Invention Application
- Patent Title: INDIRECT RESTORATION TECHNOLOGY
- Patent Title (中): 间接恢复技术
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Application No.: PCT/US2011/001979Application Date: 2011-12-13
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Publication No.: WO2012082156A1Publication Date: 2012-06-21
- Inventor: CASTILLO, Rodolfo , CARDEN, Robin, A. , FRIEBAUER, Wolfgang
- Applicant: JAMES R. GLIDEWELL DENTAL CERAMICS, INC. , CASTILLO, Rodolfo , CARDEN, Robin, A. , FRIEBAUER, Wolfgang
- Applicant Address: 4141 Macarthur Boulevard Newport Beach, CA 92660 US
- Assignee: JAMES R. GLIDEWELL DENTAL CERAMICS, INC.,CASTILLO, Rodolfo,CARDEN, Robin, A.,FRIEBAUER, Wolfgang
- Current Assignee: JAMES R. GLIDEWELL DENTAL CERAMICS, INC.,CASTILLO, Rodolfo,CARDEN, Robin, A.,FRIEBAUER, Wolfgang
- Current Assignee Address: 4141 Macarthur Boulevard Newport Beach, CA 92660 US
- Agency: TACHNER, Leonard
- Priority: US13/374,041 20111208; US61/459,506 20101214
- Main IPC: C09K3/00
- IPC: C09K3/00 ; A61C5/10
Abstract:
Dental restorations such as crowns, are made from lithium silicate glass ceramic that is heated and pressed onto a metal substrate, the latter being shaped to an impression or scan of the area of the mouth to receive the restoration. The metal substrate is made from an alloy selected to exhibit a coefficient of thermal expansion which is slightly greater than the CTE of the lithium silicate. In a preferred embodiment, the CTE of the lithium silicate glass ceramic is in the range of 11.5 to 12.5 and the alloy is selected to have a CTE of 12 to 13.5. A palladium tin alloy provides that CTE in the preferred embodiment.
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