Class I restorations and restorations placed using rubber dam presented better AFR .
An elevated number of failures were observed due to recurrent caries , highlighting the need for professionals to work with a health-promoting approach .
BACKGROUND Several restorative material s with specific indications are used for filling cavities in primary teeth .
AIM To systematic ally review the literature in order to investigate the longevity of primary teeth restorations  and the reasons for failure .
Clinical evaluation of a polyacid-modified resin composite (compomer) in Class II restorations of primary teeth: a two-year follow-up study.
PURPOSE The aim of the study was to assess the clinical performance of a compomer restorative material ( Dyract , DeTrey/Dentsply ) for the restoration of Class II cavities , extended into dentin in primary teeth . METHODS The sample of the study consisted of 25 patients with 68 restored cavities . The restorations were evaluated with the modified Ryge criteria at baseline and after 6 , 12 and 24 months . Examination was clinical , radiographic , and observation of cast replicas under scanning electron microscope ( SEM ) . RESULTS After 24 months , 100 % of the restorations were retained , 3 % presented bulk fractures , and 6 % developed secondary caries at cervical margins . After 24 months , there was a significant reduction in marginal integrity while there was only slight change in anatomic form . Proximal contact was defective in 6 % of the restorations and 8 % showed marginal discoloration . SEM evaluation revealed a generalized occlusal and scattered marginal wear with no marginal gaps . CONCLUSION The compomer presented acceptable clinical performance in Class II restorations of primary teeth after 24 months in service
Class I restorations and restorations placed using rubber dam presented better AFR .
An elevated number of failures were observed due to recurrent caries , highlighting the need for professionals to work with a health-promoting approach .
BACKGROUND Several restorative material s with specific indications are used for filling cavities in primary teeth .
AIM To systematic ally review the literature in order to investigate the longevity of primary teeth restorations  and the reasons for failure .