الفهرس 
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Abstract
Tooth decay is one of the most common diseases in the human and dental care providers are increasingly involved in early interventions to prevent it in young children, also had little option other than invasive and costly specialist treatment in the hospital under general anesthesia.
To enhance the caries-arresting effects, anti-caries products with higher fluoride concentrations were introduced for caries control
Caries can be prevented and arrested using fluoride-based materials like professional applied varnishes. Silver Diamine Fluoride has been used for arresting dental caries in children worldwide since the early 1960s, cleared by the Food and Drug Administration in the United States in 2014 and in 2015 that product is available.
Aim of the study
The aim of this study was to:
-Compare and evaluate clinical performance and caries arresting activity of atrumatic restorative treatment (ART) versus glass ionomer and silver diamine fluoride on primary molars (SMART) (in vivo).
- Evaluate effect of silver diamine fluoride on bond strength of glassionomer restoration to dentine (in vitro).
Results of invitro part:
Shear bond assessment
Shear bond strength (SBS) evaluation represented a mean of 11.92 MPa in the experimental group and 6.99 MPa in the control group. The highest bond strength value was recorded in the SDF pre-treated group while the lowest shear bond strength value was recorded in the control group. Using independent t test, 38%SDF pre-treated primary dentin presented statistically significant higher bond strength (P=0.003).
Failure mode assessment
Comparison of the Failure mode assessment in the groups was done using Fisher’s exact test. There was no statistically significant difference between the two groups, p-value =0.070.
Results or in-vivo part
Chi square test and fisher’s exact test were used to compare the experimental and control groups. There was no statistically significant difference regarding post operative hypersensitivity, retention, and marginal adaptation.
While for the colour match, there was a statistically significant difference. All members of the control group were grade A, while those in experimental group were grade C, p-value < 0.001.
Also, there was a statistically significant difference for the marginal discoloration, since all the members of the control group were grade A, while those in experimental group were grade C, p-value < 0.001.