Resin Template for Guiding Preparation in Resin Bonded Fixed Partial Denture

Abstract

Resin Bonded Fixed Partial Denture (RBFPD)  is a popular treatment for tooth preservation. Mechanical retention is crucial for RBFPD, where debonding is the main cause of failure. RBFPD preparation is minimally invasive. It removes undercut and tooth structure that supports retention so that a single insertion guide was achieved. This preparation is achieved by using surveyor on the diagnostic cast, but there is a concern on how to copy the surveyed cast to intraoral. Resin template method as a preparation guide was useful to avoid excessive tooth removal. RBFPD design was marked by using pencil on the diagnostic cast. The cast was surveyed to get the preparation designed and prepared by using milling device surveyor and burs. The template was made on the cast. The separator was applied and the resin template was built along the margin until the occlusal line angle. The abutment teeth were etched and bonded. Bonding procedure was done on the template. The template was placed on the teeth and polymerized. Abutment teeth preparation were done according to the cast with the bur contact simultaneously with the template’s margin and finishing line. Resin templates have advantages compared to silicone and vacuum form template. Silicone template is thicker and harder to detect the preparation margin. Vacuum form template was less adaptive because of space and step. Resin template has better accuration and adaptation, easier made and efficient also prevent excessive tooth removal and control the preparation, mechanical retention can be achieved for RBFPD restoration longevity. Resin template is useful because preparation can be transferred from diagnostic cast to intraoral accurately.