Contact fatigue of veneer feldspathic porcelain on dental zirconia
نویسندگان
چکیده
منابع مشابه
Fracture Toughness of Veneering Ceramics for Fused to Metal (PFM) and Zirconia Dental Restorative Materials
Veneering ceramics designed to be used with modern zirconia framework restorations have been reported to fracture occasionally in vivo. The fracture toughness of such veneering ceramics was measured and compared to that of conventional feldspathic porcelain veneering ceramics for metal framework restorations. The fracture toughness of the leucite free veneer was measured to be 0.73 MPa m ± 0.02...
متن کاملEffect of tooth substrate and porcelain thickness on porcelain veneer failure loads in vitro.
STATEMENT OF PROBLEM Bonded porcelain veneers are widely used esthetic restorations. High success and survival rates have been reported, but failures do occur. Fractures are the commonest failure mode. Minimally invasive or thin veneers have gained popularity. Increased enamel and porcelain thickness improve the strength of veneers bonded to enamel, but less is known about dentin or mixed subst...
متن کاملFatigue of zirconia and dental bridge geometry: Design implications.
UNLABELLED Zirconia is currently used as a framework material for posterior all-ceramic bridges. While the majority of research efforts have focused on the microstructure and corresponding mechanical properties of this material, clinical fractures appear to be largely associated with the appliance geometry. OBJECTIVE The objective of this study was to estimate the maximum stress concentration...
متن کاملLong Term Fatigue Behavior of Zirconia Based Dental Ceramics
This study evaluated the influence of cyclic loading on zirconia bar-shaped specimens after being subjected to three different surface treatments: particle abrasion with either 50 μm or 110 μm alumina and grinding with diamond points, while polished specimens served as a control. Statistical analysis revealed significant reduction (38-67%) in flexure strength (P < 0.001) after three million cyc...
متن کاملEffect of porcelain and enamel thickness on porcelain veneer failure loads in vitro.
STATEMENT OF PROBLEM Bonded porcelain veneers are widely used esthetic restorations. Although high success and survival rates have been reported, failures occur. Fracture is the most common failure mode. Fractures range from incomplete cracks to the catastrophic. Minimally invasive or thin partial veneers have gained popularity. PURPOSE The aim of this study was to measure the influences of p...
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ژورنال
عنوان ژورنال: Dental Materials
سال: 2015
ISSN: 0109-5641
DOI: 10.1016/j.dental.2014.12.006