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 .
Durability of a polyacid-modified composite resin (compomer) in primary molars. A multicenter study.
A polyacid-modified composite resin ( compomer ) restorative material was evaluated in primary molars in a multicenter study . One hundred and fifty-nine class-II restorations were placed by 6 dentists in 79 children . The restorations were evaluated during a 2-year period , using slightly modified USPHS criteria . After 1 year 151 restorations were evaluated and , after 2 years , 104 . The cumulative failure rate after 1 year was 8 % and after 2 years , 22 % . The main reasons for failure were loss of retention ( 12 % ) and secondary caries ( 5 % ) . The compomer material showed a high failure rate , comparable to that of other adhesive restorative material s currently used in primary molars . A large operator variation in failure rate indicates the technique sensitivity of the material
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 .