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Comparative Study
. 2017 Sep/Oct;37(5):657-665.
doi: 10.11607/prd.3184.

Interproximal Papilla Stability Around CAD/CAM and Stock Abutments in Anterior Regions: A 2-Year Prospective Multicenter Cohort Study

Diego Lops, Andrea Parpaiola, Gianluca Paniz, Luca Sbricoli, Vanessa Ruiz Magaz, Alvise Cenzi Venezze, Eriberto Bressan, Edoardo Stellini
Comparative Study

Interproximal Papilla Stability Around CAD/CAM and Stock Abutments in Anterior Regions: A 2-Year Prospective Multicenter Cohort Study

Diego Lops et al. Int J Periodontics Restorative Dent. 2017 Sep/Oct.

Abstract

The 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.

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