Wear of metal-free resin composite crowns after three years in service

• Verfasst von: Zenthöfer, Andreas [VerfasserIn]
• Verfasst von: Rammelsberg, Peter [VerfasserIn]
• Verfasst von: Ohlmann, Brigitte [VerfasserIn]
• Titel: Wear of metal-free resin composite crowns after three years in service
• Verf.angabe: Andreas Zenthöfer, Peter Rammelsberg, Clemens Schmitt and Brigitte Ohlmann
• Jahr: 2013
• Umfang: 6 S.
• Fussnoten: Gesehen am 27.07.2021
• Titel Quelle: Enthalten in: Dental materials journal
• Ort Quelle: Tōkyō : Soc., 1982
• Jahr Quelle: 2013
• Band/Heft Quelle: 32(2013), 5, Seite 787-792
• ISSN Quelle: 1881-1361
• DOI: doi:10.4012/dmj.2013-077
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Clinical trial
• Sach-SW: Composite crowns
• Sach-SW: Posterior crowns
• Sach-SW: Wear
• K10plus-PPN: 1764624823

Abstract

To compare differences between the wear behavior of two types of metal-free resin composite crown with a control after three years in clinical service. Sixty-six participants needing one to three posterior single crowns were fitted with 120 crowns. Abutment teeth were randomly assigned to three groups: 40 resin composite crowns with fiber-reinforced framework, 40 resin composite crowns without fiber-reinforced framework, and 40 metal-ceramic crowns. To assess wear, gypsum replicas of the crowns were fabricated and scanned with a 3D laser scanner at baseline and after three years. Differences between the groups were analyzed by use of mixedeffects regression models. Wear of resin composite crowns with fiber-reinforced framework (p=0.0043) and resin composite crowns without framework (p=0.0246) was significantly greater than in the metal-ceramic group. Wear of metal-free resin composite crowns after three years was significantly greater than that of metal-ceramic crowns, but the wear was still clinically acceptable.