An association between the kind of complications and different types of restorations could not be established .
Nevertheless , a relatively high failure rate due to caries and ceramic fractures was noted
OBJECTIVE The aim of this study was to identify if different types of indirect restorations used for single teeth had different biological and technical complications , as well as survival rates .
Fracture Rates and Lifetime Estimations of CAD/CAM All-ceramic Restorations
The gathering of clinical data on fractures of dental restorations through prospect i ve clinical trials is a labor- and time-consuming enterprise . Here , we propose an unconventional approach for collecting large data sets , from which clinical information on indirect restorations can be retrospectively analyzed . The authors accessed the data base of an industry-scale machining center in Germany and obtained information on 34,911 computer-aided design (CAD)/computer-aided manufacturing ( CAM ) all-ceramic posterior restorations . The fractures of bridges , crowns , onlays , and inlays fabricated from different all-ceramic systems over a period of 3.5 y were reported by dentists and entered in the data base . Survival analyses and estimations of future life revealed differences in performance among  ZrO2-based restorations  and lithium disilicate and leucite-reinforced glass-ceramics
An association between the kind of complications and different types of restorations could not be established .
Nevertheless , a relatively high failure rate due to caries and ceramic fractures was noted
OBJECTIVE The aim of this study was to identify if different types of indirect restorations used for single teeth had different biological and technical complications , as well as survival rates .