PMID: 8957788Dec 1, 1996Paper

Mechanical properties of a new mica-based machinable glass ceramic for CAD/CAM restorations

The Journal of Prosthetic Dentistry
J Y ThompsonH O Heymann

Abstract

Machinable ceramics (Vita Mark II and Dicor MGC) exhibit good short-term clinical performance, but long-term in vivo fracture resistance is still being monitored. The relatively low fracture toughness of currently available machinable ceramics restricts their use to conservative inlays and onlays. A new machinable glass ceramic (MGC-F) has been developed (Corning Inc.) with enhanced fluorescence and machinability. The purpose of this study was to characterize and compare key mechanical properties of MGC-F to Dicor MGC-Light, Dicor MGC-Dark, and Vita Mark II glass ceramics. The mean fracture toughness and indented biaxial flexure strength of MGC-F were each significantly greater (p < or = 0.01) than that of Dicor MGC-Light, Dicor MGC-Dark, and Vita Mark II ceramic materials. The results of this study indicate the potential for better in vivo fracture resistance of MGC-F compared with existing machinable ceramic materials for CAD/CAM restorations.

Citations

May 21, 2011·Dental Materials Journal·Duangrudee ChaysuwanKimihiro Yamashita
Oct 16, 2015·Dental Materials : Official Publication of the Academy of Dental Materials·Nadja RohrJens Fischer
Apr 17, 2009·Journal of Esthetic and Restorative Dentistry : Official Publication of the American Academy of Esthetic Dentistry ... [et Al.]·Lee W Boushell, André V Ritter
Jan 6, 2007·Dental Materials : Official Publication of the Academy of Dental Materials·Sufyan GaroushiLippo V J Lassila
Jun 20, 2003·The Journal of Prosthetic Dentistry·Annie J St-GeorgesJeffrey Y Thompson
Apr 11, 2007·Acta Biomaterialia·Sufyan GaroushiLippo V J Lassila
Aug 2, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·A A ZandinejadA Pahlevan
Mar 22, 2008·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Mohammed ZahranYoav Finer
Apr 5, 2002·British Dental Journal·R W WassellJ G Steele
Oct 30, 2013·The Open Dentistry Journal·Christine DirxenSaskia Preissner
Dec 11, 1999·Australian Dental Journal·M A Bergman
Aug 29, 2000·Journal of Dentistry·J TinschertK J Anusavice

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