JP6167223B2 - 歯科補綴物の製造方法 - Google Patents
歯科補綴物の製造方法 Download PDFInfo
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- JP6167223B2 JP6167223B2 JP2016504123A JP2016504123A JP6167223B2 JP 6167223 B2 JP6167223 B2 JP 6167223B2 JP 2016504123 A JP2016504123 A JP 2016504123A JP 2016504123 A JP2016504123 A JP 2016504123A JP 6167223 B2 JP6167223 B2 JP 6167223B2
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- Prior art keywords
- dental prosthesis
- mold
- inner layer
- layer
- outer layer
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- 238000004519 manufacturing process Methods 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 12
- 239000000463 material Substances 0.000 claims description 84
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 238000010030 laminating Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 67
- 238000003825 pressing Methods 0.000 description 8
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 239000000919 ceramic Substances 0.000 description 5
- 239000002241 glass-ceramic Substances 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 229920005992 thermoplastic resin Polymers 0.000 description 3
- 238000000465 moulding Methods 0.000 description 2
- 210000000214 mouth Anatomy 0.000 description 2
- 230000001055 chewing effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 210000003298 dental enamel Anatomy 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
Images
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/081—Making teeth by casting or moulding
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/09—Composite teeth, e.g. front and back section; Multilayer teeth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/20—Methods or devices for soldering, casting, moulding or melting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/22—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2101/00—Use of unspecified macromolecular compounds as moulding material
- B29K2101/12—Thermoplastic materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/753—Medical equipment; Accessories therefor
Landscapes
- Health & Medical Sciences (AREA)
- Epidemiology (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Dental Prosthetics (AREA)
- Dental Preparations (AREA)
Description
このような観点から内層11は天然歯に近い色であるとともに、透明度が低く抑えられた材料により構成されている。かかる観点から内層11に用いられる材料としては例えば熱可塑性樹脂、セラミックス、ガラスセラミックスを挙げることができる。その中でも歯科用補綴物の強度や審美生の観点からセラミックスやガラスセラミックスが好ましい。
かかる観点から外層12に用いられる材料としては例えば熱可塑性樹脂、セラミックス、ガラスセラミックスを挙げることができる。
その中でも歯科用補綴物の強度や審美生の観点からセラミックスやガラスセラミックスが好ましい。
次にワックスパターン20を歯科用埋没材に埋没させ、歯科用埋没材を硬化させた後にワックスパターン20を溶出、燃焼させて除去する。これにより図4に示した型21が作製される。従って型21には、歯科補綴物10の形状を有する空洞21a、材料が押込まれる材料押込み口21b、及び材料押込み口21bと空洞21aとを連結する通路である道21cが形成されている。
充填装置22への型21の装着は図4に表れているように、充填装置22の材料充填口22cと型21の材料押込み口21bとが連通するように配置される。
このとき、図7に表れているように粘度が下げられている材料積層体23は、型21から遠い側の内層用材料23aが、型21に近い側の外層用材料23bの内側を進み、空洞21aの内周面を外層用材料23bが覆い、その内側を内層用材料23aが進むようにして空洞21aが充填される。これにより、図8に示したように充填(プレス)が完了した際には、得るべき歯科補綴物10の形状及び層構成が同時に形成されている。
このとき、型21の回転数は1rpm以上100rpm以下が好ましく、より好ましくは10rpm以上70rpm以下である。1rpmより小さいと製造効率が悪く、100rpmより大きいと上記の効果が低下する虞がある。
11 内層
12 外層
20 ワックスパターン
21 型
21a 空洞
21b 材料押込み口
21c 道
22 充填装置
22a 材料挿入部
22b 縮径部
22c 材料充填口
22d シャッター
23 材料積層体
23a 内層用材料
23b 外層用材料
Claims (2)
- 複数の層を有する歯科補綴物を製造する方法であって、
前記複数の層に対応した材料が積層されて成る材料積層体を溶融温度より低い所定の温度にまで加熱して材料押込み口から押圧して入れ、型に形成された前記歯科補綴物の形状を有する空洞内に得るべき歯科補綴物の層構成となるように材料を充填する工程と、
前記充填する工程の後に、前記材料積層体を前記型に充填するために押圧する方向に平行な方向の軸を中心に前記型を回転させ、前記型の前記材料押込み口で前記材料を切断する工程と、を備える、歯科補綴物の製造方法。 - 前記歯科補綴物の外周の全部が1種類の層により覆われた層構成となる、請求項1に記載の歯科補綴物の製造方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2014031851 | 2014-02-21 | ||
JP2014031851 | 2014-02-21 | ||
PCT/JP2015/054385 WO2015125807A1 (ja) | 2014-02-21 | 2015-02-18 | 歯科補綴物の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPWO2015125807A1 JPWO2015125807A1 (ja) | 2017-03-30 |
JP6167223B2 true JP6167223B2 (ja) | 2017-07-19 |
Family
ID=53878307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2016504123A Active JP6167223B2 (ja) | 2014-02-21 | 2015-02-18 | 歯科補綴物の製造方法 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10182894B2 (ja) |
EP (1) | EP3108847A1 (ja) |
JP (1) | JP6167223B2 (ja) |
CN (1) | CN105960216B (ja) |
WO (1) | WO2015125807A1 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU2017396539A1 (en) | 2017-06-29 | 2019-01-17 | Gc Corporation | Scale |
CN109820611A (zh) * | 2019-02-12 | 2019-05-31 | 郝晋玲 | 一种浇筑生产牙冠的方法 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1511458A (en) * | 1922-05-03 | 1924-10-14 | Dentists Supply Co | Method for forming molded objects |
JPS5734844A (en) * | 1980-08-08 | 1982-02-25 | Kuraray Co | Manufacture of complex shape |
JPH06269466A (ja) * | 1993-03-22 | 1994-09-27 | Olympus Optical Co Ltd | 歯科補綴物 |
JP2001061864A (ja) * | 1999-08-27 | 2001-03-13 | Dental Supply:Kk | 金属歯冠の製造法と該製造に用いる歯冠咬合部成形用型材 |
FR2868727B1 (fr) * | 2004-04-08 | 2007-10-05 | Inergy Automotive Systems Res | Procede et dispositif d'extrusion-moulage de corps creux en matiere thermoplastique |
JP4692731B2 (ja) * | 2005-04-28 | 2011-06-01 | 株式会社吉野工業所 | グラデーション模様付きボトルと、ボトル成形用のプリフォーム |
EP2077795A1 (en) * | 2006-09-13 | 2009-07-15 | 3M Innovative Properties Company | Preformed malleable multilayer dental articles |
DE502007003480D1 (de) * | 2007-11-28 | 2010-05-27 | Ivoclar Vivadent Ag | Verfahren und System zur Herstellung von dentalen Restaurationen aus Keramik |
UA99992C2 (ru) * | 2011-11-03 | 2012-10-25 | Владимир Сантьягович Васкес | Устройство для изготовления зубопротезных изделий из суперконструкционного термопласта методом литья под давлением |
-
2015
- 2015-02-18 CN CN201580006513.6A patent/CN105960216B/zh active Active
- 2015-02-18 JP JP2016504123A patent/JP6167223B2/ja active Active
- 2015-02-18 US US15/119,552 patent/US10182894B2/en active Active
- 2015-02-18 EP EP15751918.2A patent/EP3108847A1/en not_active Withdrawn
- 2015-02-18 WO PCT/JP2015/054385 patent/WO2015125807A1/ja active Application Filing
Also Published As
Publication number | Publication date |
---|---|
JPWO2015125807A1 (ja) | 2017-03-30 |
US10182894B2 (en) | 2019-01-22 |
EP3108847A1 (en) | 2016-12-28 |
CN105960216B (zh) | 2020-06-19 |
CN105960216A (zh) | 2016-09-21 |
WO2015125807A1 (ja) | 2015-08-27 |
US20170056139A1 (en) | 2017-03-02 |
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