Adolescent 1 Adult 1 Bacteria, Anaerobic 1 Bacterial Load 1 Case-Control Studies 1 Child 1 Dental Caries 1 Dentinal caries 1 Double-Blind Method 1 Female 1 Humans 1 Lactobacillus 1 Male 1 Microbiology 1 Molar 1 Permanent molars Pit and Fissure Sealants 1 Randomized clinical trial 1 Selective caries removal 1 Streptococcus 1 Young Adult 1 adolescent 1 adult 1 anaerobic bacterium 1 bacterial load 1 case control study 1 child 1 controlled study 1 dental caries 1 diagnostic imaging 1