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Objectives: To evaluate in vitro, the effect of 38% silver diamine fluoride (SDF) pretreatment on the microleakage and shear bond strength of resin-modified glass ionomer cement to primary dentin. Materials and methods: A total of 80 extracted sound primary molars were included in this in-vitro study and randomly assigned into four equal groups (n=20 teeth/group) according to the evaluation test performed. For microleakage test, class V cavities were prepared on the buccal surface of forty teeth and randomly allocated into Group I (experimental)(n=20): Primary dentin pretreated with 38% SDFfor three minutes and Group II (control)(n=20): Primary dentin treated with distilled water for three minutes. Class V cavities were restored with RMGIC, thermocycled, immersed into 1% methylene blue solution for 24h, sectioned longitudinally in a bucco-lingual direction and then examined under stereomicroscope at 40x magnification. Also forty teeth were assigned for SBS test and randomly grouped into Group III (experimental) (n=20): Primary dentin flat surface pretreated with 38% SDF. Group IV (control) (n=20): Primary dentin flat surface pretreated with distilled water. Using a Universal Testing machine SBS were determines. Failure mode was evaluated using stereomicroscope. Data were collected and subjected to statistical analysis. Results: There was no statistically significant difference in microleakage between experimental and the control group (P=0.21). However, the experimental group had significantly higher SBS than the control group. (P=0.0001) Conclusion: Primary dentin pretreatment with 38% SDF does not influence the marginal seal of RMGIC to primary dentin. However, it raises the shear bond strength between them.

alexandria dental journal

Effect of silver diamine fluoride pretreatment on microleakage and shear bond strength of resin modified glass ionomer cement to primay dentin (in-vitro study)