JPH02213334A - Manufacture of tooth crown - Google Patents
Manufacture of tooth crownInfo
- Publication number
- JPH02213334A JPH02213334A JP1034798A JP3479889A JPH02213334A JP H02213334 A JPH02213334 A JP H02213334A JP 1034798 A JP1034798 A JP 1034798A JP 3479889 A JP3479889 A JP 3479889A JP H02213334 A JPH02213334 A JP H02213334A
- Authority
- JP
- Japan
- Prior art keywords
- metal plate
- crown
- shape
- liquid pressure
- mold
- 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 13
- 210000000332 tooth crown Anatomy 0.000 title description 7
- 238000000034 method Methods 0.000 claims abstract description 23
- 239000002184 metal Substances 0.000 claims abstract description 22
- 238000000465 moulding Methods 0.000 abstract description 7
- 239000007788 liquid Substances 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 5
- 230000035939 shock Effects 0.000 abstract 3
- 238000005266 casting Methods 0.000 description 4
- 238000009527 percussion Methods 0.000 description 1
Landscapes
- Dental Prosthetics (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ この発明は、歯冠の製造方法に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a method of manufacturing a dental crown.
［従来の技術］
従来、金属歯冠は、鋳造法によって製造されている。即
ち、歯型をとり、この歯型に歯科用金属を注入して歯冠
を製造している。[Prior Art] Conventionally, metal crowns have been manufactured by a casting method. That is, a tooth mold is taken and a dental metal is injected into the tooth mold to manufacture a dental crown.
［発明が解決しようとする課題］ しかし、上述した鋳造による歯冠の製造法は。[Problem to be solved by the invention] However, the manufacturing method of dental crowns by casting mentioned above.
歯冠の肉厚を薄くすることが困難なので、歯を必要以上
に削らねばならず、この点に問題があった。Since it is difficult to reduce the thickness of the tooth crown, the tooth must be ground down more than necessary, which poses a problem.
従って、この発明の目的は、薄肉の歯冠を簡単に製造す
ることができる方法を提供することにある。Therefore, an object of the present invention is to provide a method for easily manufacturing thin-walled dental crowns.
［課題を解決するための手段］
第１発明は、歯冠形状の凹型内に、半球状に予成形した
金属板を装入し、そして、衝撃液圧成形法によって、前
記金属板を前記歯冠形状に成形することに特徴を有し、
そして、第２発明は、歯冠形状の凸型に、半球状に予成
形した金属板を被せ、そして、衝撃液圧成形法によって
、前記金属板を前記歯冠形状に成形することに特徴を有
するものである。[Means for Solving the Problems] The first invention is to insert a hemispherical preformed metal plate into a tooth crown-shaped concave mold, and then mold the metal plate into the tooth by an impact hydraulic forming method. It is characterized by being formed into a crown shape,
The second invention is characterized in that a metal plate preformed into a hemispherical shape is placed over a convex mold having a crown shape, and the metal plate is formed into the crown shape by an impact hydraulic forming method. It is something that you have.
次に、第１発明の、歯冠の製造方法の一実施態様を図面
を参照しながら説明する。Next, an embodiment of the method for manufacturing a dental crown according to the first invention will be described with reference to the drawings.
第１図は、第１発明の、歯冠の製造方法の一実施態様を
示す断面図である。FIG. 1 is a sectional view showing an embodiment of the method for manufacturing a dental crown according to the first invention.
第１図に示すように、第１発明は、歯冠形状の凹型１を
成形する。次いで、半球状に予成形したＴｉ等の薄肉の
金属板２を凹型１内に装入する。As shown in FIG. 1, the first invention forms a concave mold 1 in the shape of a tooth crown. Next, a thin metal plate 2 made of Ti or the like which has been preformed into a hemispherical shape is charged into the concave mold 1.
そして、衝撃液圧成形法によって、金属板２を歯冠形状
に成形する。Then, the metal plate 2 is formed into a tooth crown shape by an impact hydraulic forming method.
上記衝撃液圧成形法は、第２図に示すように。The above-mentioned impact hydraulic molding method is as shown in FIG.
水が溜められた容器３の底部に、上記凹型１を上記Ｔｉ
製金属板２と共に固定し、そして、容器３内の水４に向
けてプラスチック製の弾丸５を撃ち込むものである。こ
れによって生じた衝撃液圧により、金属板２は、凹型１
の形状、即ち、歯冠に成形される。Place the concave mold 1 on the bottom of the container 3 where water is stored.
It is fixed together with a metal plate 2, and a plastic bullet 5 is shot into the water 4 inside the container 3. The impact liquid pressure generated by this causes the metal plate 2 to move into the concave shape 1.
It is molded into the shape of a tooth crown.
衝撃液圧成形法によれば、通常のプレス成形法に比べて
スプリングバンクによる成形精度の問題は生じず、しか
も、鋳造法のような複雑な工程を要すことなく、鋳造法
と同等かそれ以上の成形精度を得ることができる。According to the impact hydraulic forming method, there are no problems with forming accuracy due to spring banks compared to normal press forming methods, and it does not require complicated processes like casting methods, and is equivalent to or even better than casting methods. It is possible to obtain higher molding accuracy.
次に、第２発明の、歯冠の製造方法の一実施態様を図面
を参照しながら説明する。Next, an embodiment of the method for manufacturing a dental crown according to the second invention will be described with reference to the drawings.
第３図は、第２発明の、歯冠の製造方法の一実施態様を
示す断面図である。FIG. 3 is a sectional view showing an embodiment of the method for manufacturing a dental crown according to the second invention.
第３図に示すように、第２発明は、歯冠形状の凸型６を
成形する。次いで、半球状に予成形したＴｉ等の薄肉の
金属板２を凸型６に被せる。そして、前述した衝撃液圧
成形法によって、金属板２を歯冠形状に成形するもので
ある。As shown in FIG. 3, in the second invention, a crown-shaped convex mold 6 is formed. Next, the convex mold 6 is covered with a thin metal plate 2 made of Ti or the like which has been preformed into a hemispherical shape. Then, the metal plate 2 is formed into a tooth crown shape by the above-mentioned impact hydraulic forming method.
第２発明によって製造された歯冠は、第１発明によって
製造された歯冠と同様に薄肉で高い成形精度を有してい
る。The dental crown manufactured according to the second invention has a thin wall and high molding accuracy, similar to the dental crown manufactured according to the first invention.
［発明の効果］
以上説明したように、この発明によれば、ｍ撃液圧成形
法によって、薄肉の歯冠を高精度で製造することができ
るといった有用な効果がもたらされる。[Effects of the Invention] As explained above, according to the present invention, the m percussion liquid pressure forming method brings about the useful effect that a thin tooth crown can be manufactured with high precision.
第１図は、第１発明の、ｍ冠の製造方法の一実施態様を
示す断面図、第２図は、衝撃液圧成形装置を示す断面図
、第３図は、第２発明の、歯冠の製造方法の一実施態様
を示す断面図である。図面において。
１・・・凹型、
３・・・容器、
５・・・弾丸、
２・・・金属板、
４・・・水、
６・・・凸型。
第１ 層
５２図
ロト５
↓FIG. 1 is a cross-sectional view showing an embodiment of the m-crown manufacturing method of the first invention, FIG. 2 is a cross-sectional view showing an impact hydroforming apparatus, and FIG. 3 is a tooth FIG. 3 is a cross-sectional view showing one embodiment of a method for manufacturing a crown. In the drawing. 1... Concave type, 3... Container, 5... Bullet, 2... Metal plate, 4... Water, 6... Convex type. 1st layer 52 drawing lotto 5 ↓
Claims (1)
装入し、そして、衝撃液圧成形法によって、前記金属板
を前記歯冠形状に成形することを特徴とする、歯冠の製
造方法。 ２ 歯冠形状の凸型に、半球状に予成形した金属板を被
せ、そして、衝撃液圧成形法によって、前記金属板を前
記歯冠形状に成形することを特徴とする、歯冠の製造方
法。[Claims] 1. A metal plate preformed into a hemispherical shape is inserted into a concave mold having a crown shape, and the metal plate is formed into the crown shape by an impact hydraulic forming method. Characteristics of the manufacturing method for dental crowns. 2. Manufacture of a dental crown, characterized in that a convex mold shaped like a dental crown is covered with a metal plate preformed into a hemispherical shape, and the metal plate is formed into the crown shape by an impact hydraulic forming method. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1034798A JPH02213334A (en) | 1989-02-14 | 1989-02-14 | Manufacture of tooth crown |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1034798A JPH02213334A (en) | 1989-02-14 | 1989-02-14 | Manufacture of tooth crown |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02213334A true JPH02213334A (en) | 1990-08-24 |
Family
ID=12424266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1034798A Pending JPH02213334A (en) | 1989-02-14 | 1989-02-14 | Manufacture of tooth crown |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02213334A (en) |
-
1989
- 1989-02-14 JP JP1034798A patent/JPH02213334A/en active Pending
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