Zirconia All-ceramic Fixed Partial Dentures
All-ceramic fixed partial dentures have been increasing interest due to demand for esthetic and metal-free restorations of the patients. Yttrium tetragonal zirconia polycrystals has the highest mechanical properties, and promising long term clinical performance. Marginal fit of zirconia fixed partial dentures machined by CAD/CAM systems are lower than metalceramic fixed partial dentures but within the range of clinical acceptability. The 1-5 year success rates of frameworks in most studies were 100% and survival rates were 73.9-100%. The most common complications of zirconia fixed partial dentures were chipping of porcelain veneer. Recent studies indicate that with proper patient selection, 3-4 unit zirconia fixed partial dentures are suitable for replacement of anterior and posterior teeth.
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