The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 1985
Filed:
Nov. 28, 1983
Scott G McClure, Fallbrook, CA (US);
Other;
Abstract
A process for preparing a cast metal surface such that it is usable for bonding to a tooth structure. A water soluble adhesive medium is placed on a stone cast of a tooth or teeth. A mixture of soluble and non-soluble particles are then placed onto the adhesive. The soluble particles partially dissolve into the adhesive medium while the non-soluble particles adhere to the adhesive. Wax or resin is flowed over the resultant surface to imbed the particles therein. The desired tooth form is then completed after which the adhesive is dissolved away to release the pattern from the cast. The remaining soluble particles are then washed away leaving voids in the surface of the pattern. These voids are then duplicated using standard lost wax casting procedures to reproduce the surface in metal. The surface, which has a multiplicity of voids, roughnesses, and undercuts, is then filled with a bonding medium to attach the rigid cast metal appliance to a tooth surface.