"Comparison of the Effects of Resin Infiltrant, Fluoride Varnish, and the Combined Application of Resin Infiltrant and Fluoride Varnish on Primary Molars in the Treatment of Proximal Non-Cavitated Carious Lesions in Children."

This randomized controlled clinical trial investigates the comparative effectiveness of fluoride varnish, resin infiltrant, and their combined use in managing superficial proximal carious lesions in primary molars of children aged 4 to 9 years. A total of 26 pediatric patients presenting with initial proximal caries lesions classified as E1, E2, and D1 levels were enrolled. Participants were randomly allocated into three groups: fluoride varnish only (F), resin infiltration only (RI), and a combination of resin infiltration with fluoride varnish (RI+F).

Interventions were applied according to standardized clinical protocols. Follow-up assessments, including clinical examinations and radiographic evaluations, were conducted at 3, 6, 9, and 12 months post-treatment to monitor lesion progression or regression. The primary outcome measure was the change in caries lesion status over time, evaluated through clinical and radiographic criteria.

Inclusion criteria

• Children aged 4-9 years
• Presence of non-cavitated proximal carious lesions in primary molars
• Consent obtained from parents or legal guardians

Exclusion criteria

• Cavitated or advanced proximal carious lesions
• Known allergy to fluoride varnish or resin infiltrant materials
• Systemic diseases affecting oral health or participation
• Prior restorative treatment on the target teeth