The included studies reported few , if any , endodontic complications .
Little or no differences emerged between teeth restored with  composite resins  and those restored with amalgam .
Composite resin is used extensively for restoration of teeth with vital pulps .
Although cell culture studies have disclosed harmful effects on pulpal cells , any untoward clinical effects , manifest as adverse pulpal responses , have yet to be determined .
This study comprises a systematic review , design ed to address the question of whether the risk of endodontic complications is greater with  composite resin restorations  than with  other restorative material s  , such as  amalgam .
Risk factors for developing apical periodontitis in a general population.
AIM To identify and describe individual and tooth-specific factors associated with the incidence or the persistence of apical periodontitis ( AP ) in a general population . METHODOLOGY In 1997 , 616 r and omly selected individuals had a full-mouth radiographic survey . In 2003 , 77 % of the participants returned for a new full-mouth radiographic examination .  All teeth were assessed individually and data recorded for caries , marginal bone level , and tooth restorations .  Multiple logistic regression analyses were performed to identify predictors of AP in the individual . Conditional logistic regression analyses were used to identify risk factors for development of AP in a tooth . Independent variables included a number of individual and tooth-specific variables . RESULTS Root fillings , coronal restorations , primary carious lesions , and reduced marginal bone level were associated with the incidence of AP in the individual . In teeth , the quality and presence of a coronal restoration was associated with the incidence of AP , and presence of a root filling also increased the risk of developing AP . Furthermore , an increased risk of developing AP was seen in relation to primary carious lesions , reduced marginal bone level , and molar teeth . The quality of the root filling was not associated with the incidence of AP , but the results suggest an association between the quality of the root filling and the healing of AP . CONCLUSIONS Results from the present study demonstrate that it is important to provide high quality dental restorations to minimize the risk of pulpal infection . The clinical focus , in relation to the incidence of AP , should be on improving the quality of the coronal restoration . The quality of a root filling was not associated with the incidence of AP , but may be of importance in relation to healing of AP
The included studies reported few , if any , endodontic complications .
Little or no differences emerged between teeth restored with  composite resins  and those restored with amalgam .
Composite resin is used extensively for restoration of teeth with vital pulps .
Although cell culture studies have disclosed harmful effects on pulpal cells , any untoward clinical effects , manifest as adverse pulpal responses , have yet to be determined .
This study comprises a systematic review , design ed to address the question of whether the risk of endodontic complications is greater with  composite resin restorations  than with  other restorative material s  , such as  amalgam .