%0 Journal Article
%A Suarez, María J.
%A Pérez, Cristina
%A Peláez Rico, Jesús
%A López Suárez, Carlos
%A Gonzalo Íñigo, Esther
%T A randomized clinical trial comparing zirconia and metal‐ceramic three‐unit posterior fixed partial dentures: a 5‐year follow‐up
%D 2018
%@ 1059-941X
%U https://hdl.handle.net/20.500.14352/97374
%X Purpose: To compare the survival, success rates, and biological/technical complications of posterior metal-ceramic (MC) and zirconia fixed partial dentures (FPDs).Materials and Methods: A total of 40 patients requiring 40 posterior FPDs were randomly assigned to receive 20 zirconia and 20 MC restorations. The restorationswere examined 1 week (baseline) and 1, 3, and 5 years after the end of treatment. Technical and biological outcomes were compared. Data were statistically analyzed using the Wilcoxon signed-rank and Mann-Whitney U tests.Results:The survival rates of both groups were 100%, and the success rates were80% (zirconia) and 100% (MC). No biological complications were observed. Minorchipping was found in 20% of the zirconia restorations. No differences in periodontal parameters were observed between groups.Conclusions: Zirconia FPDs exhibited the same survival rate (100%) as MC FPDs after 5 years; however, the success rate was 80%, because an increased rate of chippingwas observed in zirconia restorations.
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