Marginal Adaptation of Metal Ceramic Crowns Cast from Four Different Base Metal Alloys before and after Porcelain Application

Introduction: Marginal adaptation of a crown is an important factor affecting its clinical acceptability and durability; also, poorly fitting cast restoration enables bacterial plaque accumulation and leads to teeth caries and periodontal deterioration. Purpose: The purpose of this study was to evaluate marginal adaptation of 4all, Verabband2, T3 and Supremcast V base metal alloys before and after porcelain firing