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:
Mar. 28, 2000
Filed:
Jan. 28, 1998
Francesco Riitano, Soverato, IT;
Ultradent Products, Inc., South Jordan, UT (US);
Abstract
A root canal is sequentially cleaned in sections from the crown to the apex. An opening is first formed into the tooth to provide access into the root canal. The opening is preferably rectified to remove obstructions from fully accessing the anatomical root canal. The pulp material is then sequentially removed from the portion of the root canal above the apical portion of the root canal with a first set of instruments and then from the apical portion with a second set of instruments. Cleaning of the pulp material from the root canal also shapes the root canal to ease filling of the root canal with a filling material. Each instrument comprises a handle connected to a file. Each file has an abrading portion and terminates at a tip. The files used to clean the portion of the root canal above the apical portion have properties which enable the abrading portion of the file to conform to the configuration of the root canal while simultaneously moving the file in a cleaning motion.