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 indicators for apical periodontitis.
OBJECTIVES The aim of the study was to identify risk indicators for  apical periodontitis ( AP )  in the individual . A parameter was defined as a ' risk indicator ' when its presence increased the individual 's risk of exhibiting AP . Risk indicators may , but need not be directly associated with the disease . METHODS The study included full-mouth surveys of 613 r and omly selected individuals , who were 20 - 60 years old and living in Aarhus County .  Logistic regression analyses were performed . The outcome variable was > or=1 AP/no AP . The independent variables were obtained from information on socioeconomic and dental status . RESULTS It was found that smoking , no usage of services from the dentist , > or=2 secondary caries lesions , > or=3 inadequate coronal fillings and the presence of root filling(s ) were statistically associated with AP . A separate analysis for individuals with no previous root fillings showed that individuals with regular dental visits as well as individuals who had all their teeth ( third three molars excluded ) were less likely to have AP , whereas individuals who had > or=3 inadequate coronal fillings were more likely to have AP . CONCLUSIONS The results from the present study of a Danish population showed that the most important risk indicator of having AP in the individual was the radiographic evidence of root fillings . The presence of several caries lesions , the quality of the dental treatment , the regularity of dental visits and smoking were also statistically associated with AP . Further , the socioeconomic status of the individual did not provide much additional information on the periapical status
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 .