Muhammad Raza, Fahim Ullah, Mohanmmad Fayyaz, Sadia Akram.
Complications and their severity in patients of conventional metal ceramic fixed dental prosthesis: a clinical study.
Pak Oral Dental J Jan ;35(1):155-8.

The aim of this study was to present the frequency of biological and technical complications and its severity related with metal ceramic fixed partial dentures (FPDs). Total 245 abutments of 140 patients presented with complications in their FPDs were examined. The mean age of the patients was 42 years (range 23-83). 66.1% and 33.8 %complication were found in the FPDs provided by qualified and unqualified persons respectively with an average 5.4 years length of services. Among the biological complications caries were present in 21.2% (52) of the abutment teeth; 13.06% (32) had periapical problems, 12.65% (31) periodontal problems and 2.85% (7) had abutment fracture. Sixty eight out of 245 abutments with a decementation problem indicated a the major technical complication, whereas 25 with esthetic problem, 15 had occlusal problems. The primary technical complication decementation was associated with wrong preparation. Varying severity grades of complications, grade I 27.3%, grade II 35.1 % and grade III 37.5% were observed. In conclusion majority of the FPDs having complications were provided by unqualified and were of grade II and III. The common complications were de-cementation, dental caries, periodontal disease and periapical problems.

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