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:
Sep. 18, 1990
Filed:
Feb. 16, 1989
Kaizo Shimura, Yokosuka, JP;
Hiroyasu Takeuchi, Tokorozawa, JP;
Masahiro Hirano, Yokozemachi, JP;
Yohji Imai, Chiba, JP;
Mitsubishi Mining & Cement Co., Ltd., Tokyo, JP;
Abstract
An artifical tooth comprises a contacting member formed of a composite material having compatibility with living tissues and diaposed at an outer portion of the artificial tooth to be contacted with alveolar bone, a metal base member having an opening therein and disposed inside of and attached to the contacting member, a metal post inserted into the opening of the metal base member and at least two elastic buffer members disposed in a space between the metal base member and the metal post. The composite material having compatibility with living tissues contains 40 to 95% by weight of a calcium phosphate compound and 60 to 5% by weight of an organic polymer. Each of the elastic buffer members is spaced apart for movably receiving the metal post by which pressure imposed upon the artificial tooth is transmitted.