Method of preparation "along the axis" of teeth that serve as a support for extended orthopedic structures

A common mistake of an orthopedic dentist when carrying out odontopreparation of teeth is nonobservance of the parameters of the permissible convergence of the axial walls of the teeth [1]. Analysis of the literature allows us to conclude that with the taper of the tooth walls at 15 degrees, the retention of the crowns is 70 % [2]. The aim of this work was the development of an improved method for coaxial odontopreparation of teeth. This article describes the method of odontopedication of teeth, which are a support for fixed orthopedic structures of an extended nature. The essence of the method is to create a bed on the abutment teeth using a thin fissure bur. The process of coaxial preparation of abutment teeth in the author's technique consists of several stages, which makes it possible to control the preparation accuracy and qualitatively reduce the likelihood of excessive grinding of tooth tissues.