した接着剤が完全に硬化しないので、光の照射によって先端までの接着剤を確実に硬化させる歯科修復用接着剤等の照射硬化器具に関するものである。 The present invention relates to a radiation curing device such as a dental restoration adhesive that reliably cures the adhesive up to the tip by light irradiation because the adhesive applied in the cavity of the tooth root canal is not completely cured. .
従来この種の歯科修復材料及び接着剤は、特定の光の波長に反応する触媒を利用し、材質、その物に光を照射させる事で重合硬化させることが普通に実施される。
また、単に歯冠修復のみの場合は、充填物の厚さを指示通りに行えば、確実に重合用光線が修復物に照射され硬化するが、歯牙根管内における接着剤、修復材の場合では、光発生装置より遠い場合に於いては１０ｍｍと言う場合もあり、光発生ノズルの太さは直径１０ｍｍ前後で細い歯科歯牙根管内に挿入が出来ないので光重合硬化の効果が全く期待できない問題点がある。
その為に重合用光線の到達しにくい所には、未重合の接着層や充填物が存在し、これが原因となって臨床的脱離や変色及び未重合物質による生体為害作用が懸念されるものである。Conventionally, this type of dental restorative material and adhesive is usually polymerized and cured by irradiating the material and its material with light using a catalyst that reacts with a specific wavelength of light.
In addition, in the case of only crown restoration, if the thickness of the filling is performed as instructed, the restoration light beam is reliably irradiated and cured, but in the case of adhesives and restoration materials in the tooth root canal Then, when it is far from the light generating device, it may be said that it is 10 mm. Since the thickness of the light generating nozzle is around 10 mm in diameter, it cannot be inserted into a thin dental tooth root canal, so that the effect of photopolymerization and hardening is completely expected. There is a problem that cannot be done.
For this reason, there are unpolymerized adhesive layers and fillers in places where the polymerization light beam is difficult to reach, which may cause clinical detachment, discoloration, and biological damage caused by unpolymerized substances. It is.
それ等を解消するために現在では、デュアルキュアーと称する光重合と触媒重合の２種類の機能を持たせた材料が出現されている。
然しながら、該デュアルキュアー型は、未重合層が残る可能性を払拭できず、その決定的な相違点としては、光を照射した場合と比較して見ると、硬化後の硬度、対磨耗性等が決定的に劣ると云う事実が医療研究機関で立証されている現状である。
この様な危険性を回避する為には、該デュアルキュアーのタイプの歯科材料に対しても、硬化時もしくは硬化後に於いても充分な重合硬化用光線を満遍なく照射し、完全に硬化させる必要性が求められている問題点もある。In order to solve these problems, a material having two kinds of functions called photocuring and catalytic polymerization, which is called dual cure, has now appeared.
However, the dual cure type cannot wipe out the possibility that an unpolymerized layer remains, and the decisive difference is the hardness after curing, wear resistance, etc. as compared with the case of irradiation with light. This is the current situation that has been proven by medical research institutes.
In order to avoid such a risk, it is necessary to completely cure the dual-curing type dental material evenly during curing or after curing with sufficient polymerization curing light. There is also a problem that is required.
従来の技術の有するこの危険性を回避するためには、該デュアルキュアーのタイプの歯科材料に対しても、硬化時、硬化後に於いても充分な重合硬化用光線を満遍なく照射する必要性が求められている。
また、単に歯冠修復のみの場合でも、充填物の厚さと指示通りに行えば確実に重合用光線が修復物に照射されて硬化するが、歯牙根管内における接着剤、修復材の場合では、光発生装置より遠い場合に於いて１０ｍｍと言う場合もあり、光発生装置の光発生ノズルの大きさが直径１０ｍｍ前後による問題で光重合の効果が全く期待できないものである。
そこで、本発明の目的とする所は、歯牙根管内に塗布する歯科修復用の接着剤や充填材に充分に重合接着する光線を透光照射するための歯科修復用接着剤等の照射硬化器具を提供するものである。In order to avoid this danger of the prior art, it is necessary to uniformly irradiate the dual-curing type dental material with sufficient light for polymerization and curing even after curing. It has been.
In addition, even if only restoration of the crown is performed, if the thickness of the filling is followed as instructed, the light beam for polymerization is surely applied to the restoration to be cured, but in the case of an adhesive or restoration material in the tooth root canal When the distance from the light generating device is 10 mm, the size of the light generating nozzle of the light generating device is about 10 mm in diameter, and the photopolymerization effect cannot be expected at all.
Therefore, the object of the present invention is to cure the irradiation of dental restoration adhesive or the like for translucent irradiation of a light beam that is sufficiently polymerized and adhered to a dental restoration adhesive or filler applied in a tooth root canal. A device is provided.
上記の目的を達成するために、本発明によれば、歯牙根管の内部に挿入する照射硬化器具は、円筒形の外周に対して先端に向って細く縮小した数段の階段を形成する。この階段には先端面及び各々に水平な平坦面を設け、この照射硬化器具を歯牙根管に挿入し、その基端より光を透光照射することによって、通過時の光によって滅衰のほとんどない状態の強い重合用光線を歯牙根管の内壁及び根尖部にも透光照射する事が出来るものである。 In order to achieve the above-mentioned object, according to the present invention, the irradiation curing device inserted into the tooth root canal forms several steps steeply reduced toward the tip with respect to the outer periphery of the cylindrical shape. The staircase is provided with a distal end surface and a horizontal flat surface on each side, and this irradiation curing device is inserted into the tooth root canal, and light is transmitted through the proximal end, so that most of the decay is caused by light at the time of passage. It is possible to irradiate the inner wall and root apex of the tooth root canal with a strong polymerization light beam that is not present.
本発明は、以上説明したように構成されているので、ブラシ等で歯牙根管の内部に塗布した接着剤及び充填材等が完全に硬化しない欠点を解決できる効果と、塗布した接着剤等を歯牙根管の内壁面及び根尖部に至る全体を容易、確実に透光照射して完全に硬化重合できる効果がある。
そして、照射硬化器具は、円筒形で外周に順次細く縮小された外周の先端に向って階段状の階段を形成し、該階段には各々平坦面を設けてあるので、該照射硬化器具に照射された光は、各平坦面より直角な角度の方向に照射するため、該歯牙根管の先端及び内壁全体に光が当たり容易に光硬化される効果がある。また、該照射硬化器具の最先端に設けた平坦面によっては、光が歯牙根管の先頭の根尖部まで当たるために確実に硬化され、事後の作業が敏速にできる効果がある。
更に、該照射硬化器具には、端部に接続部を設けて光発生ノズルの中心に正確に当たるので、光照射の減衰を抑える効果がある。Since the present invention is configured as described above, the effect that the adhesive and filler applied to the inside of the tooth root canal with a brush or the like can not be completely cured, and the applied adhesive, etc. There is an effect that complete curing polymerization can be performed by easily and surely transmitting light through the entire inner wall surface and root apex of the tooth root canal.
The irradiation curing device is formed in a cylindrical shape with a stepped staircase toward the outer peripheral tip that is successively reduced in the outer periphery, and each step has a flat surface. Since the emitted light is irradiated in a direction at a right angle from each flat surface, the tip of the tooth root canal and the entire inner wall hit the light and are easily photocured. In addition, depending on the flat surface provided at the forefront of the irradiation curing device, light strikes the root apex at the top of the tooth root canal, so that it is reliably cured and the subsequent work can be performed quickly.
Furthermore, the irradiation curing device has an effect of suppressing attenuation of light irradiation because a connection portion is provided at the end portion and accurately hits the center of the light generating nozzle.
以上のように構成された照射硬化器具は、修復される歯牙根管の内部を消毒した後に、その内部に接着剤又は固化材等を塗布し、また乾燥硬化しない内に該照射硬化器具の基端を光発生ノズルに接続し、先端を該歯牙根管の内部先端まで挿入し、各々平坦面より光を直角な角度を持つように垂直に透光させ敏速に内壁全体を固化させ、事後の処置を容易とするものである。 The irradiation curing device configured as described above is to disinfect the inside of the tooth root canal to be repaired, and then apply an adhesive or a solidifying material to the inside of the tooth curing canal. Connect the end to the light generation nozzle, insert the tip to the inner tip of the tooth root canal, light is transmitted vertically from each flat surface at a right angle to quickly solidify the entire inner wall, It facilitates treatment.
次に、本発明の実施例を図面について説明すると、図１、図２に示す如く、照射硬化器具（１）は、歯科修復用の各種の光発生ノズル（１２）に基部の連結部（１１）を以って着脱自在に装着される。該照射硬化器具（１）は、全体が透明性の合成樹脂等より円筒形に形成され、その円筒形には、先頭に向って細く縮小された数段の階段を形成し、該階段には、基部より先頭に向って第１平坦面（２）、第２平坦面（３）、第３平坦面（４）及び最先端にも第４平坦面（５）を各々複数段に形成してある。該第１平坦面（２）、該第２平坦面（３）、該第３平坦面（４）及び最先端の該第４平坦面（５）には、各々矢印（６）（６）で示す如く、光が平坦面より直角方向に光射するように構成されている。 Next, an embodiment of the present invention will be described with reference to the drawings. As shown in FIGS. 1 and 2, the irradiation curing device (1) is connected to various light generating nozzles (12) for dental restoration with a base connection portion (11). ) Is detachably mounted. The irradiation curing device (1) is entirely formed in a cylindrical shape from a transparent synthetic resin or the like, and in the cylindrical shape, several steps that are narrowed down toward the top are formed. The first flat surface (2), the second flat surface (3), the third flat surface (4) and the fourth flat surface (5) are formed in a plurality of stages at the forefront from the base toward the head. is there. The first flat surface (2), the second flat surface (3), the third flat surface (4) and the foremost fourth flat surface (5) are respectively indicated by arrows (6) and (6). As shown, the light is emitted in a direction perpendicular to the flat surface.
更に、図３に示される実施例では、歯槽骨（１０）の外周の歯肉（９）を示し、該歯肉（９）の内部に位置する歯牙根管（８）に対して、該歯牙根管（８）内面に接着剤（７）を注入する。また、必要に応じて各種の固化材を注入使用することもある。
また、該歯牙根管（８）には、内壁に塗布した接着剤（２）が乾燥硬化されない内に該光発生ノズル（１２）に取着した該照射硬化器具（１）を先端まで挿入し、直進する透光は、該歯牙根管（８）の内壁全面に満遍なく照射されるものである。Further, in the embodiment shown in FIG. 3, the gingiva (9) on the outer periphery of the alveolar bone (10) is shown, and the dental root canal (8) is located inside the gingival (9). (8) The adhesive (7) is injected into the inner surface. Further, various solidifying materials may be injected and used as necessary.
Further, the irradiation curing device (1) attached to the light generating nozzle (12) is inserted to the tip of the tooth root canal (8) while the adhesive (2) applied to the inner wall is not dried and cured. The translucent light that travels straight travels evenly across the entire inner wall of the tooth root canal (8).
次に、光の性質について、透光過性物体内に照射された光がその物体より外部に射出される場合は、射出角度が４５度以下の鋭角であればあるほど、その物体内部側表面に於いて反射され外部にはほとんど照射透光されない性質を有するものである。
また、一度透光過性物体内に照射された光線は、その内表面に到達する角度が鋭角であればあるほど、その物体内表面で反射を繰り返し、その物体のもつ光抵抗値の滅衰を除いた以外の光量を保って、より遠方まで届くものである。
従って、照射光の照射方向に対して理想的には、直角な角度を持つ光射出面を形成する。
更に、本発明の照射硬化器具を使用した場合は、先端の平坦面よりの光を照射した場合は、先端より２．７ｍｍの深さまで硬化が認められている。Next, regarding the nature of the light, when the light irradiated into the translucent object is emitted outside from the object, the more the emission angle is 45 degrees or less, the more the surface inside the object In this case, the light is reflected and hardly irradiated and transmitted to the outside.
In addition, the light beam once irradiated in the translucent object is reflected on the inner surface of the object as the angle reaching the inner surface becomes acute, and the light resistance value of the object decays. Keeping the light intensity except for, it reaches farther.
Therefore, ideally, a light exit surface having an angle perpendicular to the irradiation direction of the irradiation light is formed.
Furthermore, when the irradiation curing device of the present invention is used, curing is recognized to a depth of 2.7 mm from the tip when irradiated with light from the flat surface at the tip.
１ 照射硬化器具
２ 第１平坦面
３ 第２平坦面
４ 第３平坦面
５ 第４平坦面
６ 矢印
７ 接着剤
８ 歯牙根管
９ 歯肉
１０ 歯槽骨
１１ 連結部
１２ 光発生ノズルDESCRIPTION OF
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006122671A JP4725732B2 (en) | 2006-03-30 | 2006-03-30 | Radiation curing device for adhesive for dental restoration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006122671A JP4725732B2 (en) | 2006-03-30 | 2006-03-30 | Radiation curing device for adhesive for dental restoration |
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| Publication Number | Publication Date |
|---|---|
| JP2007268226A JP2007268226A (en) | 2007-10-18 |
| JP4725732B2 true JP4725732B2 (en) | 2011-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2006122671A Expired - Fee Related JP4725732B2 (en) | 2006-03-30 | 2006-03-30 | Radiation curing device for adhesive for dental restoration |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5828176B2 (en) * | 2009-09-09 | 2015-12-02 | 国立大学法人大阪大学 | Dental equipment |
| CN105411715B (en) * | 2015-12-23 | 2017-09-26 | 南宁宝莱医疗器械有限公司 | Light shading type dental photocuring machine |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5385469A (en) * | 1992-06-12 | 1995-01-31 | Weissman; Bernard | Method for forming a coronal replacement for a tooth and product for casting the crown |
| JPH10234751A (en) * | 1997-02-28 | 1998-09-08 | Osada Res Inst Ltd | Photopolymerization device |
| JP3782220B2 (en) * | 1997-09-30 | 2006-06-07 | 株式会社モリタ製作所 | Laser medical device and its handpiece |
| JP4093750B2 (en) * | 2001-11-19 | 2008-06-04 | 淳 高橋 | Dental root canal filling system using light-diffusing resin fiber, light-curing resin and dentin adhesive |
| JP2003310641A (en) * | 2002-04-25 | 2003-11-05 | Dentsply Sankin Kk | Light irradiating auxiliary tip for dental restoration |
| JP4902100B2 (en) * | 2003-12-04 | 2012-03-21 | サンメディカル株式会社 | Dental optical fiber, dental treatment kit including the same, and method for curing dental photopolymerizable composition |
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| Publication number | Publication date |
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| JP2007268226A (en) | 2007-10-18 |
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