AND PRACTICAL IMPLICATION S Because new caries lesions in the margins of restorations are the main reason for failure and replacement of restorations in primary teeth , it is important to know whether there is a benefit in using GICs in both occlusal and occlusoproximal cavities
BACKGROUND Fluoride released from glass ionomer cements ( GICs ) is capable of preventing caries lesions .
However , the preventive effect in margins of occlusal and occlusoproximal restorations have not been proved .
Risk factors for secondary caries in direct composite restorations in primary teeth.
BACKGROUND Secondary caries or caries adjacent to restorations is the most frequent reason for replacement of dental restorations . Though , limited data is available on variables influencing the development of secondary caries in primary teeth . AIM To investigate risk factors for the development of secondary caries adjacent to direct composite restorations in primary teeth . DESIGN For this retrospective study , data of 2417 composite restorations , which were placed due to primary carious lesions , were considered . A total of 212 restorations failed due to secondary caries within a maximum observation period of 8 years . A control group was r and omly selected . Mann-Whitney U-test , binomial logistic regression with backward elimination and Cox regression with frailty model were performed ( P < 0.05 ) . RESULTS The overall caries experience amounted to 6.3 dmft and 13.3 dmfs . 72.5 % of restorations failed within the first 2 years . Older children and children from families with a higher socio-economic status showed a lower risk for secondary caries . Further , the dentist and the adhesive had a significant influence on the longevity . Posterior restorations had a higher risk to fail in comparison with anterior restorations . CONCLUSIONS Within the limitation of this study , it is concluded that the development of secondary caries is influenced by several factors . Nevertheless , the secondary caries rate was found to be relatively low in this high-risk population
AND PRACTICAL IMPLICATION S Because new caries lesions in the margins of restorations are the main reason for failure and replacement of restorations in primary teeth , it is important to know whether there is a benefit in using GICs in both occlusal and occlusoproximal cavities
BACKGROUND Fluoride released from glass ionomer cements ( GICs ) is capable of preventing caries lesions .
However , the preventive effect in margins of occlusal and occlusoproximal restorations have not been proved .