Caries development every six month during 2 years [clinicaltrials_resource:43cf61510942621697c1449f491890db]

pit and fissure sealant on one randomized tooth by pair of permanent molar

Caries development every six month during 2 years [clinicaltrials_resource:43cf61510942621697c1449f491890db]

pit and fissure sealant on one randomized tooth by pair of permanent molar