One clinical visit for a multiple implant restoration master cast fabrication.
The making of a one-piece, long-span, implant-supported prosthesis with conventional procedures frequently has difficulties associated with the accuracy of fit. This article presents a clinical and laboratory procedure for making an accurate implant working cast that facilitates fabrication of the casting on the master cast. The procedure demonstrates the process of sectioning and rejoining of the resin between the transfer copings and then pouring the impression by first joining the analogs alone with impression plaster, sectioning it, and rejoining it again to stabilize the analogs, and finally, using dental stone to pour the impression. Clinical, radiographic, and laboratory (optical microscope) measurements for one clinical implant restoration confirm the accuracy of fit of this one prosthesis made with this procedure. Its advantage is that it can allow fabrication of the final casting on the cast, thereby eliminating the clinical time necessary to obtain repetitive solder indexes, and thus minimizing inconvenience to the patient.
Hussaini
S
S
Department of Prosthodontics and Biomaterials, Dental School, University of Medicine and Dentistry of New Jersey, Newark, USA.
Wong
T
T
D002133:Calcium Sulfate; D000044:Dental Abutments; D003735:Dental Casting Technique; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D003760:Dental Impression Materials; D003761:Dental Impression Technique; D003764:Dental Materials; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D012994:Dental Soldering; D006801:Humans; D008334:Mandible / Q000000981:diagnostic imaging / Q000601:surgery; D008853:Microscopy; D003765:Models, Dental; D011859:Radiography; D012117:Resins, Synthetic; D013499:Surface Properties; D013997:Time Factors
D015921:Dental Implants; D003760:Dental Impression Materials; D003764:Dental Materials; D012117:Resins, Synthetic; D002133:Calcium Sulfate