[ SEM evaluation of wax pattern marginal fitness using different time intervals and temperatures]

ABSTRACT

Introduction and objective: one of the most important laboratory procedures in crown and bridge construction is preparing the wax pattern. A restoration is predictable when its marginal gap is minimum, which depends on the marginal fitness of wax pattern. Since a lot of studies related to marginal distortion of the wax pattern have been done after removing it from the working model [die], this study was designed to evaluate marina1 fitness using different time intervals and temperatures while the wax pattern remains on the die. The purpose of this study was to assess the marginal wax pattern fitness on the working model in different temperatures and time intervals with two types of hard and soft waxes