الفهرس 
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Abstract
Silver diamine fluoride (SDF) has proven to be a very promising and effective way for management of dental caries in paediatric patients. The deep cavities can be treated by SDF before placement of restorative materials. This study was conducted to evaluate the effect of SDF on shear bond strength (SBS) and microleakage of resin modified glass ionomer cement (RMGIC) and nano-hybrid composite resin (NHCR) to caries-affected dentin (CAD).
A total of 64 carious primary molars were prepared for shear bond strength and microleakage testing. Specimens were divided into 2 groups (32 specimens each); group I: RMGIC, group II: NHCR. Each group was further subdivided into 2 subgroups (16 specimens each); Subgroup A: treated with SDF before application of restorative material, Subgroup B: restorative material is applied directly over CAD. In each subgroup, 9 specimens were evaluated for shear bond strength and 7 specimens were evaluated for microleakage. Shear bond strength was assessed using Universal testing machine. Mean and Standard deviation values for each subgroup were calculated. Mode of failure was evaluated under light stereomicroscope at 40x. Whereas microleakage was evaluated under light stereomicroscope at 25x. Frequency and percentage values for each subgroup were calculated. The significance level was set at p ≤0.05 within all tests. Statistical analysis was performed using R statistical analysis software version 4.1.3 for Windows.
The results revealed the following:
1- Subgroup IA had the highest shear bond strength value with no statistically significant difference to Subgroup IB (p=0.847).
2- Subgroup IIA had the lowest shear bond strength value with statistically significant difference to Subgroup IIB (p<0.001).
3- Both Subgroups IA and IB had significantly higher shear bond strength values than Subgroups IIA and IIB respectively (p<0.001).
4- There was no significant difference between different subgroups regarding mode of failure (p>0.05).
5- There was no significant difference between different subgroups regarding both occlusal and gingival microleakage scores (p>0.05).