A Comparative Evaluation of Shear Bond Strength of Type IX GIC to Demineralized Dentin in Primary Teeth with and without Application of SDF: An <i>In Vitro</i> Study

Abstract

Background: Both deciduous and permanent teeth with single surface cavities have been demonstrated to respond well to the atraumatic restorative technique (ART) combined with glass ionomer cement (GIC). However, ART is not widely accepted due to the prevalence of secondary caries. The silver-modified ART (SMART) technique was proposed to address the drawback of ART. Materials and methods: The ultrasonic scaler was used to clean and debride 65 healthy, noncarious primary molars. The enamel was removed initially from each sample, exposing the dentin. The samples were placed in a 40 mL solution containing 2.2 mM each of potassium dihydrogen phosphate (KH2PO4) and calcium chloride (Cacl2) (pH 4.5) for 3 days to demineralize the dentin. The specimens were then randomly and equally divided into five groups (n = 13) as follows: group I has no application of silver diamine fluoride (SDF) + GIC; group II has SDF air-dried + GIC right away; group III has SDF light-cured + GIC right away; group IV has SDF air-dried + GIC after 24 hours, and group V has SDF light-cured + GIC right away. Result: Except for SDF air-dried + immediate GIC vs SDF air-dried + GIC after 24 hours, where there was an insignificant difference noticed, there was a remarkable difference noted for the values between the groups (p-value, 0.01, 0.05). Conclusion: This study looked at all four treatment groups and found enhanced shear bond strength, which suggests that SDF does improve the durability of the restorations.

Keywords

• primary teeth
• shear strength
• silver diamine fluoride
• type ix gic