Comparative Evaluation of Microtensile Bond Strength of Restorative Materials on Silver Diamine Fluoride and Nonsilver Diamine Fluoride-treated Tooth: An In Vitro Study
Keywords :
Composite resin, Glass ionomer cement, Microtensile bond strength, Scanning electron microscope, Silver diamine fluoride
Citation Information :
Hafijullah A, Vellore KP, Ganesh M, K S, S N, Challa SK, Mahanthy GS. Comparative Evaluation of Microtensile Bond Strength of Restorative Materials on Silver Diamine Fluoride and Nonsilver Diamine Fluoride-treated Tooth: An In Vitro Study. Int J Clin Pediatr Dent 2025; 18 (2):153-156.
Purpose: This study aimed to evaluate the influence of silver diamine fluoride (SDF) on the microtensile bond strength (MBS) of glass ionomer cement (GIC) and composite restorations in carious primary dentin and to assess the modes of restoration failure.
Methods: Seventy-two carious primary molars were categorized into four groups (n = 18). Samples were treated with 0.9% sodium chloride for 2 months, sectioned at the cementoenamel junction (CEJ), and stored in artificial saliva for 14 days. The SDF-treated groups were exposed to 38% SDF solution, while the control groups underwent restoration without prior SDF application. Specimens were tested for MBS using a universal testing machine, and failure modes were observed under a scanning electron microscope.
Results: The highest MBS was observed in the GIC-SDF group (group II), followed by the composite restoration without SDF (group III), and the lowest in the composite-SDF group (group IV). Adhesive failure predominated in the GIC-SDF group, while the composite-SDF group exhibited mixed failure modes.
Conclusion: The application of SDF did not adversely affect the bond strength of GIC but reduced the bond strength of composite resin. Adhesive failure was more common with GIC-SDF, while mixed failure characterized composite-SDF.
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