AN ACCESS BUR AND A SET OF ACCESS BURS FOR PREPARING A ROOT CANAL

摘要

: A series of multi-tapered parabolic implements (18) is disclosed for endodontic use. The implements comprise different sections: a pilot tip (20), a first portion (a) adjacent the pilot tip and a second portion (ß) adjacent the shank. The two portions have different tapers. The tapers of the two different portions blend into each other along a parabola-shaped surface.