Comparative Evaluation of the Effect of Different Concentrations of Silver Diamine Fluoride on the Shear Bond Strength of Composite Resin on Primary Tooth Dentin: An In Vitro Study.

BACKGROUND

Silver diamine fluoride (SDF) is a nominally invasive agent for caries arrest, but its impact on composite resin bond strength in primary teeth remains unclear.

AIM: To review the effect of different SDF concentrations (12%, 30%, 38%) on the shear bond strength (SBS) of resin composite to primary tooth dentin.

MATERIALS AND

METHODS

Forty surgically removed primary teeth were assigned to four groups: Control (no SDF) and three experimental groups (12%, 30%, or 38% SDF). After demineralization and SDF application, the resin composite was bonded to dentin. SBS was quantified with the aid of a universal testing machine, and the data were subjected to statistical evaluation.

RESULTS

The control group showed the highest SBS (10.28 MPa), while SDF-treated groups exhibited significantly lower values (7.36-7.72 MPa). The analysis revealed no statistically significant intergroup disparity among the SDF concentrations (p > 0.05).

CONCLUSION

SDF pretreatment reduces composite resin bond strength to primary dentin, but the concentration (12-38%) does not significantly influence the outcome. Clinicians should consider this when combining SDF with composite restorations.

CLINICAL SIGNIFICANCE: Despite a reduction in bond strength, this study supports the use of SDF because of its therapeutic efficacy in arresting carious lesions in primary teeth, as different concentrations (12-38%) do not significantly affect composite bonding. SDF can be confidently used in minimally invasive pediatric care where long-term caries control is a priority.

HOW TO CITE THIS ARTICLE: Deka S, Chaudhary S, Manuja N, et al. Comparative Evaluation of the Effect of Different Concentrations of Silver Diamine Fluoride on the Shear Bond Strength of Composite Resin on Primary Tooth Dentin: An In Vitro Study. Int J Clin Pediatr Dent 2026;19(2):223-227.