JPH0523354A - Dental arch protective and othodontic tool - Google Patents
Dental arch protective and othodontic toolInfo
- Publication number
- JPH0523354A JPH0523354A JP3201112A JP20111291A JPH0523354A JP H0523354 A JPH0523354 A JP H0523354A JP 3201112 A JP3201112 A JP 3201112A JP 20111291 A JP20111291 A JP 20111291A JP H0523354 A JPH0523354 A JP H0523354A
- Authority
- JP
- Japan
- Prior art keywords
- ethylene
- olefin
- crosslinking
- orthodontic appliance
- alpha
- 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.)
- Withdrawn
Links
Landscapes
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Dental Preparations (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は歯列保護矯正具に関す
る。さらに詳しくは、各個人の歯列に応じた形状に予め
形成された歯列保護矯正具に関する。FIELD OF THE INVENTION The present invention relates to an orthodontic appliance. More specifically, the present invention relates to an orthodontic appliance orthodontic appliance formed in advance in a shape corresponding to each individual's dental arch.
【０００２】[0002]
【従来の技術】ボクシング、アメリカンフットボールな
どの激しい動作を伴うスポーツでは、歯列を保護するた
め、および、脳への衝撃を緩和するため、一般にマウス
ピースと呼ばれている歯列保護具が広く用いられてい
る。また、歯科医院では、歯列の咬合状態が正常でない
患者の歯列咬合状態を改善するため、歯列矯正具が用い
られている。2. Description of the Related Art In sports such as boxing and American football that involve intense movements, a mouthpiece protector generally called a mouthpiece is widely used to protect the dentition and to reduce the impact on the brain. It is used. Further, in a dental clinic, an orthodontic appliance is used in order to improve the dentition occlusal condition of a patient whose occlusal condition is not normal.
【０００３】ところで、従来、上記の用途の歯列保護矯
正具は、酢酸ビニル樹脂を代表とする弾力性を有する熱
可塑性樹脂から形成されていた。かかる歯列保護矯正具
は、一般に、加熱して軟化させたのち、火傷しない程度
に冷まし、硬化しないうちに歯列で噛んで各個人の歯列
に応じた形状に変形させて用いている。[0003] By the way, conventionally, the orthodontic appliance for orthodontics for the above-mentioned uses has been formed from a thermoplastic resin having elasticity such as vinyl acetate resin. Such an orthodontic appliance is generally used after being heated and softened, then cooled to a degree that does not cause burns, and then bitten by the tooth before being hardened to be deformed into a shape corresponding to the individual's tooth.
【０００４】しかしながら、かかる歯列保護矯正具は、
手指を用いて変形させることから、各個人の歯列、およ
び、歯牙形状に完全に適合した形状に変形させることが
困難であり、装着時の密着性あるいは装用感が不充分で
あった。However, such an orthodontic appliance is
Since it is deformed using fingers, it is difficult to deform it into a shape that perfectly fits the dentition and tooth shape of each individual, and the adhesion or wearing feeling when worn is insufficient.
【０００５】一方、歯科医院において、歯科の常法にし
たがって、各個人の歯列の印象を採取したのち、石膏模
型を作製し、この石膏模型を用いて、弾力性を有する熱
可塑性樹脂を高温に加熱して溶融成形させ、装着時の密
着性あるいは装用感の良い歯列保護矯正具が製作されて
いる。On the other hand, in a dental clinic, an impression of each individual's dentition is taken in accordance with a conventional method of dentistry, and then a plaster model is prepared. Using this plaster model, a thermoplastic resin having elasticity is heated to a high temperature. An orthodontic appliance with good adhesion and wearing comfort is manufactured by heating and melting.
【０００６】しかしながら、このようにして加熱溶融成
形された歯列保護矯正具においても、熱可塑性樹脂を用
いて、その硬化によって形状を保持していることに起因
する弾力性の不足および歯列保護矯正具を使用中に、咬
合力による塑性変形の蓄積によって、早期に破断を来す
という欠点を有していた。However, even in the orthodontic appliance orthodontic appliance which has been heat-melted and molded in this way, the thermoplastic resin is used and the elasticity is insufficient due to the shape being retained by the hardening of the thermoplastic resin, and the dental arch protection. There was a drawback that during the use of the corrective tool, the plastic deformation due to the occlusal force was accumulated, causing early rupture.
【０００７】[0007]
【発明が解決すべき課題】本発明の目的は、歯列保護矯
正具を提供することにある。本発明の他の目的は、使用
中の耐久強度が従来よりも強い素材を用い、衝撃吸収能
力が従来よりも高い歯列保護矯正具を提供することにあ
る。本発明のさらに他の目的および利点は以下の説明か
ら明らかとなろう。SUMMARY OF THE INVENTION An object of the present invention is to provide an orthodontic appliance. It is another object of the present invention to provide a orthodontic appliance orthodontic appliance that uses a material having a higher durable strength during use than ever before and has a higher impact absorption capacity than ever before. Further objects and advantages of the present invention will be apparent from the following description.
【０００８】[0008]
【課題を解決するための手段】本発明によれば、本発明
の上記目的および利点は、エチレン−α−オレフィン−
ジエン共重合体を架橋してなる架橋体から形成されてい
ることを特徴とする歯列保護矯正具によって達成され
る。According to the present invention, the above objects and advantages of the present invention are met by the ethylene-α-olefin-
It is achieved by an orthodontic appliance, which is formed from a crosslinked product obtained by crosslinking a diene copolymer.
【０００９】また、本発明の歯列保護矯正具は、エチレ
ン−α−オレフィン−ジエン共重合体を構成するジエン
が、ジシクロペンタジエンおよびエチリデンノルボルネ
ンの少なくともいずれか一方であることが好ましい。Further, in the orthodontic appliance according to the present invention, the diene constituting the ethylene-α-olefin-diene copolymer is preferably at least one of dicyclopentadiene and ethylidene norbornene.
【００１０】前記のエチレン−α−オレフィン−ジエン
共重合体の架橋体は、高分子間が架橋していることによ
り、ゴム弾性を有するので、弾力性が従来の熱可塑性樹
脂よりも大幅に高く、しかも、使用中の耐久強度が従来
の熱可塑性樹脂よりも強い。また、前記の特定のジエン
は、エチレン−α−オレフィンとの共重合性が高く、ま
た、架橋処理による架橋度が高いので、架橋体が高性能
となる特長がある。The cross-linked ethylene-α-olefin-diene copolymer has rubber elasticity due to cross-linking between the polymers, and therefore has significantly higher elasticity than the conventional thermoplastic resin. Moreover, the durability strength during use is stronger than that of conventional thermoplastic resins. In addition, the above-mentioned specific diene has a high copolymerizability with ethylene-α-olefin and a high degree of cross-linking by the cross-linking treatment, so that the cross-linked product has a feature of high performance.
【００１１】以下に本発明に係る歯列保護矯正具につい
てさらに具体的に説明する。本発明の歯列保護矯正具を
形成するエチレン−α−オレフィン−ジエン共重合体を
架橋してなる架橋体において、該共重合体のエチレン成
分の比率としては、エチレン−α−オレフィンの総量に
対して、５０モル％乃至９５モル％が好ましいが、エチ
レン成分の比率が低すぎると架橋度が上がり難いので、
エチレン成分の比率を７０モル％以上とするのが、より
好ましい。Hereinafter, the orthodontic appliance according to the present invention will be described more specifically. In the crosslinked product obtained by crosslinking the ethylene-α-olefin-diene copolymer forming the orthodontic appliance of the present invention, the ratio of the ethylene component of the copolymer is based on the total amount of ethylene-α-olefin. On the other hand, 50 mol% to 95 mol% is preferable, but if the ratio of the ethylene component is too low, it is difficult to increase the degree of crosslinking.
It is more preferable that the ratio of the ethylene component is 70 mol% or more.
【００１２】該共重合体の架橋方法としては、工業的に
は通常、硫黄架橋あるいは過酸化物架橋が用いられてい
るが、硫黄架橋の場合には架橋体に硫黄の臭気が残留し
やすいので、歯列保護矯正具用途には不向きであり、過
酸化物架橋を用いるのが好ましい。過酸化物としては、
種々の化合物を用い得るが、該歯列保護矯正具を製造す
る工程で、未架橋の混練組成物を薄板状に成形し、これ
を加熱軟化させたのち、各個人の歯列模型上に塑性加工
する必要があるので、この工程までに架橋が開始しない
よう維持する必要がある。そのため、分解開始温度が塑
性加工温度以上の過酸化物を選択する。通常、２時間半
減期温度で約１００℃以上の分解温度を有する過酸化物
を用いる。また、未架橋の該歯列保護矯正具を成形した
後、加熱による架橋処理を行なう工程で、該未架橋歯列
保護矯正具は、その熱変形を防止するため、歯列弓の石
膏模型および埋没用石膏硬化体と一体のままで加熱架橋
処理されることから、石膏模型および石膏硬化体の耐熱
温度以下で加熱架橋する必要がある。歯科用石膏の耐熱
温度は、高々１３０℃程度であるため、過酸化物の分解
温度も２時間半減期温度で約１３０℃以下のものを選択
する必要がある。したがって、過酸化物の分解温度は、
２時間半減期温度で約１００℃乃至約１３０℃が好まし
い。As a method for crosslinking the copolymer, industrially, sulfur crosslinking or peroxide crosslinking is usually used. However, in the case of sulfur crosslinking, the odor of sulfur tends to remain in the crosslinked product. However, it is not suitable for use as an orthodontic appliance, and it is preferable to use peroxide crosslinking. As a peroxide,
Although various compounds can be used, in the step of manufacturing the orthodontic appliance, the uncrosslinked kneading composition is formed into a thin plate, which is heated and softened, and then plasticized on the dental model of each individual. Due to the need for processing, it is necessary to keep the crosslinking from starting before this step. Therefore, a peroxide whose decomposition start temperature is equal to or higher than the plastic working temperature is selected. Usually, a peroxide having a decomposition temperature of about 100 ° C. or higher at a 2-hour half-life temperature is used. In addition, in the step of performing a crosslinking treatment by heating after molding the uncrosslinked orthodontic appliance, the uncrosslinked orthodontic appliance has a plaster model of a dental arch and a plaster model for preventing thermal deformation. Since it is heat-crosslinked as it is with the cured gypsum for burial, it is necessary to perform heat-crosslinking at a temperature not higher than the heat resistant temperature of the gypsum model and the cured gypsum. Since the heat resistant temperature of dental gypsum is about 130 ° C. at most, it is necessary to select a decomposition temperature of peroxide of about 130 ° C. or less at a 2-hour half-life temperature. Therefore, the decomposition temperature of peroxide is
A 2 hour half-life temperature of about 100 ° C to about 130 ° C is preferred.
【００１３】この条件を満たす過酸化物としては、例え
ば、１,１−ビス（ｔ−ブチルパーオキシ）３,３,５−
トリメチルシクロヘキサン、１,１−ビス（ｔ−ブチル
パーオキシ）シクロヘキサン、ｔ−ブチルパーオキシラ
ウレート、ｔ−ブチルパーオキシイソプロピルカーボネ
ート、シクロヘキサンパーオキサイド、ｔ−ブチルパー
オキシアリルカーボネートなどが例示できる。なお、過
酸化物の分解物が臭気を有する場合、あるいは安全上不
安が残る場合には、架橋処理終了後に、分解物を除去す
る処理を行う。例えば、通常の過酸化物の場合には、ア
ルコール性分解物が生成するので、架橋済みの歯列保護
矯正具を石膏型から取り出し、沸水で煮沸処理すると、
分解物が水に抽出され、同時に歯列保護矯正具の臭気も
除去されるので好ましい。As the peroxide which satisfies this condition, for example, 1,1-bis (t-butylperoxy) 3,3,5-
Examples include trimethylcyclohexane, 1,1-bis (t-butylperoxy) cyclohexane, t-butylperoxylaurate, t-butylperoxyisopropyl carbonate, cyclohexane peroxide, and t-butylperoxyallyl carbonate. If the decomposed product of peroxide has an odor, or if there is any concern about safety, a process of removing the decomposed product is performed after the crosslinking process is completed. For example, in the case of a normal peroxide, since an alcoholic decomposition product is produced, take out the crosslinked orthodontic appliance orthodontic appliance from the plaster mold and boil it with boiling water,
The decomposed product is extracted in water, and at the same time, the odor of the orthodontic appliance is removed, which is preferable.
【００１４】このようにして作製された架橋歯列保護矯
正具は、高分子間が架橋していることにより、ゴム弾性
を有するので、弾性変形性、並びに、弾性回復性が従来
の熱可塑性樹脂よりも大幅に高く、しかも、使用中の耐
久強度、即ち、繰り返し咬合による永久変形量が少な
く、ひいては、噛み切り破断に至るまでの耐久性が従来
の熱可塑性樹脂よりも良好である。The cross-linked orthodontic appliance thus prepared has rubber elasticity due to cross-linking between the polymers, so that it has elastic deformability and elastic recoverability as compared with the conventional thermoplastic resin. It is significantly higher than the conventional thermoplastic resin in durability strength during use, that is, the amount of permanent deformation due to repeated occlusion is small, and the durability up to bite fracture is further improved.
【００１５】エチレン−α−オレフィン−ジエン共重合
体を構成するα−オレフィンとしては、炭素数３ないし
１０のα−オレフィン、例えばプロピレン、１−ブテ
ン、１−ペンテン、１−ヘキセン、４−メチル−１−ペ
ンテン、１−オクテン、１−デセン及びこれらの混合物
を挙げることができるが、なかでも１−ブテンが好まし
い。The α-olefin constituting the ethylene-α-olefin-diene copolymer is an α-olefin having 3 to 10 carbon atoms, such as propylene, 1-butene, 1-pentene, 1-hexene and 4-methyl. Examples thereof include -1-pentene, 1-octene, 1-decene, and a mixture thereof, with 1-butene being preferred.
【００１６】エチレン−α−オレフィン−ジエン共重合
体を構成するジエンは、ジシクロペンタジエン、あるい
は、エチリデンノルボルネンの少くともいずれか一方で
あることが好ましい。該ジエンは、エチレン−α−オレ
フィンとの共重合性が高く、また、架橋処理による架橋
度が高いので、架橋体のゴム弾性を大きくする特長があ
る。該ジエンの共重合率は、エチレン−α−オレフィン
の総量に対して、通常、５モル％乃至６０モル％が好ま
しい。共重合率が高すぎると、架橋速度が速すぎて局部
発熱のため架橋反応が暴走しやすく、未架橋成形物の成
形が困難となる。したがって、共重合率が約４０モル％
以下の共重合体を選択するのが、より好ましい。一方、
共重合率が低すぎると架橋度が低くなり、架橋体のゴム
弾性が低下する。したがって、共重合率が約２０モル％
以上の共重合体を選択するのが、より好ましい。前記の
理由から、ジエンの共重合率は、エチレン−α−オレフ
ィンの総量に対して、２０モル％乃至４０モル％が、よ
り好ましい。The diene constituting the ethylene-α-olefin-diene copolymer is preferably at least one of dicyclopentadiene and ethylidene norbornene. Since the diene has a high copolymerizability with ethylene-α-olefin and a high degree of cross-linking by the cross-linking treatment, it has an advantage of increasing the rubber elasticity of the cross-linked product. The copolymerization ratio of the diene is usually preferably 5 mol% to 60 mol% with respect to the total amount of ethylene-α-olefin. If the copolymerization rate is too high, the crosslinking rate will be too fast, and the local heat generation will cause the crosslinking reaction to run away easily, making it difficult to form an uncrosslinked molded article. Therefore, the copolymerization rate is about 40 mol%
It is more preferable to select the following copolymers. on the other hand,
If the copolymerization rate is too low, the degree of crosslinking will be low, and the rubber elasticity of the crosslinked body will be reduced. Therefore, the copolymerization rate is about 20 mol%
It is more preferable to select the above copolymer. For the above reason, the diene copolymerization rate is more preferably 20 mol% to 40 mol% with respect to the total amount of ethylene-α-olefins.
【００１７】また、本発明の歯列保護矯正具の未架橋組
成物には、架橋速度を制御するための安定剤、成形工程
・架橋処理工程・沸水煮沸工程での表面劣化を抑制する
ための酸化防止剤、歯列保護矯正具の表面硬度、あるい
は、ゴム弾性を調整するための有機あるいは無機の充填
材、及び、着色材などを添加することもできる。The uncrosslinked composition of the orthodontic appliance according to the present invention comprises a stabilizer for controlling the crosslinking rate and a surface deterioration in the molding step, the crosslinking treatment step, and the boiling water step. It is also possible to add an antioxidant, an organic or inorganic filler for adjusting the surface hardness of the orthodontic appliance, or rubber elasticity, and a coloring material.
【００１８】本発明の歯列保護矯正具を作製する全工程
の例を、実施例を挙げて以下に説明する。An example of all steps for producing the orthodontic appliance according to the present invention will be described below with reference to Examples.
【００１９】[0019]
実施例１
（素材の混練）５インチ直径の２本ロール式混練機
〔（株）安田精機製作所製、ＭＩＸＩＮＧＲＯＬＬ 型
式Ｎo.１９１ＴＭ〕を用いて、ロール表面温度を１００
℃に設定して回転させ、エチレン−１−ブテン−ジシク
ロペンタジエン共重合体（以下、ＥＢＴと略記する：エ
チレンと１−ブテンのモル比 ９０／１０、ヨウ素価 １
０、固有粘度［η］ １.０ −デカリン溶媒中１３５℃
で多点法により測定）ペレット１００ｇを溶融し、均一
な薄い板状になるまで混練した。次いで、ロール混練作
業用皮切りナイフでロール上の溶融状態のＥＢＴ板状体
を切り返しながら、酸化亜鉛粉末〔和光純薬（株）製、
試薬特級〕０.５ｇ、ステアリン酸粉末〔和光純薬
（株）製、試薬１級〕０.５ｇ、シリカ粉末〔日本アエ
ロジル（株）製、ＲＭ−５０〕３０ｇ、および、ポリブ
タジエン液〔日本石油化学（株）製、日石ポリブタジエ
ン Ｂ−３００〕１０ｇを予め混合した混合物を徐々に
添加した。添加終了後もさらに５分間続けてロール混練
した。ついで、無機系顔料〔東洋インキ製造（株）製、
Ｙ−３〕０.５ｇを添加し、さらに３分間ロール混練し
た。次に、過酸化物粉末〔日本油脂（株）製、パーヘキ
サ ３Ｍ−４０〕０.５ｇを徐々に添加しながら、３分
間ロール混練した後、ロールから取り出し放冷した。Example 1 (Mixing of material) A roll surface temperature of 100 was obtained by using a two-roll type kneader having a diameter of 5 inches [MIXING ROLL Model No. 191TM manufactured by Yasuda Seiki Seisakusho, Ltd.].
The mixture was rotated at a temperature of ℃, ethylene-1-butene-dicyclopentadiene copolymer (hereinafter abbreviated as EBT: molar ratio of ethylene and 1-butene 90/10, iodine value 1
0, intrinsic viscosity [η] 1.0-135 ° C in decalin solvent
(Measured by the multi-point method in 1.) 100 g of pellets were melted and kneaded until a uniform thin plate was formed. Then, while cutting back the EBT plate in a molten state on the roll with a roll kneading work cutting knife, zinc oxide powder [manufactured by Wako Pure Chemical Industries, Ltd.,
Reagent special grade] 0.5 g, stearic acid powder [Wako Pure Chemical Industries, Ltd., reagent grade 1] 0.5 g, silica powder [Nippon Aerosil Co., Ltd., RM-50] 30 g, and polybutadiene liquid [Nippon Petroleum] A mixture prepared by previously mixing 10 g of Nisseki Polybutadiene B-300 manufactured by Kagaku Co., Ltd. was gradually added. After the addition was completed, roll kneading was continued for another 5 minutes. Then, an inorganic pigment [manufactured by Toyo Ink Mfg. Co.,
Y-3] 0.5 g was added, and the mixture was roll-kneaded for another 3 minutes. Next, while gradually adding 0.5 g of peroxide powder [Nippon Yushi-Seiyaku Co., Ltd., Perhexa 3M-40], the mixture was kneaded for 3 minutes by a roll, and then taken out from the roll and allowed to cool.
【００２０】（薄板状の中間素材の成形）前記のロール
混練後の素材を型温度を１００℃に設定した加熱圧縮成
形機〔（株）神藤金属工業所製、５０トン・プレス成形
機〕を用いて、金枠内で長さ１２cm、幅１２cm、厚さ１
mmの薄板状の中間素材に成形した。該中間素材は、粘着
を避けるため、ポリテトラフルオロエチレン製フィルム
〔日本バルカー（株）製、テフロン(R) フィルム〕に挟
んで室温で保存した。(Molding of thin plate-shaped intermediate material) A heat compression molding machine (manufactured by Shinto Metal Industry Co., Ltd., 50 ton press molding machine) in which the mold temperature of the material after the roll kneading is set to 100 ° C. Using, length 12 cm, width 12 cm, thickness 1 in the metal frame
It was formed into a thin plate-shaped intermediate material of mm. The intermediate material was sandwiched between a polytetrafluoroethylene film [Teflon (R) film manufactured by Nippon Bulker Co., Ltd.] and stored at room temperature to avoid sticking.
【００２１】（歯列保護矯正具の前駆体の成形）常法に
したがって歯科医院にて製作されたヒト上顎歯列弓の石
膏模型を、卓上型圧空成形機〔エルコデント社製、エル
コプレス(R) 〕の模型載置台上に載せ、一方、前記の中
間素材薄板の外周部を素材取り付け治具に挟んで水平に
取りつけ、同成形機の赤外線加熱装置を作動させて、中
間素材薄板を温度約６０℃まで加熱し軟化させた。次い
で、同成形機の５kg／cm2 ゲージの圧縮空気放出弁を開
き、加熱軟化した前記の中間素材薄板を、素材取り付け
治具に挟んだままで歯列弓の石膏模型上に急速降下さ
せ、同時に降下してくる空気導入筒内の圧縮空気圧で、
加熱軟化した中間素材薄板を歯列弓の石膏模型に押圧成
形すると同時に空気冷却し、未架橋状態の歯列保護矯正
具前駆体を成形した。(Molding of Precursor of Orthodontic Protector) A plaster model of a human maxillary dental arch manufactured in a dental clinic in accordance with a conventional method was used as a tabletop pressure molding machine [Elco Press (R) ) ] On the model mounting table, while holding the outer peripheral part of the intermediate material thin plate horizontally with the outer peripheral part of the intermediate material plate sandwiched between the material mounting jigs, operate the infrared heating device of the molding machine, and heat the intermediate material thin plate to about It was heated to 60 ° C. to soften it. Then, the compressed air release valve of 5 kg / cm 2 gauge of the molding machine was opened, and the heat-softened intermediate material thin plate was rapidly lowered onto the plaster model of the dental arch while being sandwiched between the material attachment jigs, and at the same time. Compressed air pressure in the descending air introduction cylinder,
The heat-softened intermediate material thin plate was pressed into a plaster model of a dental arch and simultaneously air-cooled to form a precursor for an orthodontic appliance in an uncrosslinked state.
【００２２】（外形仕上げ操作）未架橋状態の歯列保護
矯正具前駆体を石膏模型に取りつけた状態のままで、該
前駆体の外形を、鋭利な刃を備えたデザイン・ナイフを
用いて切断し、所望の外形を整えた。(External Finishing Operation) With the precursor of the orthodontic appliance orthodontic appliance in an uncrosslinked state still attached to the plaster model, the external shape of the precursor is cut using a design knife equipped with a sharp blade. Then, the desired outer shape was prepared.
【００２３】（架橋処理）外形を整え終わった該前駆体
を石膏模型から取外し、全表面に、石膏埋没・架橋処理
時の歯列保護矯正具表面肌荒れを防止する目的で、液状
シリコーン樹脂〔東芝シリコーン（株）製、ＴＳＥ３５
０〕を筆で塗布し、風乾して、該シリコーン樹脂を硬化
させた。次に、シリコーン樹脂で被覆した該前駆体を円
筒容器〔直径１３cm、深さ１２mm〕に入れ、石膏〔松風
（株）製、ユニストーン〕を常法にしたがって水和調製
した液に埋没させ、硬化させた。石膏が硬化したのち、
石膏埋没体を容器から取外し、約５０℃の熱風乾燥機内
で１２時間乾燥した。次いで、架橋反応を行なわせるた
め、歯列保護矯正具前駆体を埋没したままの石膏埋没体
を１２０℃の熱風乾燥機内で２４時間加熱処理した。(Crosslinking treatment) The precursor whose external shape has been adjusted is removed from the gypsum model, and a liquid silicone resin [Toshiba is used on the entire surface for the purpose of preventing roughening of the surface of the orthodontic appliance for plaster burial and crosslinking treatment. Silicone Co., Ltd., TSE35
0] was applied with a brush and air dried to cure the silicone resin. Next, the precursor coated with silicone resin was placed in a cylindrical container [diameter 13 cm, depth 12 mm], and gypsum [Matsufu Co., Ltd., Unistone] was immersed in a liquid prepared by hydration according to a conventional method, Cured. After the plaster has hardened,
The gypsum implant was removed from the container and dried in a hot air dryer at about 50 ° C for 12 hours. Then, in order to cause a crosslinking reaction, the gypsum implant with the dental prosthesis orthodontic precursor embedded therein was heat-treated in a hot air dryer at 120 ° C. for 24 hours.
【００２４】（歯列保護矯正具の取り出し）熱風乾燥機
から取り出し、放冷後、石膏破砕具を用いて石膏を割
り、架橋済みの歯列保護矯正具を取り出し、表面の硬化
したシリコーン樹脂被覆膜を剥離した。(Removal of Orthodontic Braces) After being taken out from the hot air dryer and allowed to cool, gypsum was broken using a gypsum crushing tool, cross-linked orthodontic braces were taken out, and the surface-hardened silicone resin coating was used. The covering film was peeled off.
【００２５】（脱臭抽出処理）次いで、沸騰水中で１時
間煮沸したのち取り出して放冷し、歯列保護矯正具の完
成品とした。(Deodorizing Extraction Treatment) Then, it was boiled in boiling water for 1 hour, taken out, and allowed to cool to give a completed orthodontic appliance.
【００２６】実施例２
実施例１の薄板状の中間素材の厚さを３ｍｍに変更した
ほかは、実施例１と全く同じ方法を用いて、所期の歯列
保護矯正具を作製した。Example 2 A desired orthodontic appliance was prepared in exactly the same manner as in Example 1, except that the thickness of the thin plate-shaped intermediate material in Example 1 was changed to 3 mm.
【００２７】実施例３
実施例１の薄板状の中間素材の厚さを４ｍｍに変更した
ほかは、実施例１と全く同じ方法を用いて、所期の歯列
保護矯正具を作製した。Example 3 A desired orthodontic appliance was prepared in the same manner as in Example 1 except that the thickness of the thin plate-shaped intermediate material in Example 1 was changed to 4 mm.
【００２８】[0028]
【発明の効果】本発明に係る歯列保護矯正具は、歯列保
護矯正具を作製するにあたり、使用中の耐久強度が従来
よりも強い素材を用い、衝撃吸収能力が従来よりも高い
ことにより、従来技術による歯列保護矯正具に伴う問題
点を解決した好適な歯列保護矯正具である。EFFECTS OF THE INVENTION The orthodontic appliance according to the present invention is manufactured by using a material having a higher durability than the conventional one when using the orthodontic appliance and having a higher impact absorbing capacity than the conventional material. A preferred dental orthodontic appliance that solves the problems associated with the conventional orthodontic appliance.
Claims (2)
合体を架橋してなる架橋体から形成されていることを特
徴とする歯列保護矯正具。1. An orthodontic appliance according to claim 1, which is formed of a cross-linked product obtained by cross-linking an ethylene-α-olefin-diene copolymer.
チリデンノルボルネンである請求項１に記載の歯列保護
矯正具。2. The orthodontic appliance according to claim 1, wherein the dienes are dicyclopentadiene and ethylidene norbornene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3201112A JPH0523354A (en) | 1991-07-17 | 1991-07-17 | Dental arch protective and othodontic tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3201112A JPH0523354A (en) | 1991-07-17 | 1991-07-17 | Dental arch protective and othodontic tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0523354A true JPH0523354A (en) | 1993-02-02 |
Family
ID=16435604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3201112A Withdrawn JPH0523354A (en) | 1991-07-17 | 1991-07-17 | Dental arch protective and othodontic tool |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0523354A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002355352A (en) * | 2001-06-01 | 2002-12-10 | Kuraray Co Ltd | Mouth guard and laminated sheet for mouth guard |
| JP2004519262A (en) * | 2000-07-24 | 2004-07-02 | ミルゲン リミテッド | Dental equipment |
| EP1473015A1 (en) * | 2003-04-28 | 2004-11-03 | Tomy Incorporated | Dental article and process for surface modification of dental article |
| US8889759B2 (en) | 2010-01-14 | 2014-11-18 | Kansai Paint Co., Ltd. | Active energy ray-curable composition, and coated article |
-
1991
- 1991-07-17 JP JP3201112A patent/JPH0523354A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004519262A (en) * | 2000-07-24 | 2004-07-02 | ミルゲン リミテッド | Dental equipment |
| JP2002355352A (en) * | 2001-06-01 | 2002-12-10 | Kuraray Co Ltd | Mouth guard and laminated sheet for mouth guard |
| JP4601860B2 (en) * | 2001-06-01 | 2010-12-22 | 株式会社クラレ | Mouth guard and laminated sheet for mouth guard |
| EP1473015A1 (en) * | 2003-04-28 | 2004-11-03 | Tomy Incorporated | Dental article and process for surface modification of dental article |
| JP2004346057A (en) * | 2003-04-28 | 2004-12-09 | Tomii Kk | Dental member and method for surface modification-treatment of dental member |
| US8889759B2 (en) | 2010-01-14 | 2014-11-18 | Kansai Paint Co., Ltd. | Active energy ray-curable composition, and coated article |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Application deemed to be withdrawn because no request for examination was validly filed |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19981008 |