Tooth Preparation Theory
Application to Custom Abutment Design
GUIDING PRINCIPLES TO SUCCESS
BY: Geoffrey W. Sheen, CDT, DDS, MS
The concepts of tooth preparation have been developed and modified over the past century as changes in instrumentation and materials have dictated. The principles of retention, resistance form, taper and surface roughness have been studied thoroughly and a set of guiding principles have been developed.
In this article Dr. Sheen discusses these principles, as they are applied to the design of custom implant abutments.