Three-year performance of inlay-retained or wing-retained zirconia resin-bonded fixed partial dentures - results from a randomized clinical pilot study

No short-term difference was found in the survival and success rates of monolithic zirconia RBFPDs for minimally invasive restoration of missing posterior teeth, whether retained by inlays or wings. (clinicaltrials.gov registration no.: NCT01997710) CLINICAL SIGNIFICANCE: Monolithic zirconia RBFPDs retained by either inlays or wings appear to be a viable option for the esthetic and functional, albeit minimally invasive, restoration of missing posterior teeth in patients with abutment teeth are largely defect-free, with the wing retainer being preferred over the inlay retainer in intact teeth because it is less invasive.