Failure load of teeth restored by use of alumina copings

• Verfasst von: Schmitter, Marc [VerfasserIn]
• Verfasst von: Posavec, Tomislav [VerfasserIn]
• Verfasst von: Müller, Denise [VerfasserIn]
• Verfasst von: Mußotter, Katrin [VerfasserIn]
• Verfasst von: Rammelsberg, Peter [VerfasserIn]
• Verfasst von: Rues, Stefan [VerfasserIn]
• Titel: Failure load of teeth restored by use of alumina copings
• Titelzusatz: influence of residual tooth structure and cementation
• Verf.angabe: Marc Schmitter, Tomislav Posavec, Denise Mueller, Katrin Mussotter, Peter Rammelsberg and Stefan Rues
• E-Jahr: 2013
• Jahr: July 30, 2013
• Umfang: 7 S.
• Teil: volume:32
• Teil: year:2013
• Teil: number:4
• Teil: pages:537-543
• Teil: extent:7
• Fussnoten: Gesehen am 12.07.2021
• Titel Quelle: Enthalten in: Dental materials journal
• Ort Quelle: Tōkyō : Soc., 1982
• Jahr Quelle: 2013
• Band/Heft Quelle: 32(2013), 4, Seite 537-543
• ISSN Quelle: 1881-1361
• DOI: doi:10.4012/dmj.2013-016
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Alumina
• Sach-SW: CAD/CAM
• Sach-SW: Cementation
• K10plus-PPN: 176266576X

Abstract

To evaluate failure loads of teeth restored by use of alumina-coping, and to assess the effects of different amounts of residual tooth structure and different cements, standardized artificial alumina copings were fabricated on seventy-two molars. 24 of the copings were cemented by use of an adhesive resin cement (P-group), n=24 by use of glass-ionomer cement (K-group), and n=24 by use of a self-adhesive modified composite resin-cement (R-group). After artificial ageing (10,000 thermal-cycles between 6.5 and 60°C; 1,200,000 chewing cycles with Fmax=64 N), the specimens were loaded until failure (cross-head-speed: 0.5 mm/min). In the K-group 83% of the specimens failed during chewing simulation. Statistical analysis included chi-squared-test, unpaired-to-sample-t-test, and ANOVA. For severely damaged teeth, loads to failure in the P-group (384 N) were significantly (p=0.03) higher than in the R-group (295 N). For severely damaged teeth, use of composite resin cement resulted in higher loads to failure than use of other cements.