Agustin-Panadero R, et al. - Herein, researchers assessed the clinical behavior of one-piece complete-coverage crowns and fixed partial dentures (FPDs) on teeth with vertical preparation without finish line biologically oriented preparation technique (BOPT). Gingival thickening, margin stability, and optimal esthetics were produced by the vertical preparation without finish line, 2 years after treatment. No mechanical complications were presented with neither crowns nor FPDs.