Studies investigating restorations placed in the primary dentition showed no significant differences between the groups after 12 and 24 months .
In the permanent dentition , the longevity of ART restorations is equal to or greater than that of equivalent amalgam restorations for up to 6.3 years and is site-dependent .
No difference was observed in primary teeth .
The aim was to report on the longevity of  restorations placed using the atraumatic restorative treatment ( ART ) approach  compared with that of  equivalent placed amalgam restorations .
One year clinical evaluation of two different types of composite resins in posterior teeth.
AIM The aim of this study was to assess the clinical performance of two adhesive restorative systems ( Single Bond/Filtek P-60 and Single Bond/Filtek Z-250 ) in posterior teeth using a modified United States Public Health Service ( USPHS ) system . METHODS AND MATERIAL S A total of 70 restorations were placed in molars and premolars in 30 patients ( 14 females and 16 males ; 18 - 40 years ) by one operator . All restorations were directly evaluated by two examiners at baseline , six months , and 12 months using the following modified USPHS rating criteria : marginal integrity , marginal discoloration , surface texture , contour , postoperative sensitivity , and recurrent caries . RESULTS At six and 12 months all restorations were available for evaluation of marginal discoloration , surface texture , contour , postoperative sensitivity , and recurrent caries that remained with 100 % Alpha-ratings at recalls for both restorative systems . Marginal integrity for P-60 was scored as 94.3 % and 91.4 % Alpha at six and 12 months , respectively , and rates for Z-250 were 100 % and 97.1 % Alpha at six and 12 months , respectively . Statistical analysis was completed with Fisher 's exact and McNemar Chi-square tests at a significance level of 5 % ( P<0.05 ) . CONCLUSION All restorations were clinical ly satisfactory and no significant differences were found among them . CLINICAL SIGNIFICANCE Posterior resin composite restorations placed under appropriate conditions provide a satisfactory clinical performance
Studies investigating restorations placed in the primary dentition showed no significant differences between the groups after 12 and 24 months .
In the permanent dentition , the longevity of ART restorations is equal to or greater than that of equivalent amalgam restorations for up to 6.3 years and is site-dependent .
No difference was observed in primary teeth .
The aim was to report on the longevity of  restorations placed using the atraumatic restorative treatment ( ART ) approach  compared with that of  equivalent placed amalgam restorations .