This review of different direct restorative materials for treating cavitated caries lesions on anterior and posterior primary and permanent teeth included 38 RCTs. None of the included studies was at low risk of bias and the findings suggest that the effectiveness of each included direct restorative material varied across outcomes. There was also limited evidence to support clinically important differences between the direct restorative materials assessed.
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No new trials were available for this Cochrane review update. Only 8 RCTs were available providing inconsistent, low-quality evidence for a difference in postoperative hypersensitivity after placing a liner for posterior resin-based composite restorations in adult permanent teeth.
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This Cochrane review of liners under posterior composite restoration included 8 RCTs identifying little evidence to show that they reduced sensitivity and no evidence of an effect on longevity of restorations.
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This Cochrane review update only identified 1 RCT assessing the difference in survival between bonded and non-bonded amalgam restorations providing insufficient evidence to support or refute a difference.
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