Basili CP, et al. – A split–mouth, randomized controlled clinical trial was performed to assess the efficacy of proximal sealing for avoiding the development of new caries lesions or arresting incipient caries lesions on the mesial surface of first permanent molars (6m) abutting lesions on the distal surface of second primary molars (05d) in children at high caries risk. Findings revealed that preventive sealing on sound 6m surfaces abutting 05d lesions in children at high caries risk efficaciously prevents the development of caries lesions. It was noted that therapeutically sealing active non–cavitated caries lesions lessens the progression.