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:
Feb. 08, 1994
Filed:
Aug. 28, 1992
Applicant:
Inventor:
Eberhard Weil, Bad Nauheim, DE;
Assignee:
Coltene/Whaledent, Inc., Mahwah, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C / ;
U.S. Cl.
CPC ...
433224 ; 433221 ;
Abstract
A canal in a tooth is reinforced by forming a lining within the canal. The canal is reamed to a desired size and depth. A light transmitting mandrel is next inserted into the canal and seated in the reamed-out area. A light curable composite is placed around the mandrel. Alternatively, the mandrel is withdrawn, the canal is filled with a light curable composite, and the mandrel is reinserted through the composite into the canal. Thereafter, light is shined on the mandrel to cure the composite. When cured, the mandrel is withdrawn to expose a precise canal in the composite lining.