Abstract
This study aims: (1) to evaluate in vivo the reproducibility and validity of QLF and DIAGNOdent pen in detecting caries lesions activity on occlusal surface of primary molars and to test the association between caries activity and the presence of red fluorescent bacterial plaque; (2) to evaluate in vivo the validity of QLF and DIAGNOdent pen in relation to caries activity in primary molar…