JPS6446451A - Orthodontic bracket - Google Patents
Orthodontic bracketInfo
- Publication number
- JPS6446451A JPS6446451A JP20350287A JP20350287A JPS6446451A JP S6446451 A JPS6446451 A JP S6446451A JP 20350287 A JP20350287 A JP 20350287A JP 20350287 A JP20350287 A JP 20350287A JP S6446451 A JPS6446451 A JP S6446451A
- Authority
- JP
- Japan
- Prior art keywords
- single crystal
- 5mol
- content
- zirconia
- orthodontic bracket
- 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
Abstract
PURPOSE:To enhance strength and beauty and to improve the sliding with a metal wire, by using a transparent zirconia single crystal containing yttria as a material for an orthodontic bracket. CONSTITUTION:This bracket is formed from monocrystalline zirconia containing yttria. This zirconia (ZrO2) single crystal containing yttria (Y2O3) is usually prepared by a skull melt method. Transparency is different by the content of yttria (Y2O3) and said monocrystal becomes translucent in the content of 3-5mol.% and becomes sufficiently transparent in the content of 6-12mol.%. The strength of the monocrystal is excellent within a range of 3-5mol.% and becomes 100kgf/mm<2> at 3mol.%, 50kgf/mm<2> at 5mol.% and 30kgf/mm<2> at 12mol.%. This single crystal is processed and ground into the shape of an orthodontic bracket. Further, when the single crystal is prepared, a favorite color can be developed by a small amount of an additive.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20350287A JP2551018B2 (en) | 1987-08-18 | 1987-08-18 | Orthodontic bracket |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20350287A JP2551018B2 (en) | 1987-08-18 | 1987-08-18 | Orthodontic bracket |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6446451A true JPS6446451A (en) | 1989-02-20 |
JP2551018B2 JP2551018B2 (en) | 1996-11-06 |
Family
ID=16475218
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20350287A Expired - Lifetime JP2551018B2 (en) | 1987-08-18 | 1987-08-18 | Orthodontic bracket |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2551018B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0564644A (en) * | 1990-02-07 | 1993-03-19 | Ormco Corp | Orthonic bracket, production thereof, and adhesive used therefor |
US5219805A (en) * | 1991-03-06 | 1993-06-15 | Hoya Corporation | Ivory-colored zirconia sintered body, process for its production and its use |
CN102727316A (en) * | 2012-07-02 | 2012-10-17 | 首都医科大学附属北京口腔医院 | Double-wire straight wire arch correction device and tooth correcting method |
-
1987
- 1987-08-18 JP JP20350287A patent/JP2551018B2/en not_active Expired - Lifetime
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0564644A (en) * | 1990-02-07 | 1993-03-19 | Ormco Corp | Orthonic bracket, production thereof, and adhesive used therefor |
US5219805A (en) * | 1991-03-06 | 1993-06-15 | Hoya Corporation | Ivory-colored zirconia sintered body, process for its production and its use |
CN102727316A (en) * | 2012-07-02 | 2012-10-17 | 首都医科大学附属北京口腔医院 | Double-wire straight wire arch correction device and tooth correcting method |
CN102727316B (en) * | 2012-07-02 | 2015-09-09 | 首都医科大学附属北京口腔医院 | Double-wire straight wire arch correction device and orthodontic method |
Also Published As
Publication number | Publication date |
---|---|
JP2551018B2 (en) | 1996-11-06 |
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