All on 4 While a Prosthodontist is a dentist, not all dentists are Prosthodontists. A Prosthodontist specialises in the design, fabrication, and placement of restorations to repair or replace missing or damaged teeth. A dentist must complete a minimum of three additional years of advanced dental science training after dental school to become a Prosthodontist in Perth WA. Training consists of thorough clinical and lecture-based preparation in a number of sciences and surgical techniques. This allows Prosthodontists to treat complex clinical dentistry, perform full-mouth reconstructions, correct TMJ disorders, remedy congenital disorders such as cleft palate, and provide relief from sleep apnea.