Abutment tooth modification for removable partial denture therapy

The primary purpose of removable partial denture (RPD) therapy is to preserve existing oral structures. To accomplish this goal, natural teeth are selected to provide the necessary support, bracing, and retention for the removable prosthesis. Unfortunately, the chosen abutment teeth rarely are able to perform their task without some modification, which usually involves altering the tooth's enamel surface or fabricating and placing a crown. This article discusses the criteria and technique used for these modification procedures.