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 .
Resin-modified glass ionomer cement restorations in primary molars.
The aim of this multicenter study was to evaluate the 3-year performance of a resin-modified glass ionomer cement  in primary molars . A total of 174 class II restorations were placed in 85 children by 6 dentists . The restorations were evaluated during a 3-year period using slightly modified USPHS criteria ( van Dijken 1986 ) . Of the 174 restorations 161 were evaluated after 1 year , 121 after 2 years and 68 after 3 years . A total of 81 , restorations exfoliated or was extracted during the study . The cumulative failure rate after 1 , 2 and 3 year was 8.1 % , 11.7 % and 19.8 % respectively . The main reasons for failure were secondary caries and loss of retention
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 .