Two Preventive Measures on Caries Progression in Mixed Dentition Patients.

Inclusion Criteria .Children aged 6-9 years old. .Patients categorized as moderate to high caries risk (deft index \>1) showing more than 1 new carious lesions or restorations in the last 36 months according to "ADA Caries Risk Assessment Form (Age \>6)" .A split mouth study design was followed where all four second molars were selected for intervention in the primary molar group, while all first molars were selected for intervention in the permanent molar group. .The four molars selected in each patient (primary / permanent) should be fully erupted with no gingival overhangs /operculum and with no history of previous restorations or prior sealants. .According to International Caries Detection and Assessment System ICDAS grading, molars with (0, 1, 2) scores only were included. Exclusion Criteria: .Uncooperative or mentally challenged patients, with bad oral hygiene or rampant caries. .Patients providing history of bruxism or clenching affecting the posterior occlusion were excluded. .Children with known allergies or sensitivities to resins or silver products. .Molars that showed well-coalesced, self-cleansing pits \& fissures or shallow grooves and severe forms of hypoplasia / fluorosis were excluded. .Patients \& parents with high esthetic demands and concerns. .Unmotivated patients, or parents who refused to sign the consent form.