Removable partial dentures always remain a primary method to restore missing teeth. The need for detailed and accurate impression in removable partial denture prosthodontics is very important to dentists. The partial denture impression must accurately register the oral mucosa at the same time that it records the remaining teeth. Due to changes in the compressibility of both anatomic structures different techniques have evolved over the years. This book is a comprehensive overview of different materials and techniques applied to obtain more accurate impressions for precision fitting of removable partial dentures.