One-Piece Zirconia Oral Implants for the Support of Three-Unit Fixed Dental Prostheses: Three-Year Results from a Prospective Case Series. - Kohal, Ralf-Joachim; Vach, Kirstin; Butz, Frank; Spies, Benedikt Christopher; Patzelt, Sebastian Berthold Maximilian; Burkhardt, Felix (Journal of Functional Biomaterials, 2023)