This review to assess if surgical crown lengthening produces stable clinical outcomes only identified 5 small trials all at high risk of bias
[read the full story...]Crown lengthening – Are outcomes stable?
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Metal-free fixed dental prosthesis – insufficient evidence to support or refute effectiveness
Only 9 small RCTs were included in this Cochrane review of metal-free materials for prosthodontic restorations providing insufficient evidence to support or refute the effectiveness of metal-free materials for fixed prosthodontic treatment over metal-ceramic or other type of standard restorations.
[read the full story...]Post-retained single crowns performance linked to amount of coronal structure
This review of post-retained crowns on endodontically treated teeth included 9 RCTs. Findings suggest that that the number of remaining coronal walls and the use of posts are key factors for the success/ survival of these restorations. However the quality of the available evidence is low.
[read the full story...]Single restorations on root filled posterior teeth
5 studies at high risk of bias were included in this review of the success of restoration in posterior root filled teeth findings suggest that the more tooth remaining teh better the treatment outcome.
[read the full story...]Ceramic crowns: effect of endodontic access on fracture resistance
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.
[read the full story...]Amalgam outperforms composite in range of posterior cavity types
This review of failure rate of single-unit prostheses versus direct restorations in vital posterior teeth included 14 studies (5 RCTs) finding that composite had a significantly higher failure rate than amalgams, regardless of the remaining tooth structure. For teeth with fewer than 2 remaining walls, direct restorations presented significantly higher failure rates than crowns .
[read the full story...]Preformed paediatric crowns: little evidence for aesthetic crowns
Only 7 small studies at high risk of bias were available for this review of preformed paediatric aesthetic crowns. They provide little evidence on which to r change of practice particular for posterior teeth where the use of stainless steel crowns is recommended.
[read the full story...]All-ceramic crowns: failure rates higher in posterior teeth
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.
[read the full story...]Endocrown restorations – little evidence to support this approach
This review of endocrown restorations identified 8 studies only 3 of which were clinical. These 3 clinical studies were very small and two of them were retrospective providing very low quality evidence to support their effectiveness.
[read the full story...]Gingival retraction: cord or cordless systems?
This review of corded vs. cordless gingival retraction systems included 7 trials. Both may have a role with corded systems being suggested when there is a greater need for gingival displacement.
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