JPS63174909A - Tooth model and production thereof - Google Patents
Tooth model and production thereofInfo
- Publication number
- JPS63174909A JPS63174909A JP62003852A JP385287A JPS63174909A JP S63174909 A JPS63174909 A JP S63174909A JP 62003852 A JP62003852 A JP 62003852A JP 385287 A JP385287 A JP 385287A JP S63174909 A JPS63174909 A JP S63174909A
- Authority
- JP
- Japan
- Prior art keywords
- tooth
- tooth model
- living
- glass
- mgo
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000011521 glass Substances 0.000 claims abstract description 35
- 239000013078 crystal Substances 0.000 claims abstract description 19
- 230000000704 physical effect Effects 0.000 claims abstract description 10
- 229910052586 apatite Inorganic materials 0.000 claims abstract description 5
- VSIIXMUUUJUKCM-UHFFFAOYSA-D pentacalcium;fluoride;triphosphate Chemical compound [F-].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O VSIIXMUUUJUKCM-UHFFFAOYSA-D 0.000 claims abstract description 5
- 239000002994 raw material Substances 0.000 claims abstract description 5
- 238000002425 crystallisation Methods 0.000 abstract description 11
- 230000008025 crystallization Effects 0.000 abstract description 11
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 8
- 239000000203 mixture Substances 0.000 abstract description 8
- DLYUQMMRRRQYAE-UHFFFAOYSA-N tetraphosphorus decaoxide Chemical compound O1P(O2)(=O)OP3(=O)OP1(=O)OP2(=O)O3 DLYUQMMRRRQYAE-UHFFFAOYSA-N 0.000 abstract description 6
- 229910011255 B2O3 Inorganic materials 0.000 abstract description 4
- 229910052681 coesite Inorganic materials 0.000 abstract description 4
- 229910052906 cristobalite Inorganic materials 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000000377 silicon dioxide Substances 0.000 abstract description 4
- 235000012239 silicon dioxide Nutrition 0.000 abstract description 4
- 229910052682 stishovite Inorganic materials 0.000 abstract description 4
- 229910052905 tridymite Inorganic materials 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000002844 melting Methods 0.000 abstract description 3
- 230000008018 melting Effects 0.000 abstract description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 2
- 229910052593 corundum Inorganic materials 0.000 abstract 2
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 2
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Li2O Inorganic materials [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 abstract 1
- 229910000272 alkali metal oxide Inorganic materials 0.000 abstract 1
- 238000000137 annealing Methods 0.000 abstract 1
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 abstract 1
- 238000013329 compounding Methods 0.000 abstract 1
- XUCJHNOBJLKZNU-UHFFFAOYSA-M dilithium;hydroxide Chemical compound [Li+].[Li+].[OH-] XUCJHNOBJLKZNU-UHFFFAOYSA-M 0.000 abstract 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 abstract 1
- 238000009740 moulding (composite fabrication) Methods 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 description 12
- 239000000047 product Substances 0.000 description 12
- 238000000465 moulding Methods 0.000 description 10
- 210000003298 dental enamel Anatomy 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- NWXHSRDXUJENGJ-UHFFFAOYSA-N calcium;magnesium;dioxido(oxo)silane Chemical compound [Mg+2].[Ca+2].[O-][Si]([O-])=O.[O-][Si]([O-])=O NWXHSRDXUJENGJ-UHFFFAOYSA-N 0.000 description 3
- 239000006103 coloring component Substances 0.000 description 3
- 210000004268 dentin Anatomy 0.000 description 3
- 238000004031 devitrification Methods 0.000 description 3
- 229910052637 diopside Inorganic materials 0.000 description 3
- 239000002667 nucleating agent Substances 0.000 description 3
- 238000005191 phase separation Methods 0.000 description 3
- QORWJWZARLRLPR-UHFFFAOYSA-H tricalcium bis(phosphate) Chemical compound [Ca+2].[Ca+2].[Ca+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O QORWJWZARLRLPR-UHFFFAOYSA-H 0.000 description 3
- 239000011575 calcium Substances 0.000 description 2
- 239000001506 calcium phosphate Substances 0.000 description 2
- 229910000389 calcium phosphate Inorganic materials 0.000 description 2
- 235000011010 calcium phosphates Nutrition 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 229910052573 porcelain Inorganic materials 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000004640 Melamine resin Substances 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910052661 anorthite Inorganic materials 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 1
- 238000009750 centrifugal casting Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000002178 crystalline material Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- GWWPLLOVYSCJIO-UHFFFAOYSA-N dialuminum;calcium;disilicate Chemical group [Al+3].[Al+3].[Ca+2].[O-][Si]([O-])([O-])[O-].[O-][Si]([O-])([O-])[O-] GWWPLLOVYSCJIO-UHFFFAOYSA-N 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000002932 luster Substances 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- -1 oxides Chemical class 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
Landscapes
- Instructional Devices (AREA)
- Dental Preparations (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
本発明は、生体歯牙に近似した物性及び外観を有してい
るため特に歯学教育過程における治療の切削実習用とし
て、また供覧用として好適な歯牙模型及びその製造方法
に関するものである９［従来技術とその問題点］
従来より歯科医学生の治療の実習においては、一部抜去
された生体歯牙が切削用として使用されてきたが、近年
では生体歯牙の入手が困難であり、また高価であるため
、主に各種の材料からなる歯牙模型、例えばメラミン樹
脂などの合成樹脂製歯牙模型、樹脂と陶材からなる複合
合成樹脂製歯牙模型などが使用されるようになってきて
いる。また供覧用としてもこれらの材料からなる歯牙模
型が使用されている。しかしながら合成樹脂製歯牙模型
は、生体歯牙と比較すると物性と外観が相違しており、
すなわち生体歯牙と比較して硬度が低すぎるため切削す
る時の感触が生体歯牙と大きく異なり、また生体歯牙が
半透光性を有し光沢があるため審美性に優れているのに
対して、不透明で光沢がないため審美性が悪く、しかも
手ざわりが生体歯牙とかけはなれている。さらに複合合
成樹脂製歯牙模型は、外観上生体歯牙に近似しているも
のの樹脂と陶材との接着が弱いため切削時に欠けが生じ
やすいという問題点がある。[Detailed Description of the Invention] [Industrial Fields of Application] The present invention has physical properties and appearance similar to living teeth, and is therefore particularly suitable for cutting practice in treatment in the dental education process and for viewing. Related to tooth models and their manufacturing methods 9 [Prior art and its problems] Conventionally, partially extracted living teeth have been used for cutting in dental student treatment training, but in recent years Living teeth are difficult to obtain and expensive, so tooth models are mainly made of various materials, such as tooth models made of synthetic resin such as melamine resin, tooth models made of composite synthetic resin made of resin and porcelain, etc. It is starting to be used. Tooth models made of these materials are also used for viewing purposes. However, synthetic resin tooth models have different physical properties and appearance compared to living teeth.
In other words, the hardness is too low compared to living teeth, so the feel when cutting is very different from living teeth, and living teeth are semi-transparent and glossy, so they have excellent aesthetics. Because they are opaque and lack luster, they are not aesthetically pleasing, and their texture is far different from that of living teeth. Furthermore, although tooth models made of composite synthetic resin resemble living teeth in appearance, the bond between the resin and the porcelain is weak, so they are susceptible to chipping during cutting.
また上記各種の歯牙模型以外にも生体歯牙に近似した物
性、特に硬度を有するリン酸カルシウム結晶化ガラスか
らなる歯牙模型が提案されているが、この結晶化ガラス
は、基本的にリンとカルシウムの２成分からなるもので
ガラスが失透しやすく連続的に金型を用いたプレス成型
は困難であるため単体ごとにロストワックス法によって
鋳造成形する必要があり大量生産に不向きである。また
この結晶化ガラスは不透明で審美性が悪く着色剤を添加
しても生体歯牙と同じ外観を呈するものは得られず、さ
らに切削時に欠けやすいという特性上の問題点がある。In addition to the various tooth models mentioned above, tooth models made of calcium phosphate crystallized glass, which has physical properties similar to those of living teeth, especially hardness, have been proposed, but this crystallized glass basically consists of two components: phosphorus and calcium. Since the glass tends to devitrify and continuous press molding using a mold is difficult, each individual piece must be cast by the lost wax method, making it unsuitable for mass production. In addition, this crystallized glass is opaque and has poor aesthetics, and even if a coloring agent is added, it is impossible to obtain a tooth that has the same appearance as a living tooth.Furthermore, there are problems in terms of its characteristics in that it is easily chipped during cutting.
［発明の目的］
本発明は上記問題点に鑑みなされたもので、生体歯牙と
物性及び外観が近似し、特に切削加工性と審美性が生体
歯牙に近似しており、また金型を用いて成形できるため
大量生産が可能である歯牙模型を提供することを目的と
するものである。[Purpose of the Invention] The present invention has been made in view of the above problems, and has physical properties and appearance similar to those of living teeth, particularly machinability and aesthetics similar to those of living teeth, and a metal mold that is similar to living teeth. The object of the present invention is to provide a tooth model that can be molded and therefore mass-produced.
［発明の構成］
本発明の歯牙模型は、Ｒ２０，とＣａＯ以外にＳｉＯ２
、入１２０３ 、ＭｇＯ、Ｒ２０、Ｂ２Ｏ３、ＴｉＯ□
の各成分を必須成分として含有する結晶化ガラスを用い
ることによって上記の目的を達成しようとするもので、
重量％で、５ｉｎ２２（１−５０％、Ａｌ２０３５〜２
５％、ＣａＯ１Ｏ〜４０％、Ｒ２０５５〜３０％、Ｍｇ
Ｏ ３〜１５％、Ｒ２０（ＲはＬｉ、Ｎａ、にを示す）
０．５〜８％、８２０３０．０５〜８％、ＴｉＯ２０
５５〜１０％の組成を有し、アパタイト結晶を析出して
いることを特徴とする。[Configuration of the Invention] The tooth model of the present invention contains SiO2 in addition to R20 and CaO.
, entered 1203 , MgO, R20, B2O3, TiO□
The above objective is achieved by using crystallized glass containing each of the following components as essential components.
In weight%, 5in22 (1-50%, Al2035-2
5%, CaO1O~40%, R2055~30%, Mg
O 3-15%, R20 (R indicates Li, Na, etc.)
0.5-8%, 82030.05-8%, TiO20
It is characterized by having a composition of 55 to 10% and precipitated apatite crystals.
本発明の歯牙模型の特徴は、上記成分の中で、Ｍｇｏ
、Ｒ２０、Ｂ２０．、ＴｉＯ２の各成分を共存させるこ
とによって物性及び外観、特に切削加工性、審美性を生
体歯牙に近似させ、且つ金型による成形を可能にしたこ
とである。The tooth model of the present invention is characterized in that among the above components, Mgo
, R20, B20. By coexisting each component of TiO2, the physical properties and appearance, especially machinability and aesthetics, can be approximated to those of a living tooth, and it can be molded using a mold.
すなわちＴｉＯ２は均一な結晶化を促す核成形剤として
含有されるが単独で用いると結晶が緻密に析出するため
結晶物の透光性が低くなりすぎて審美性が悪くなる。し
かしながらＢ２Ｏ３を共存させると熱処理する際に結晶
化と共にガラス内で分相が起こり、分相ガラス特有の乳
白色を示すため白色半透光性である生体歯牙に近似した
外観になる。That is, TiO2 is contained as a nucleating agent that promotes uniform crystallization, but when used alone, the crystals precipitate densely, resulting in too low light transmittance of the crystalline material, resulting in poor aesthetics. However, when B2O3 is present, phase separation occurs in the glass along with crystallization during heat treatment, resulting in a milky white color unique to phase split glass, resulting in an appearance similar to a white, semi-transparent living tooth.
またＭｇＯと［１２０，とを共存させるとジオプサイド
結晶（ＭｇＯ・ＣａＯ・２ＳｉＯ□）の析出が促進され
、結晶化ガラス中に主結晶である微細なアパタイト結晶
（Ｃａ＋ｏ（ＰＯ４）６０ ）以外にも針状の大きなジ
オプサイド結晶（ｍｇｏ・ＣａＯ・２ＳｉＯ□）が析出
するためガラスが特異な分相状態を呈して且つ結晶化し
た構造になり切削加工性を良くすると共に欠けを抑える
ことができる。Furthermore, when MgO and [120, coexist, the precipitation of diopside crystals (MgO・CaO・2SiO□) is promoted, and in addition to the fine apatite crystals (Ca+o(PO4)60) which are the main crystals in crystallized glass, Since large acicular diopside crystals (mgo.CaO.2SiO□) are precipitated, the glass exhibits a unique phase separation state and has a crystallized structure, which improves machinability and suppresses chipping.
さらにＢ２０．とＲ２０とを共存させると、結晶物の硬
度があまり高くならないように抑制して切削加工性を良
くすると同時に、金型で成形されたガラスをそのまま結
晶化しても表面が生体歯牙のエナメル質と同様の光沢の
ある外観を示す。Furthermore, B20. By coexisting R20 and R20, the hardness of the crystals is suppressed from becoming too high, improving machinability, and at the same time, even if the glass formed in the mold is crystallized as it is, the surface will not resemble the enamel of a living tooth. Shows a similar shiny appearance.
ＭｇＵとＲ２０は、結晶物の硬度をあまり上がらないよ
うに抑制して切削加工性を良好にすると共にガラスの粘
性を温度によって変化が大きくなるように設定している
ため金型による成形を容易にする。しかしながら両成分
の合量が１８％以上になると失透性が強くなり、成形し
にくくなる。MgU and R20 suppress the hardness of the crystals so as not to increase too much and improve machinability, and the viscosity of the glass is set so that it changes greatly depending on the temperature, making it easy to mold with a mold. do. However, when the total amount of both components exceeds 18%, devitrification becomes strong and molding becomes difficult.
本発明において結晶化ガラスの組成範囲を上記のように
限定したのは以下の理由による。The reason why the composition range of the crystallized glass in the present invention is limited as described above is as follows.
ＳｉＯ２が２０％より少ない場合は、結晶化物がもろく
なり切削中欠けやすくなる。５０％より多い場合は、ガ
ラスが硬くなりすぎて切削し難くなる。If SiO2 is less than 20%, the crystallized material becomes brittle and is likely to chip during cutting. If it exceeds 50%, the glass becomes too hard and difficult to cut.
＾１□０３が５％より少ない場合は、ガラスが失透しや
すく、また成形し難くなると共に結晶化の際変形が生じ
やすい。２５％より多い場合は溶融温度が高くなり均一
な結晶化ガラスが得難くなる。When ^1□03 is less than 5%, the glass tends to devitrify, becomes difficult to mold, and is likely to be deformed during crystallization. When the amount is more than 25%, the melting temperature becomes high and it becomes difficult to obtain uniform crystallized glass.
ＣａＯが１０％より少ない場合は、結晶化が弱く切削中
欠けやすくなる。４０％より多い場合は、結晶化物がも
ろくなり切削中欠けやすくなる。When CaO is less than 10%, crystallization is weak and chipping occurs easily during cutting. When the amount is more than 40%, the crystallized material becomes brittle and easily chipped during cutting.
Ｐ２Ｏ５が５％より少ない場合は、結晶化が弱く切削中
欠けやすくなると共に色調が透明になる。３０％より多
い場合はガラスの失透性が強くなりすぎて生体歯牙の色
調が得られない。When P2O5 is less than 5%, crystallization is weak and chipping occurs easily during cutting, and the color tone becomes transparent. If it is more than 30%, the devitrification of the glass becomes too strong and the color tone of living teeth cannot be obtained.
ＭｇＯが３％より少ない場合は、結晶化が弱く且つ硬度
が高くなるため切削加工性が悪い上色調が透明になる。When the MgO content is less than 3%, crystallization is weak and hardness is high, resulting in poor machinability and transparent color tone.
１５％より多い場合は、ガラスの失透性が強くなりす
ぎて成形が困難になる。When the amount is more than 15%, the devitrification of the glass becomes too strong and molding becomes difficult.
Ｒ２０が０．５％より少ない場合は、硬度が高くなりす
ぎて切削加工性が悪くなる。８％より多い場合は、結晶
化の際変形を生じやすい。When R20 is less than 0.5%, the hardness becomes too high and machinability deteriorates. If it is more than 8%, deformation tends to occur during crystallization.
ｌＩ２０３は、上記したように本発明において重要な成
分であるが、０．０５％より少ない場合は、添加の効果
が得られず、５％より多い場合は結晶化が強くなりすぎ
て審美性が悪くなると共に結晶化の際変形を生じやすい
。As mentioned above, lI203 is an important component in the present invention, but if it is less than 0.05%, the effect of addition cannot be obtained, and if it is more than 5%, crystallization becomes too strong and aesthetics are impaired. In addition to deterioration, deformation is likely to occur during crystallization.
ＴｉＯ２は核形成剤として含有されるが、０．５％より
少ない場合は核形成剤としての効果が少なく、１０％よ
り多い場合は結晶化が強くなりすぎて審美性が損なわれ
る。TiO2 is contained as a nucleating agent, but if it is less than 0.5%, it is less effective as a nucleating agent, and if it is more than 10%, crystallization becomes too strong and aesthetics are impaired.
本発明に係る歯牙模型は、上記組成を有するガラスにな
るように調合した原料を溶融し、金型に流し込んで成形
した後徐冷し、次いで熱処理を施して結晶化させること
によって製造され、主結晶として生体歯牙を構成してい
るアパタイト結晶（Ｃａ１０（ＰＯ４）６０ ）が析出
し、それ以外に第三陽酸カルシウム結晶（Ｃａｓ（ＰＯ
４）ｚ ）やジオプサイド結晶（ＭｇＯ−ＣａＯ・２Ｓ
ｉＯｚ ）が析出するため硬度、切削加工性が生体歯牙
に近似しており、また分相乳白化しているため半透明で
審美性に優れている。The tooth model according to the present invention is manufactured by melting a raw material prepared to form glass having the above composition, pouring it into a mold, shaping it, slowly cooling it, and then subjecting it to heat treatment to crystallize it. Apatite crystals (Ca10(PO4)60), which constitute living teeth, are precipitated as crystals, and in addition, tertiary calcium phosphate crystals (Cas(PO4)60) are precipitated.
4) z ) and diopside crystal (MgO-CaO・2S
Due to the precipitation of iOz ), the hardness and machinability are similar to those of living teeth, and the phase separation is opalescent, making it translucent and excellent in aesthetics.
本発明の製造方法は、ロストワックス法等の鋳造法や一
旦ガラスを粉末にし、成形後加熱処理する方法に比べて
、製造工程が簡単で大量生産に向いている。また一旦ガ
ラス粉末にする方法は、アノーサイト結晶（ＣａＯ・＾
１□０３・２Ｓｉ０２）を析出しやすく、この結晶が析
出すると硬度が高くなりすぎて切削加工が困難になるた
め好ましくない。The manufacturing method of the present invention has a simpler manufacturing process and is suitable for mass production than a casting method such as a lost wax method or a method in which glass is once powdered and heated after molding. In addition, the method to make glass powder once is anorthite crystal (CaO・^
1□03.2Si02) tends to precipitate, and if these crystals precipitate, the hardness becomes too high and cutting becomes difficult, which is not preferable.
上記組成及び製造方法からなる本発明の歯牙模型は、物
性・外観ともに生体歯牙に近似しているが、外観上生体
歯牙により似せる必要がある場合は、上記結晶化ガラス
１００重量％に対し、Ｖ 、 Ｃｒ、Ｍｎ、 Ｆｅ、
Ｃｏ、 Ｎｉ、 Ｃｕ、＾ｇ、 Ａｕ、 Ｃｅ、 Ｎｄ
等の酸化物、ハロゲン化物、水酸化物、炭酸塩等各種塩
よりなる群かん選ばれた１種あるいは２種以上の着色成
分を０．００２〜５重量％添加するか、あるいは上薬を
着色グレージングすることによって結晶化ガラスを着色
させる。しかしながら着色成分を用いる場合その量が０
．００２％より少ない場合は、着色成分としての効果が
得られず、また５％より多い場合は、色調が濃くなりす
ぎて生体歯牙の色調とはかけ離れてしまう。The tooth model of the present invention having the above composition and manufacturing method approximates a living tooth in both physical properties and appearance, but if it is necessary to make the appearance more similar to a living tooth, V , Cr, Mn, Fe,
Co, Ni, Cu, ＾g, Au, Ce, Nd
Add 0.002 to 5% by weight of one or more coloring components selected from the group consisting of various salts such as oxides, halides, hydroxides, carbonates, etc., or color the top layer. Color crystallized glass by glazing. However, when using a coloring component, the amount is 0.
．． If it is less than 0.02%, no effect as a coloring component can be obtained, and if it is more than 5%, the color tone will be too dark and will be far different from the color tone of living teeth.
さらに本発明の歯牙模型は、生体歯牙のエナメル質部と
象牙質部に類似した構造にすることによって、物性及び
外観を生体歯牙に似せることも可能である。すなわち生
体歯牙のエナメル質部に相当する表面部が象牙質部に相
当する内部に比べて硬度が高くなるように本発明のガラ
ス組成範囲内における２種類の結晶化ガラスを用いて構
成することによって切削する時の３触を生体歯牙により
似たものにすることができ、またエナメル質部に相当す
る表面部に透明性の高い結晶化ガラスを用い、象牙質部
に相当する内部に着色した結晶化ガラスを用いることに
よって外観を生体歯牙に近似させることができる。Further, the tooth model of the present invention can have physical properties and appearance similar to living teeth by having a structure similar to the enamel and dentin parts of living teeth. That is, by constructing the living tooth using two types of crystallized glass within the glass composition range of the present invention so that the surface part corresponding to the enamel part of the living tooth has higher hardness than the inside part corresponding to the dentin part. The touch during cutting can be made to more closely resemble a living tooth, and the surface area corresponding to the enamel area is made of highly transparent crystallized glass, while the interior area corresponding to the dentin area is made of colored crystals. By using vitrified glass, the appearance can be made to resemble a living tooth.
［実施例］ 以下に本発明の歯牙模型を実施例に基づいて説明する。[Example] The tooth model of the present invention will be explained below based on examples.
次表は本発明における結晶化ガラス、従来のリン酸カル
シウム結晶化ガラス及び生体歯牙（エナメル質部）の比
較表であり、各々についてビッカース硬度、半透光性、
エアータービンによる切削性を示した。The following table is a comparison table of the crystallized glass of the present invention, conventional calcium phosphate crystallized glass, and living tooth (enamel part), and each has Vickers hardness, semitranslucency,
The machinability by air turbine was demonstrated.
以 下 余 白
上記表の本発明品の各試料は次のように製作した。各種
の歯牙模型の金型を鋳込成形機、又はプレス成形機にセ
ットし、各試料の組成になるように調合したガラス原料
を白金ルツボを用いて１３５０〜１５００℃で均一に溶
融し、この溶融ガラスを一定量ずつ連続的に金型に供給
して歯牙模型のガラス成形体を作製する。ただし上記成
形機を用いる場合奥歯の模型は主として鋳込成形機で成
形できるが、前歯の場合はプレス成形機で成形する方が
形状安定性は良い。次にガラス成形体を金型からはずし
、徐冷した後、８００〜９００℃で熱処理を施して結晶
化させることによって製作した。Below Margin Each sample of the product of the present invention shown in the above table was manufactured as follows. The molds for various tooth models are set in a cast molding machine or a press molding machine, and glass raw materials prepared to have the composition of each sample are uniformly melted at 1350 to 1500°C using a platinum crucible. A fixed amount of molten glass is continuously supplied to a mold to produce a glass molded tooth model. However, when using the above-mentioned molding machine, the model of the back teeth can be mainly molded with a casting molding machine, but in the case of the front teeth, the shape stability is better when molded with a press molding machine. Next, the glass molded body was removed from the mold, slowly cooled, and then heat treated at 800 to 900°C to crystallize it.
また従来品は、通常のロストワックス法により歯牙の形
状にリン酸塩系埋没材を用いて鋳型を作り、試料Ｎ［Ｌ
７の組成を有するガラスを遠心鋳造法によって成形し
た後、９００℃で１時間熱処理することによって製作し
た。In addition, with the conventional product, a mold is made using a phosphate-based investment material in the shape of a tooth using the usual lost wax method, and sample N[L
It was manufactured by molding glass having composition No. 7 by centrifugal casting and then heat-treating it at 900° C. for 1 hour.
こうして製作した本発明品と従来品とを比較すると本発
明品が生体歯牙と同じ０．５の半透光性を有し、審美性
に優れているのに対して従来品は半透光性がＯであり外
観上生体歯牙と大きく異なっている。また硬度について
は本発明品と同様に従来品も高い値を示したが、エアー
タービンによる切削性について本発明品が良好であるの
に対し、Ｕｅ来品は欠けがひどか−）な。Comparing the product of the present invention and the conventional product manufactured in this way, the product of the present invention has a semi-transparent property of 0.5, which is the same as a living tooth, and has excellent aesthetics, whereas the conventional product has a semi-transparent property. is O, and its appearance is significantly different from that of a living tooth. Regarding hardness, the conventional product also showed a high value as well as the product of the present invention, but the product of the present invention had good machinability with an air turbine, whereas the product of the present invention had severe chipping.
さらに本発明品を手で触れるとなめらかで生体歯牙の手
ざわりに近いものであったが、従来品は。Furthermore, when I touched the product of the present invention, it was smooth and had a texture similar to that of a living tooth, whereas the conventional product had a texture similar to that of a living tooth.
表面がマット状でざらざらしていた。The surface was matte and rough.
［発明の効果］
以上のように本発明の歯牙模型は、物性と外観が生体歯
牙に近似しており、特に切削加工性と審美性が生体歯牙
に近来しているため切削実習用歯牙模型として、また供
覧用の歯牙模型として好適である。さらに金型を用いた
成形が可能であるため安価に大量生産することができる
。[Effects of the Invention] As described above, the tooth model of the present invention has physical properties and appearance similar to living teeth, and in particular, machinability and aesthetics are close to those of living teeth, so it can be used as a tooth model for cutting training. It is also suitable as a tooth model for viewing. Furthermore, since it can be molded using a mold, it can be mass-produced at low cost.
特許出願人 日本電気硝子株式会社 代表者 岸 １）清 作Patent applicant: Nippon Electric Glass Co., Ltd. Representative Kishi 1) Kiyoshi Saku
Claims (2)
＿３５〜２５％、ＣａＯ１０〜４０％、Ｐ＿２Ｏ＿５５
〜３０％、ＭｇＯ３〜１５％、Ｒ＿２Ｏ（ＲはＬｉ、Ｎ
ａ、Ｋを示す）０．５〜８％、Ｂ＿２Ｏ＿３０．０５〜
８％、ＴｉＯ＿２０．５〜１０％の組成を有し、主結晶
としてアパタイト結晶を析出した結晶化ガラスからなり
、物性及び外観が生体歯牙に近似していることを特徴と
する歯牙模型。(1) In weight%, SiO_220-50%, Al_2O
_35-25%, CaO10-40%, P_2O_55
~30%, MgO3~15%, R_2O (R is Li, N
a, K is shown) 0.5-8%, B_2O_30.05-
8%, TiO_20.5 to 10%, and is made of crystallized glass in which apatite crystals are precipitated as main crystals, and is characterized by having physical properties and appearance similar to living teeth.
＿３５〜２５％、ＣａＯ１０〜４０％、Ｐ＿２Ｏ＿５５
〜３０％、ＭｇＯ３〜１５％、Ｒ＿２Ｏ（ＲはＬｉ、Ｎ
ａ、Ｋを示す）０．５〜８％、Ｂ＿２Ｏ＿３０．０５〜
８％、ＴｉＯ＿２０．５〜１０％の組成を有するガラス
になるように調合した原料を溶融し、金型に流し込んで
成形した後徐冷し、次いで熱処理を施して結晶化させる
ことを特徴とする歯牙模型の製造方法。(2) In weight%, SiO_220-50%, Al_2O
_35-25%, CaO10-40%, P_2O_55
~30%, MgO3~15%, R_2O (R is Li, N
a, K is shown) 0.5-8%, B_2O_30.05-
8%, TiO_20.5% to 10%, the raw materials are melted, poured into a mold, shaped, slowly cooled, and then heat treated to crystallize. A method of manufacturing a tooth model.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62003852A JPS63174909A (en) | 1987-01-09 | 1987-01-09 | Tooth model and production thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62003852A JPS63174909A (en) | 1987-01-09 | 1987-01-09 | Tooth model and production thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63174909A true JPS63174909A (en) | 1988-07-19 |
Family
ID=11568713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62003852A Pending JPS63174909A (en) | 1987-01-09 | 1987-01-09 | Tooth model and production thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63174909A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006045202A (en) * | 2004-06-28 | 2006-02-16 | Degudent Gmbh | Opaque ceramic for dentistry, production method therefor and using method therefor |
| JP2006163331A (en) * | 2004-12-07 | 2006-06-22 | Shiyoufuu:Kk | Tooth shape for gnathick tooth model |
| JP2008180845A (en) * | 2007-01-24 | 2008-08-07 | Shiyoufuu:Kk | Tooth of dentin ceramics and alumina ceramics bonded with glass composition |
| EP2037430A1 (en) * | 2006-06-12 | 2009-03-18 | Kabushiki Kaisha Shofu | Tooth for jaw tooth model and method of producing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137853A (en) * | 1983-12-22 | 1985-07-22 | Hoya Corp | High-strength crystallized glass containing apatite crystal and its production |
| JPS61236632A (en) * | 1985-03-29 | 1986-10-21 | Nippon Electric Glass Co Ltd | Crystallized glass for organism |
-
1987
- 1987-01-09 JP JP62003852A patent/JPS63174909A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60137853A (en) * | 1983-12-22 | 1985-07-22 | Hoya Corp | High-strength crystallized glass containing apatite crystal and its production |
| JPS61236632A (en) * | 1985-03-29 | 1986-10-21 | Nippon Electric Glass Co Ltd | Crystallized glass for organism |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006045202A (en) * | 2004-06-28 | 2006-02-16 | Degudent Gmbh | Opaque ceramic for dentistry, production method therefor and using method therefor |
| JP2006163331A (en) * | 2004-12-07 | 2006-06-22 | Shiyoufuu:Kk | Tooth shape for gnathick tooth model |
| EP2037430A1 (en) * | 2006-06-12 | 2009-03-18 | Kabushiki Kaisha Shofu | Tooth for jaw tooth model and method of producing the same |
| EP2037430A4 (en) * | 2006-06-12 | 2011-04-13 | Shofu Kk | Tooth for jaw tooth model and method of producing the same |
| US8425233B2 (en) | 2006-06-12 | 2013-04-23 | Kabushiki Kaisha Shofu | Tooth for jaw tooth model and method for producing the same |
| JP5308154B2 (en) * | 2006-06-12 | 2013-10-09 | 株式会社松風 | Tooth for jaw model and manufacturing method thereof |
| JP2008180845A (en) * | 2007-01-24 | 2008-08-07 | Shiyoufuu:Kk | Tooth of dentin ceramics and alumina ceramics bonded with glass composition |
| JP4514231B2 (en) * | 2007-01-24 | 2010-07-28 | 株式会社松風 | Dentine ceramic and alumina ceramic teeth bonded with glass composition |
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