DOI: 10.11607/prd.3184, PubMed ID (PMID): 28817129Pages 656-665, Language: EnglishLops, Diego / Parpaiola, Andrea / Paniz, Gianluca / Sbricoli, Luca / Magaz, Vanessa Ruiz / Venezze, Alvise Cenzi / Bressan, Eriberto / Stellini, EdoardoThe aim of this study was to compare the interproximal papilla stability of restorations supported by computer-aided design/computer-assisted manufacture (CAD/CAM) abutments to those supported by prefabricated stock abutments in anterior areas over a 2-year follow-up. Abutments were selected depending on implant inclination and thickness of buccal peri-implant soft tissues from the following: zirconia stock, titanium stock, zirconia CAD/CAM and titanium CAD/ CAM. Differences between the height of the papilla tip were measured (REC). Results: REC values of titanium and zirconia CAD/CAM abutments were significantly lower than those of titanium and zirconia stock. The use of titanium and zirconia CAD/CAM abutments is related to better interproximal papillae stability.
