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Year : 2022  |  Volume : 14  |  Issue : 6  |  Page : 629-635

Assessment of microtensile bond strength of silver diamine fluoride with potassium iodide–treated carious primary dentin restored with glass ionomer cement and/or composite: In vitro study

Pediatric and Preventive Dentistry, D.Y. Patil University, School of Dentistry, Nerul, Navi Mumbai, Maharashtra, India

Correspondence Address:
Dr. J J Winnier
Pediatric and Preventive Dentistry, D.Y. Patil University, School of Dentistry, Nerul, Navi Mumbai, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/jioh.jioh_107_22

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Aim: Silver diamine fluoride (SDF) followed by potassium iodide (KI) application helps minimize discoloration; however, such an application may interfere with the bond strength of the restorative material. The aim was to assess the microtensile bond strength (mTBS) of SDF with KI–treated carious primary dentin, which were restored immediately or on the seventh day with glass ionomer cement (GIC) and/or composite resin. Materials and Methods: Thirty-six carious primary molars were collected, and gross debris was removed. Prior to the placement of the restoration, SDF/KI was applied to all the specimens and divided randomly into group I: immediate placement of restoration, and group II: seventh-day placement of restoration (n = 18, per group). Group I was further divided into group Ia: GIC was placed immediately, and group Ib: composite resin was placed. Group II was divided into group IIa: GIC placed on the seventh day, and group IIb: composite placed on the seventh day (n = 9, per group). The specimens were then stored in artificial saliva at 37°C. After 7 days, the specimens were sliced for microtensile strength test using a slow-speed diamond saw (Isomet 1000). The failure mode was evaluated with stereomicroscope at 40× magnification. Results: The mTBS was compared using Kruskal–Wallis test. Group Ib (immediate composite) showed the highest bond strength (1.71 ± 0.80) though this difference was not statistically significant (P = 0.88). The failure modes were compared using chi-square test, which showed no statistically significant difference between the groups. Conclusion: The mTBS showed no difference with the time of placement between the materials.

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