الفهرس 
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Abstract
The primary objective of this study was to evaluate and compare the effect of: Fluoride varnish (5%NaF varnish), 38% Silver diamine fluoride (SDF) and Fluoride varnish containing CPP-ACP On the mineral content of artificial enamel caries in primary teeth after application of each agent and pH cycling.
A total of forty-eight primary molars were used in this study. Primary molars were obtained from the outpatient’s dental clinic of Pediatric Dentistry Department, Faculty of Dentistry, Ain Shams University. All soft tissue and hard deposits were removed using a sickle scaler, then teeth were polished with anon fluoride containing polishing paste and a rubber cup mounted in a low speed hand piece under water irrigation, Teeth were classified according to remineralizing agent into 4 groups.
The main findings of the study revealed that:
As regard Ca content: There was a significant difference between different groups (p<0.001). The highest value was found in MI (66.57±0.63), followed by ClinproTM (66.23±0.51), then SDF (64.51±0.52), while the lowest value was found in the control group (34.68±3.29). Post hoc pairwise comparisons showed the control group to have significantly lower values than other groups (p<0.001).
As regard P content; There was a significant difference between different groups (p<0.001). The highest value was found in MI (31.46±0.56), followed by SDF (30.93±1.02), then ClinproTM (30.53±2.19), while the lowest value was found in the control group (18.33±1.90). Post hoc pairwise comparisons showed the control group to have significantly lower values than other groups (p<0.001).
As regard Ca/P; There was a significant difference between the different groups (p=0.003). The highest value was found in MI (2.19±0.18), followed by ClinproTM (2.11±0.05), then SDF (2.09±0.06), while the lowest value was found in the control group (1.90±0.18). Post hoc pairwise comparisons showed the control group to have a significantly lower value than other groups (p<0.001).
As regard F: There was no significant difference between different groups (p=0.703). The highest value was found in SDF (0.93±1.18), followed by MI (0.89±0.34), then ClinproTM (0.66±0.68), while the lowest value was found in the control group (0.54±0.52).
As regard to lesion depth: There was a significant difference between different groups (p<0.001). The highest value was found in the control group (576.69±42.66), followed by SDF (293.32±46.82), then ClinproTM (285.43±44.70), while the lowest value was found in MI (226.23±44.25). Post hoc pairwise comparisons showed the control group to have a significantly higher value than other groups (p<0.001). In addition, they showed SDF and ClinproTM to have significantly higher values than MI (p<0.001).
Based on the present findings, MI varnish and SDF as an alternative can be recommended to manage white spot lesions in enamel of primary teeth.