Laboratory fabrication of gold occlusal surfaces for removable and implant-supported prostheses.
This article describes a technique for fabricating prosthetic teeth with gold occlusal surfaces for removable or implant-supported prostheses. Following a successful wax try-in appointment, the denture teeth used in the prosthesis are invested in a denture flask. After deflasking, the gingival 2/3 of the denture teeth are trimmed away. The remaining occlusal portions of the teeth are invested in a gypsum-bonded investment and cast in a type III gold alloy. After polishing, the castings are repositioned back into their respective sites in the flask. An acrylic resin of an appropriate shade is mixed and packed in the flask. Once the acrylic resin is processed to the metal occlusal surfaces, the individual teeth are removed from the flask and polished. Then the finished teeth are reinserted in the wax trial denture, the occlusion is refined, the final wax-up is completed, and the prosthesis is processed.
Lloyd
Patrick M
PM
Department of Family Dentistry, The University of Iowa College of Dentistry, Iowa City 52242, USA.
D000180:Acrylic Resins / Q000737:chemistry; D003734:Dental Casting Investment / Q000737:chemistry; D003735:Dental Casting Technique / Q000295:instrumentation; D003775:Dental Polishing; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D003779:Denture Design; D003824:Denture, Complete; D006047:Gold Alloys / Q000737:chemistry; D006801:Humans; D007754:Laboratories, Dental; D013499:Surface Properties; D014093:Tooth, Artificial
D000180:Acrylic Resins; D003734:Dental Casting Investment; D006047:Gold Alloys