Inlay-retained fixed dental prosthesis have acceptable 3-yr survival rate suggests review

Missing premolar

This review of inlay-retained fixed dental prosthesis included 11 small mainly observational studies. The studies suggest a 3-yr survival rate of 92.6% (95% CI: 85.8-97.6%) and 5-yr survival rate of 87.9% (95% CI: 77.4-96.1%). However because of the low quality of the available studies and the wide range of inlay designs, framework materials, surface treatments and cement systems used means that the results should be interpreted cautiously.

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Ceramic crowns: effect of endodontic access on fracture resistance

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This review of the effect of endodontic access on fracture resistance of all-ceramic crowns included 8 in-vitro studies providing some indication of potential factors that may impact on fracture resistance.

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All-ceramic crowns: failure rates higher in posterior teeth

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This review of the failure rates of all-ceramic crowns included 14 (9 prospective, 5 retrospective) studies. Using a broad definition of failure there was little difference between rates in anterior and posterior crowns.

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Laminate veneers: incisal coverage or not?

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This review of difference designs of laminate veneers included 8 studies demonstrating no difference between those with incisal coverage and those without. However the studies were small and there was a great deal of variation so the results should be interpreted cautiously.

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Partial indirect restorations: survival rates

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The aim of this review was to evaluate the survival rate of resin and ceramic inlays, onlays, and overlays and to identify the types of complications associated with the main clinical outcomes.

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Amelogenesis imperfecta: study suggests good outcomes from crown therapy

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This small trial found no difference between either Procera or IPS e.max Press crown in amelogenesis imperfecta patients in the short term. The survival rate at 2 years was 97% with only 3% of teeth suffering with endodontic complications.

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Porcelain-fused-to-metal crowns or all-ceramic crowns?

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This rapid review from the Canadian Agency for Drugs and Technologies in Health (CADTH) identified 29 studies including 10 systematic reviews. The findings suggest a lower long term survival rate for ceramic crowns (48%) compared with porcelain fused to metal crowns (62%).

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Zirconium based dental restorations –available evidence limited

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While this review of zirconium restoration included 27 studies, only 5 were RCTs. Furthermore only 4 studies had more than 5 years follow up. Ten studies included fewer than 20 restorations, so while good survival data was presented, the results should be viewed with caution.

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All -ceramic posterior crowns fractured at a higher rate than anterior crowns – ADA-EBD critical summary

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This ADA-EBD critical summary has looks at a 2012 systematic review by Wang et al.  The aim of the review was to evaluate the clinical fracture incidence of tooth-supported all-ceramic crowns according to restored tooth type. The appraiser considered the reviews search strategy to be thorough but noted that the studies were not assessed for [read the full story…]

Little evidence to assess the effect of ceramic crowns on natural tooth wear

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Some degree of tooth wear is a result of normal tooth-to-tooth contact. Some restorations have different wear characteristics and have been shown to produce accelerated wear.  The aim of this review was to assess tooth wear against ceramic crowns in posterior region both in vitro and in vivo. Searching was restricted to the Medline database. [read the full story…]