JPH02224655A - Method and device for polymerization of photopolymerization type resin for dental purpose - Google Patents
Method and device for polymerization of photopolymerization type resin for dental purposeInfo
- Publication number
- JPH02224655A JPH02224655A JP1045133A JP4513389A JPH02224655A JP H02224655 A JPH02224655 A JP H02224655A JP 1045133 A JP1045133 A JP 1045133A JP 4513389 A JP4513389 A JP 4513389A JP H02224655 A JPH02224655 A JP H02224655A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- soft sheet
- light
- sheet
- dental
- 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.)
- Granted
Links
- 229920005989 resin Polymers 0.000 title claims abstract description 87
- 239000011347 resin Substances 0.000 title claims abstract description 87
- 238000006116 polymerization reaction Methods 0.000 title claims description 31
- 238000000034 method Methods 0.000 title claims description 20
- 238000010438 heat treatment Methods 0.000 claims abstract description 9
- 230000000379 polymerizing effect Effects 0.000 claims abstract description 9
- 239000011248 coating agent Substances 0.000 claims abstract description 3
- 238000000576 coating method Methods 0.000 claims abstract description 3
- 239000011505 plaster Substances 0.000 claims description 25
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 7
- 210000004400 mucous membrane Anatomy 0.000 abstract description 3
- 229910052602 gypsum Inorganic materials 0.000 abstract 3
- 239000010440 gypsum Substances 0.000 abstract 3
- 208000002354 Edentulous Jaw Diseases 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 210000000214 mouth Anatomy 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000002845 discoloration Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 210000002414 leg Anatomy 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000008602 contraction Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000037303 wrinkles Effects 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920006311 Urethane elastomer Polymers 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 210000003127 knee Anatomy 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- -1 polysiloxane Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Dental Preparations (AREA)
- Dental Prosthetics (AREA)
- Polymerisation Methods In General (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、歯科用光重合型レジンをより良く重合、硬化
させてその表面特性等の物性を向上させるための歯科用
光重合型レジンの重合方法及び重合装置に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention is a method for improving the physical properties of dental photopolymerizable resins such as surface properties by better polymerizing and curing the dental photopolymerizable resins. This invention relates to a polymerization method and a polymerization device.
（従来の技術及び発明が解決しようとする課題）最近、
歯科技工物（補綴物）を製作する際に光重合型レジンが
使用されるようになってきた。(Problems to be solved by conventional techniques and inventions) Recently,
Photopolymerizable resins have come to be used when manufacturing dental techniques (prostheses).
この光重合型レジンを用いる用途としては、有床義歯、
小児義歯、床矯正装置、クラウン・ブリッジ等を挙げる
ことができる。Applications of this photopolymerizable resin include dentures,
Examples include pediatric dentures, floor orthodontics, crowns and bridges.
光重合型レジンは、従来より使用されている主に粉と液
とを混合する必要のある化学重合型レジンや加熱重合レ
ジンよりも、操作が容易で、かつ短時間に重合でき、ま
たレジンが予めワンペーストの状態であるため、完成物
に気泡の混入が少なく、物性も優れているという特徴が
ある。Photopolymerization resins are easier to operate and can be polymerized in a shorter time than conventionally used chemical polymerization resins and heat polymerization resins that require mixing powder and liquid. Because it is in a one-paste state, the finished product has fewer air bubbles and has excellent physical properties.
しかし、現在使用されている義歯床用光重金型レジンは
、すべてそのレジンペーストを手指で石膏模型上に圧着
したのち、光照射を行う方法を採用している。そのため
、圧着面に気泡を混入させないように、かつ均一な厚み
が得られるように圧着を行なわなければならず、その作
業に手間がかかり、かつ熟練を要する。However, all currently used light heavy metal mold resins for denture bases employ a method in which the resin paste is pressed onto a plaster model with fingers and then irradiated with light. Therefore, crimping must be carried out so as not to introduce air bubbles into the crimped surface and to obtain a uniform thickness, which is a time-consuming process and requires skill.
また、レジンペースト自体の内部には、肉眼で見える気
泡は存在しないが、それを常圧下で光照射すると、重合
収縮によってレジンペーストが石膏模型面から浮き上が
り、レジンペーストの圧着面に微細な気泡が発生するこ
とが多々あった。Furthermore, although there are no bubbles visible to the naked eye inside the resin paste itself, when it is irradiated with light under normal pressure, the resin paste rises from the plaster model surface due to polymerization contraction, and microscopic bubbles appear on the bonded surface of the resin paste. It happened often.
このため、得られたレジン製技工物（補綴物）の石膏模
型等の基台との圧着面の表面性状が不良となるばかりで
なく、機械的耐久性も不十分なものとなっていた。For this reason, not only the surface quality of the surface of the resulting resin prosthesis that is pressed against a base such as a plaster model is poor, but also the mechanical durability is insufficient.
また、歯冠用の光重合型レジンの重合操作に際しては、
インストルメントを用いてレジンペーストを歯冠金属面
に塗布されたオペーク面に築盛した後、常圧下で光照射
しているが、この場合、レジン重合終了前にオペーク面
とレジンペーストの積層部分に収縮が生じてしまって、
十分な接着強さが得られなかった。In addition, when polymerizing photopolymerizable resin for dental crowns,
After resin paste is applied to the opaque surface applied to the crown metal surface using an instrument, light is irradiated under normal pressure. A contraction has occurred,
Sufficient adhesive strength could not be obtained.
そうして得られた補綴物を装着すると、口腔内で前記積
層部分等において破壊が生じるため、接着性プライマー
を塗布するなどして対応していたが、十分な対応策とは
なっていない。When the prosthesis obtained in this way is worn, the laminated parts etc. will break in the oral cavity, so countermeasures have been taken such as applying an adhesive primer, but this is not a sufficient countermeasure.
さらに、光重合型レジンは、常温で重合硬化させるため
、加熱重合型レジンに比べて、未重合部分が多く残留し
やすい、そのため、機械的耐久性に乏しく、吸水、溶出
量の多い硬化体しか得られず、口腔内での長期的な耐久
性に欠ける面もある。Furthermore, since photopolymerizable resins are polymerized and cured at room temperature, they tend to leave more unpolymerized parts than heat-polymerizable resins.As a result, they have poor mechanical durability and only cured products that absorb and elute a lot of water. However, it also lacks long-term durability in the oral cavity.
（課題を解決するための手段）
本発明者らは、前記従来技術の問題点を解決すべく鋭意
研究を重ねた結果、本発明に到達し、表面特性等はおい
て優れた物性を備えた歯科用光重合型レジン重合硬化物
を得ることに成功した。(Means for Solving the Problems) As a result of intensive research to solve the problems of the prior art, the present inventors have arrived at the present invention. We succeeded in obtaining a photopolymerizable resin polymerization cured product.
すなわち本発明は、（１） 石膏模型等の基台上に圧
着された歯科用光重合型レジンに対して光照射を行って
それを重合硬化する歯科用光重合型レジンの重合方法に
おいて、前記基台上のレジン表面に透光性軟質シートを
被覆し、その上からガス圧による加圧を加え、さらに加
熱をも加えながら光照射を行うことを特徴とする歯科用
光重合型レジンの重合方法、及び（２）石膏模型等基台
上に圧着された歯科用光重合型レジンに光照射を行って
重合硬化させるための歯科用光重合型レジン重合装置に
おいて、石膏模型等の基台と該基台上の歯科用光重合型
レジンを被覆圧接するための透光性軟質シートと該軟質
シートの上面にガス圧加圧を加えるための加圧手段と加
熱手段とを備えてなることを特徴とする歯科用光重合型
レジン重合装置である。That is, the present invention provides (1) a method for polymerizing a dental photopolymerizable resin, which comprises irradiating light onto a dental photopolymerizable resin pressed onto a base such as a plaster model to polymerize and harden the resin; Polymerization of a dental photopolymerizable resin characterized by coating the resin surface on a base with a translucent soft sheet, applying gas pressure from above, and irradiating light while also applying heat. method, and (2) a dental photopolymerizable resin polymerization apparatus for polymerizing and curing a dental photopolymerizable resin pressed onto a base such as a plaster model by irradiating light with light; A transparent soft sheet for covering and pressure-welding the dental photopolymerizable resin on the base, and a pressure means and a heating means for applying gas pressure to the upper surface of the soft sheet. This is a photopolymerization type resin polymerization device for dental use.
上記において基台としては、石膏模型、レジン模型、義
歯床等が挙げられ、その上に歯科用光重合型レジンを圧
着するには、通常、上面から手指で均等に押付けること
によって行う。In the above, examples of the base include a plaster model, a resin model, a denture base, and the like, and the dental photopolymerizable resin is usually pressed onto the base by pressing it evenly from the top surface with fingers.
その後、上記基台上のレジンの表面に透光性軟質シート
を被覆し、このシートを介して光重合型レジンへのガス
圧加圧が行われるが透光性軟質シートとしては、ポリ塩
化ビニル、ポリ塩化ビニリデン、ポリフッ化ビニリデン
、ポリウレタン、ポリシロキサン等を挙げることができ
る。特にウレタンやシリコーンラバーのような透光性の
軟質シートは、光重合型レジンの圧接面にシワがよらな
いように圧接することができかつ繰り返し使用できるの
で特に好ましいものである。After that, the surface of the resin on the base is covered with a translucent soft sheet, and gas pressure is applied to the photopolymerizable resin through this sheet. , polyvinylidene chloride, polyvinylidene fluoride, polyurethane, polysiloxane, and the like. In particular, a light-transmitting soft sheet such as urethane or silicone rubber is particularly preferred because it can be pressed against the surface of the photopolymerizable resin without wrinkles and can be used repeatedly.
軟質シートにガス圧を加える方法としては、例えば軟質
シートを一部壁面とする密閉容器の一端から圧縮ガスを
圧入する方法が挙げられ、開閉自在の上下分割型容器内
に軟質シートの端縁部を密接保持するための軟質シート
保持部を設ける備えることが例示される。As a method of applying gas pressure to a soft sheet, for example, there is a method of injecting compressed gas from one end of an airtight container whose wall is partially made of a soft sheet. An example of this is to provide a soft sheet holder for closely holding the material.
該軟質シートは、義歯床や未矯正装置等のように広範囲
の模型面に圧接しなければならない場合に特に有用とな
る。The soft sheet is particularly useful when it must be pressed against a wide range of model surfaces, such as denture bases and unorthodontic appliances.
基台上の歯科用光重合型レジンに軟質シー”トを介して
ガス加圧を加えながら光重合を行うと、レジンが常時軟
質シートで全面から押さえ付けられているため、重合時
における収縮等によるそり等の変形が生じなく、かつレ
ジン表面が空気等のガス番こ直接接触することがないの
で、その重合の進行が妨げられることがない。When photopolymerization is performed while applying gas pressure to the dental photopolymerizable resin on the base, the resin is always pressed down from the entire surface by the soft sheet, causing shrinkage during polymerization. There is no deformation such as warping due to this, and the resin surface does not come into direct contact with a gas such as air, so the progress of polymerization is not hindered.
加熱方法としては、抵抗ヒーター、赤外線ヒーター、遠
赤外線ヒーター、マイクロ波等を使用することができる
。ヒーターの取り付は位置は、製作する技工物（補綴物
）の種類により異なる。As a heating method, a resistance heater, an infrared heater, a far-infrared heater, a microwave, etc. can be used. The mounting position of the heater differs depending on the type of prosthesis to be manufactured.
加温された加圧ガスとして供給することは好まいもので
あり、例えば加圧ガス導入用バルブの前のガス導管部に
ヒータ（例えば、電熱ヒータ）を取り付けることが例示
できる。It is preferable to supply the gas as a heated pressurized gas; for example, a heater (for example, an electric heater) may be attached to the gas conduit in front of the pressurized gas introduction valve.
光照射装置の光発生ランプとしては、特に可視光線発生
ランプが好ましく、キセノンランプ、ハロゲンランプ、
蛍光灯等を使用することができ、必要なら紫外部と赤外
部の光を遮断するフィルターをランプ前面に取り付けて
もよい。As the light generating lamp of the light irradiation device, visible light generating lamps are particularly preferable, and xenon lamps, halogen lamps,
A fluorescent lamp or the like can be used, and if necessary, a filter that blocks ultraviolet and infrared light may be attached to the front of the lamp.
また、このランプは、光重合型レジン重合容器内部もし
くは外部のどちらにも設置することができるが、光重合
型レジン重合容器内の圧力が高い場合やランプの耐久性
の面から考慮して、外部に設置することが好ましい。In addition, this lamp can be installed either inside or outside the photopolymerization type resin polymerization container, but considering the case where the pressure inside the photopolymerization type resin polymerization container is high or the durability of the lamp, Preferably, it is installed outside.
本発明方法による重合方法の適用においては、光重合型
レジンに対して、光照射、加熱及び加圧のすべて操作を
同時に加えるものであるが、その工程の前後において、
それら一部を欠く操作を加えるようにしてもよい、すな
わち、例えば初期工程においては、光重合型レジンへ加
熱のみを加え、それが一定の温度及び柔らかさになった
ときに、軟質シートを介するガス圧加圧と光照射とを加
えるという方式をとることによって、効率よく重合作業
を進行させることができる。また、重合操作の後半にお
いては、弱い光照射のみ又は弱い加熱のみを加えること
によって、重合進行の完全化を図るようにしてもよい。In applying the polymerization method according to the present invention, the photopolymerizable resin is subjected to light irradiation, heating, and pressurization all at the same time, but before and after these steps,
For example, in the initial process, only heating is applied to the photopolymerizable resin, and when it reaches a certain temperature and softness, a soft sheet is By applying a method of applying gas pressure and light irradiation, the polymerization work can be carried out efficiently. Further, in the latter half of the polymerization operation, only weak light irradiation or only weak heating may be applied to complete the polymerization.
また、本発明の実施においては、光重合型レジンと光照
射源（例えば、ハロゲンランプ）との距離を調整するこ
とによって、重合進行度をｍｕすることかできるが、そ
のためには、光照射源又は光重合型レジンのいずれかを
移動できるようにしてもよい。Furthermore, in carrying out the present invention, the degree of polymerization can be controlled by adjusting the distance between the photopolymerizable resin and the light irradiation source (for example, a halogen lamp); Alternatively, either of the photopolymerizable resins may be made movable.
上記において、加圧手段を有する光重合型レジン重合容
器は、例えばコンプレッサー又はガスボンベと連結され
ており、用途により光重合型レジン重合容器内の圧力及
び雰囲気及び温度を調節することができる構造となって
いる。In the above, the photopolymerization type resin polymerization container having a pressurizing means is connected to, for example, a compressor or a gas cylinder, and has a structure that allows the pressure, atmosphere, and temperature inside the photopolymerization type resin polymerization container to be adjusted depending on the application. ing.
通常使用する軟質シートへのガス圧加圧力は場合により
異なるが、１ｋｇ／ｃｍ” 〜１０ｋｇ／ｃｍ”の範囲
が用いられるｓ １ ｋ ｇ ／ （ｍ２未満では、レ
ジン表面への圧接の効果が十分発現せず、１０ｋｇ／ｃ
ｍ”を越えると技工物（補綴物）が加圧により極度に肉
薄になる等の恐れがあるため好ましくない、特に好まし
くは２ ｋ ｇ ／ ｃ ｍ ”〜７ｋｇ／ｃｍ”の圧
力範囲が適用できる。The gas pressure applied to the soft sheet normally used varies depending on the case, but the range of 1 kg/cm" to 10 kg/cm" is used. No expression, 10kg/c
If the pressure exceeds m", it is undesirable because there is a risk that the prosthesis may become extremely thin due to the pressure applied. Particularly preferably, a pressure range of 2 kg/cm to 7 kg/cm can be applied. .
また上記において、光重合型レジン重合装置の一部を透
光性材料で構成することは、その透光性材料の外から内
部の光重合型レジンに光照射ができるので好ましいもの
である。Further, in the above, it is preferable that a part of the photopolymerizable resin polymerization apparatus be made of a light-transmitting material because light can be irradiated from outside the light-transparent material to the photopolymerizable resin inside.
（実施例） 本発明を実施例によって更に詳しく説明する。(Example) The present invention will be explained in more detail by way of examples.
実施例１：
第１図は本発明実施例１に使用した光重合装置の一部断
面概説図である。Example 1: FIG. 1 is a partial cross-sectional schematic diagram of a photopolymerization apparatus used in Example 1 of the present invention.
図において、１はコンプレッサー、２は圧力計、３は加
圧用バルブ、４はランプ、５は光重合型レジン重合容器
、６は光重き型レジンシート、７゛は石膏模型、８は軟
質シート、９は軟質シート保持部、１０は石英ガラス板
、１１は置き台、１２は高さ調節部、１３は昇降用装置
、１４は外気導通バルブ、１５は赤外線ヒーターである
。In the figure, 1 is a compressor, 2 is a pressure gauge, 3 is a pressurizing valve, 4 is a lamp, 5 is a photopolymerization type resin polymerization container, 6 is a light weight type resin sheet, 7゛ is a plaster model, 8 is a soft sheet, 9 is a soft sheet holding part, 10 is a quartz glass plate, 11 is a stand, 12 is a height adjustment part, 13 is a lifting device, 14 is an outside air conduction valve, and 15 is an infrared heater.
まず無歯顎石膏模型７上にエボレックスＤ（日本油脂關
製、床用光重合型レジン）のレジンシート６を乗せ、そ
の上から手指で均等に押付けた後、該石膏模型を置き台
１１にセットする。First, a resin sheet 6 of Evolex D (manufactured by NOF Corporation, photopolymerizable resin for floors) is placed on the edentulous plaster model 7, and after pressing it evenly with your fingers, the plaster model is placed on the stand 11. Set to .
次いで、肉厚１．５ｍｍの軟質塩化ビニル製の軟質シー
ト８を軟質シート保持部９に乗せた後、高さ調整部１２
を動かして石膏模型の位置を調整し、バルブ１４を閏じ
た１次いで、赤外線ヒータ１５を点灯させ、２００℃で
６０秒間加熱し、軟質シートを軟化させた。Next, after placing the soft sheet 8 made of soft vinyl chloride with a wall thickness of 1.5 mm on the soft sheet holding section 9, the height adjusting section 12 is placed.
The position of the plaster model was adjusted by moving the valve 14, and then the infrared heater 15 was turned on and heated at 200° C. for 60 seconds to soften the soft sheet.
その後、加圧用バルブ３を開けること番こよりエアーコ
ンプレッサー１の圧縮空気を石英ガラス板１０を具備す
る光重合型レジン重合容器５の中仁圧力が４Ｋｇ／ａｍ
”となるまで流し込んだ。Thereafter, by opening the pressurizing valve 3, the compressed air from the air compressor 1 is supplied to the photopolymerization type resin polymerization container 5 equipped with the quartz glass plate 10 until the pressure reaches 4 kg/am.
”I poured it until it became ”.
それから、加圧用バルブ３を閏じた後、波長４００〜６
００ｎｍの可視光線を発生する２７Ｗのニーライン２（
東芝製蛍光灯）４で内部のレジンシート６に４分間光照
射した。光照射終了後、外気導通バルブ１４を開け、光
重合型レジン重合容器内部を大気圧に戻してから、重合
硬化したレジン製義歯床と石膏模型を取り出した。Then, after turning on the pressurizing valve 3, the wavelength of 400 to 6
27W knee line 2 that generates visible light of 00nm (
The internal resin sheet 6 was irradiated with light for 4 minutes using a Toshiba fluorescent lamp 4. After the light irradiation was completed, the outside air conduction valve 14 was opened to return the inside of the photopolymerization type resin polymerization container to atmospheric pressure, and then the polymerized and hardened resin denture base and plaster model were taken out.
得られた義歯床は、短時間の光照射時間にもかかわらず
、完全に重合硬化しており、変形もなく、模型粘膜面へ
の適合性にも優れていた。The resulting denture base was completely polymerized and hardened despite the short exposure time, had no deformation, and had excellent compatibility with the model mucosal surface.
そしてまた、エポレックスＤ６と石膏模型７との接触面
、すなわちレジン義歯床の粘膜面と石膏模型表面の間に
は、発泡も全く見受けられず、滑沢な面を呈していた。Furthermore, no foaming was observed at all on the contact surface between Eporex D6 and the plaster model 7, that is, between the mucous membrane surface of the resin denture base and the surface of the plaster model, and the surface was smooth.
比較例１：
加圧手段及び加熱手段を有しない以外は実施例１と同様
の装置を用いて、石膏模型とその表面に載置されたエポ
レックスＤのレジンシートに対して、ラボライト（重工
歯科工業社製の可視光線照射器）を用いて、１０分間光
照射した。Comparative Example 1: Using the same apparatus as in Example 1 except that it does not have a pressure means and a heating means, a plaster model and a resin sheet of Eporex D placed on its surface were treated with Labolight (Heavy Industrial Dental Industry Co., Ltd.). It was irradiated with light for 10 minutes using a visible light irradiator (manufactured by Co., Ltd.).
その結果、得られた義歯床はやや適合性に劣り、石膏模
型とレジン製義歯床粘膜面にはエボレックスＤのレジン
シート圧着時に入ったと思われる気泡が２．３ｍ察され
、そのレジン製義歯表面も粗造のものであった。As a result, the compatibility of the resulting denture base was somewhat poor, and 2.3 m of air bubbles were observed on the plaster model and the mucosal surface of the resin denture base, which were thought to have entered during the pressure bonding of the Evolex D resin sheet. The surface was also rough.
実施例２：
第２図は本発明実施例２に使用した光重合装置の一部断
面概説図である。Example 2: FIG. 2 is a partial cross-sectional schematic diagram of a photopolymerization apparatus used in Example 2 of the present invention.
図において、１はコンプレッサー、２は圧力計、３は加
圧用バルブ、４はランプ、５は光重合型レジン重合容器
、６は光重合型レジン、７は石膏模型、８は軟質シート
保持部、１ｏは石英ガラス板、１１は置き台、１２は高
さ調節部、１３は昇降用装置、１４は外気導通バルブ、
１５はヒーター１６はクラスプである。In the figure, 1 is a compressor, 2 is a pressure gauge, 3 is a pressurizing valve, 4 is a lamp, 5 is a photopolymerization type resin polymerization container, 6 is a photopolymerization type resin, 7 is a plaster model, 8 is a soft sheet holding part, 1o is a quartz glass plate, 11 is a stand, 12 is a height adjustment section, 13 is a lifting device, 14 is an outside air conduction valve,
15 is a heater and 16 is a clasp.
予めクラスプ、唇側誘導線を所定の位置に置いた石膏型
７上にＴＲＩＡＤ （Ｄｅｎｔｓｐ ｌ ｙ社製、光重
合型床用レジン）のレジンシート６を乗せ、手指で圧着
した後、該石膏型を置き台１１にセットする。A resin sheet 6 of TRIAD (manufactured by Dentsp Ly Co., Ltd., photopolymerizable floor resin) is placed on the plaster mold 7 in which the clasp and labial guide wire have been placed in predetermined positions, and after being crimped with fingers, the plaster mold is is set on the stand 11.
次いで、厚さ１ｍｍのエチレン−酢ビ共重合体製の軟質
シート８を軟質シート保持部９に乗せた後、高さ調整部
１２を動かして石膏模型の位置を調節し、バルブ１４を
閉じた。バルブ３を開けることにより電熱ヒーター１５
により１２０℃に加温されたエアーコンプレッサー１の
圧縮空気を石英ガラス板１０を具備する光重金型レジン
重合容器５の中に圧力が３ｋｇ／ｃｍ’となるまで流し
込んだ。Next, after placing a soft sheet 8 made of ethylene-vinyl acetate copolymer with a thickness of 1 mm on the soft sheet holding part 9, the height adjustment part 12 was moved to adjust the position of the plaster model, and the valve 14 was closed. . Electric heater 15 by opening valve 3
The compressed air from the air compressor 1 heated to 120° C. was poured into the light heavy mold resin polymerization container 5 equipped with the quartz glass plate 10 until the pressure reached 3 kg/cm′.
バルブ３を閉じた後、該石英ガラス板１４の上部に設置
した波長４００〜６００ｎｍの可視光を発生する２５０
Ｗ Ｍｕｌｔｉ−ｍｉｒｒｏｒＰｒｏｊｅｃｔ Ｌ
ａｍｐ ＥＸＹ（ＧＥＮＥＲＡＬ ＥＬＥＣＴＲＩ
Ｃ社製ハロゲンランプ）４で、２分間光照射した。光照
射終了後、バルブ１４を開け、光重合型レジン重合容器
内部を大気圧に戻してから、重合硬化した保定床と石膏
模型を取り出した。After closing the bulb 3, a 250 lamp which generates visible light with a wavelength of 400 to 600 nm is placed above the quartz glass plate 14.
W Multi-mirror Project L
amp EXY(GENERAL ELECTRI)
Light was irradiated for 2 minutes using a halogen lamp (manufactured by Company C) 4. After the light irradiation was completed, the valve 14 was opened to return the inside of the photopolymerization type resin polymerization container to atmospheric pressure, and then the polymerized and hardened retaining bed and plaster model were taken out.
得られた保定床は、短時間の光照射時間にもかかわらず
、完全に重合硬化しており、かつ変形がなく、模型粘膜
面への適合性にも優れていた。The obtained retaining bed was completely polymerized and cured despite the short light irradiation time, was not deformed, and had excellent compatibility with the model mucosal surface.
また、ＴＲＩＡＤと模型の接触面の間には気泡も全く見
られず、細部の再現性も非常に良好であり、滑沢な表面
を呈していた。口腔内の使用後においても、クラスプや
唇側線の脚部周囲レジンは、強度もあり、よく金属と接
着しているため、レジンの破折や汚れの付着などによる
着色は全くみられなかった。Further, no air bubbles were observed between the contact surface between the TRIAD and the model, and the reproducibility of details was very good, and the surface was smooth. Even after use in the oral cavity, the resin around the legs of the clasp and labial line was strong and adhered well to metal, so no discoloration due to breakage of the resin or adhesion of dirt was observed.
比較例２：
加圧手段及び加熱手段部分を有しない以外は実施例２と
同様の装置を用い、石膏模型の表面に載置されたＴＲＩ
ＡＤのレジンシート６に対して、ＴＲＩＡＤＩＩ （Ｄ
ｅｎｔｓｐ ｌｙ社製可視光線照射器）により、１０分
間光照射した。Comparative Example 2: Using the same device as in Example 2 except for not having the pressure means and heating means, TRI was placed on the surface of the plaster model.
TRIAD II (D
Light was irradiated for 10 minutes using a visible light irradiator manufactured by ENTSPLY.
その結果、得られた義歯床はやや適合性に劣り、保定法
粘膜面の口塁皺装、歯牙舌側歯頚部にあたる部位やクラ
スプ、唇側誘導線の脚部周辺には軟質不十分のためは生
じたと思われる気泡が多々観察され、その表面も粗造で
あった。As a result, the resulting denture base had a slightly poor fit, and was not soft enough for the oral wrinkles on the mucosal surface of the retention method, the area corresponding to the lingual neck of the tooth, the clasp, and the leg of the labial lead wire. Many air bubbles, which were thought to have been formed, were observed, and the surface was rough.
また、口腔内の使用後において、クラスプや唇側線の脚
部周囲レジンにレジンの破折や汚れの付着などによる着
色が観察され、粘膜面の汚れによる着色も見られた。Furthermore, after use in the oral cavity, discoloration was observed on the resin around the legs of the clasp and labial line due to broken resin and adhesion of dirt, and discoloration due to dirt on the mucous membrane surface was also observed.
さらに、上記の実施例及び比較例に示した方法及び材料
を用いて、実施例１及び実施例２について、６５Ｘ１０
Ｘ２．５ｍｍの曲げ強度試験体を作製した。Furthermore, using the methods and materials shown in the above Examples and Comparative Examples, for Example 1 and Example 2, 65X10
A bending strength test specimen with a diameter of 2.5 mm was prepared.
これらをインストロン万能試験機によって、曲げ試験を
行い曲げ強さを測定した。These were subjected to a bending test using an Instron universal testing machine to measure the bending strength.
その結果は第１表に示すとおりであり、いずれの場合に
も比較例より実施例によるものの値が大きく、本発明の
光重合装置を用いる効果が顕著に表れていた。The results are shown in Table 1, and in all cases, the values of the Examples were larger than those of the Comparative Examples, and the effect of using the photopolymerization apparatus of the present invention was clearly evident.
第１
表
（単位：Ｋｇ／ａｍ” ）
（発明の効果）
以上に詳述したごとく本発明の方法及び装置によれば、
基台上の歯科用光重合型レジンのレジン内に気泡が発生
することがなく、無変形で緻密質かつ強度及び透明性等
に優れ、かつ表面が滑沢で粘膜適合性の良好な歯科用重
合レジン成形物が得られる。Table 1 (Unit: Kg/am”) (Effects of the invention) As detailed above, according to the method and apparatus of the present invention,
A dental photopolymerizable resin on the base that does not generate bubbles in the resin, is non-deformable, dense, has excellent strength and transparency, and has a smooth surface and good mucosal compatibility. A polymerized resin molded product is obtained.
第１図は本発明実施例１に用いられる歯科用光重合装置
の一部断面概説図、第２図は実施例２で用いられる歯科
用光重合装置の一部断面概説図を示す。
１：エアーコンプレッサー、２：圧力計、加圧用バルブ
、４：ランプ、
光重合型レジン重合容器、
光重合型レジン、７：石膏模型、
軟質シート、９：軟質シート保持部、
：締めねじ部、１ｏ：石英ガラス板、
：置き台、１２：高さ調節部、
：昇降用装置、】４：外気導通バルブ、：ヒータ、FIG. 1 is a partial cross-sectional schematic diagram of a dental photopolymerization device used in Example 1 of the present invention, and FIG. 2 is a partial cross-sectional schematic diagram of a dental photopolymerization device used in Example 2. 1: Air compressor, 2: Pressure gauge, pressurizing valve, 4: Lamp, photopolymerization type resin polymerization container, photopolymerization type resin, 7: Plaster model, soft sheet, 9: Soft sheet holding part, : Tightening screw part, 1o: Quartz glass plate, : Stand, 12: Height adjustment part, : Lifting device, ]4: Outside air conduction valve, : Heater,
Claims (3)
レジンに対して光照射を行ってそれを重合硬化する歯科
用光重合型レジンの重合方法において、前記基台上のレ
ジン表面に透光性軟質シートを被覆し、その上からガス
圧による加圧を加え、さらに加熱をも加えながら光照射
を行うことを特徴とする歯科用光重合型レジンの重合方
法。(1) In a method for polymerizing a dental photopolymerizable resin that is pressure-bonded onto a base such as a plaster model, the resin on the base is irradiated with light to polymerize and harden the resin. A method for polymerizing a dental photopolymerizable resin, which comprises coating the surface with a translucent soft sheet, applying gas pressure thereon, and irradiating light while also applying heat.
特徴とする請求項１に記載の歯科用光重合型レジンの重
合方法。(2) The method for polymerizing a dental photopolymerizable resin according to claim 1, wherein the light irradiation is performed by irradiation with visible light.
ジンに光照射を行って重合硬化させるための歯科用光重
合型レジン重合装置において、石膏模型等の基台と該基
台上の歯科用光重合型レジンを被覆圧接するための透光
性軟質シートと該軟質シートの上面にガス圧加圧を加え
るための加圧手段と加熱手段とを備えてなることを特徴
とする歯科用光重合型レジン重合装置。(3) In a dental photopolymerizable resin polymerization device for polymerizing and curing a dental photopolymerizable resin pressed onto a base such as a plaster model by irradiating light with light, the base of the plaster model etc. and the base. It is characterized by comprising a translucent soft sheet for covering and pressure-welding the above dental photopolymerizable resin, and a pressure means and a heating means for applying gas pressure to the upper surface of the soft sheet. Dental photopolymerization type resin polymerization equipment.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4513389A JP2751329B2 (en) | 1989-02-28 | 1989-02-28 | Method and apparatus for polymerizing dental photocurable resin |
| US07/467,399 US5104591A (en) | 1989-01-25 | 1990-01-22 | Method for light curing of dental light-curing resins |
| DE90300809T DE69003695T2 (en) | 1989-01-25 | 1990-01-25 | Process for light vulcanization of dental resins usable for light vulcanization and device therefor. |
| EP90300809A EP0380345B1 (en) | 1989-01-25 | 1990-01-25 | A method for light curing of dental light-curing resins and an apparatus therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4513389A JP2751329B2 (en) | 1989-02-28 | 1989-02-28 | Method and apparatus for polymerizing dental photocurable resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02224655A true JPH02224655A (en) | 1990-09-06 |
| JP2751329B2 JP2751329B2 (en) | 1998-05-18 |
Family
ID=12710777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4513389A Expired - Fee Related JP2751329B2 (en) | 1989-01-25 | 1989-02-28 | Method and apparatus for polymerizing dental photocurable resin |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2751329B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008073229A (en) * | 2006-09-21 | 2008-04-03 | Shiyoufuu:Kk | Technical pressur polymerizer |
| JP2012034891A (en) * | 2010-08-09 | 2012-02-23 | Gc Corp | Photopolymerization device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008012182A (en) * | 2006-07-07 | 2008-01-24 | Masato Ueno | Plate denture manufacturing method and photopolymerizable resin-made sheet material for use in the method |
| JP5135570B2 (en) * | 2010-02-25 | 2013-02-06 | 太美雄 大前 | Method for manufacturing intraoral close attachment |
-
1989
- 1989-02-28 JP JP4513389A patent/JP2751329B2/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008073229A (en) * | 2006-09-21 | 2008-04-03 | Shiyoufuu:Kk | Technical pressur polymerizer |
| JP2012034891A (en) * | 2010-08-09 | 2012-02-23 | Gc Corp | Photopolymerization device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2751329B2 (en) | 1998-05-18 |
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