Skip to main content
ICP TPID JOINT MEETING

Papers Proceedings »

Prosthetic rehabilitation of edentulous patients by using the “Toronto hybrid prosthesis”: 3 case reports

Objective: We describe the treatment of completely edentulous patients with severe resorbed upper and lower jaws using by cemented crowns on screw-retained Toronto hybrid prostheses. Conventional screw-retained hybrid prostheses on implants restore moderately to severely resorbed alveolar crests. However, disadvantages such as deterioration of passive seating as a result of distortions in the metal infrastructure after firing the porcelain, and porcelain fractures as the cooling rate will vary in different thicknesses of the framework. In addition, non-arch positioning of implants due to severe crest resorption may cause screw holes to emerge from the labial or buccal surface, which adversely affects aesthetics. The Toronto hybrid approach eliminates all these disadvantages. Materials-methods: Three case reports are reported of implant-supported Toronto prosthesis restored after surgical placement of implants with undesirable placements and angles due to insufficient bone. Case-1: Sinus plasty and autogenous iliac graft were applied to both quadrants of the extremely resorbed maxilla of a 67-year-old male patient. One year after the surgical operation, 4 implants were placed in the lower jaw and 6 implants in the upper jaw. 4 months later, the lower-upper Toronto hybrid prosthesis was completed in class 1 relationship. Case -2: All teeth and old implants with periodontal problems in the mouth of a 57-year-old male patient were removed and 6 implants were placed for each jaw. After 5 months, the treatment with the Toronto hybrid prosthesis was completed. Case-3: 8 months after the application of an iliac graft to the severely resorbed maxilla of a 40-year-old female patient, 4 implants were placed in the lower jaw and 6 implants were placed in the upper jaw. 4 months later the treatment was completed with the Toronto hybrid prosthesis. Result: The technique used in the production of prostheses in these patients has largely overcome the problems encountered due to the placement angles of the implants. Conclusion: The use of cemented crowns on the screw-retained framework eliminated the step of re-entering the framework into the furnace and eliminated the complications that may occur due to this. Moreover, the other advantage of the system is that occurred any complication such as porcelain fracture, cemented crowns can be easily removed partially when repair is required.

Kıymet Çalık
Bezmialem Vakıf Üniversitesi
Turkey

Doğan Dolanmaz
Bezmialem Vakıf Üniversitesi
Turkey

Özgün Yusuf Özyılmaz
Bezmialem Vakıf Üniverstesi
Turkey

 


Powered by OpenConf®
Copyright ©2002-2021 Zakon Group LLC