Effect of silver diamine fluoride pretreatment on microleakage and shear bond strength of resin modified glass ionomer cement to primay dentin (in-vitro study)

Abstract

OBJECTIVES:To evaluate in vitro, the effect of 38% silver diamine fluoride (SDF) pretreatment on the microleakage and shear bond strength of resin-modified glass ionomer cement to primary dentin. MATERIALS AND METHODS: A total of 80 extracted sound primary molars were included in this in-vitro study and randomly assigned into four equal groups (n=20 teeth/group) according to the evaluation test performed. For microleakage test, class V cavities were prepared on the buccal surface of teeth in Group I (experimental)(n=20): Primary dentin pretreated with 38% SDF for three minutes and Group II (control)(n=20): Primary dentin treated with distilled water for three minutes. Class V cavities were restored with RMGIC, thermo-cycled, immersed into 1% methylene blue solution for 24h, sectioned longitudinally in a bucco-lingual direction and then examined under stereomicroscope at 40x magnification. Also forty teeth were assigned for SBS test and randomly grouped into Group III (experimental) (n=20): Primary dentin flat surface pretreated with 38% SDF. Group IV (control) (n=20): Primary dentin flat surface pretreated with distilled water. Using a Universal Testing machine SBS were determines. Failure mode was evaluated using stereomicroscope. Data were collected and subjected to statistical analysis. RESULTS: There was no statistically significant difference in microleakage between experimental and the control group (P=0.21). However, the experimental group had significantly higher SBS than the control group. (P=0.0001). CONCLUSIONS: Primary dentin pretreatment with 38% SDF does not influence the marginal seal of RMGIC to primary dentin. However, it raises the shear bond strength between them.

Effect of Silver Diamine Fluoride Pretreatment on Shear Bond Strength of Resin Modified Glass Ionomer Cement to Primary Dentin

“…SDF is used for several years ago and has promising results in prevention and arresting caries. It is only blamed for discoloration of tooth concluded that SBS for SDF 38% pre-treated teeth increased [23], [24]. Furthermore, Pérez-Hernández et al founded that SDF increases adhesion of pit and fissure sealant to tooth structure [25].…”

The Effect of Potassium Iodide Application on the Bond Strength of Orthodontic Brackets Bonded to Silver Diamine Fluoride Pretreated Dentin - “An In-Vitro Study.”

“…21 The SDF concentration of 38% was chosen for this study according to previous studies, which concluded that this concentration is the optimum for arresting and preventing caries in primary teeth in comparison to 12% concentration. 22,23 Rinsing the samples with water was recommended while using SDF as stated in previous studies that rinsing the mouth after SDF application can prevent the significant reduction in bond strength between the applied adhesive rein and sound dentin. 3,24 Assure™PLUS consists of hydroxyl ethyl methacrylate (HEMA) molecule which can aid in the moisture control at bonding step.…”

Effect of Silver Diamine Fluoride and Potassium Iodide on Micro-tensile and Shear bond strength of Glass Ionomer Restoration to carious Dentin of Primary Molar (In vitro study)

“…To obtain a flat dentin surface, the carious surface of the crowns was gently polished using the water cooled cutting machine. (19)…”

“…After the glass ionomer was left to harden for five minutes, the specimens were kept in saline for 24 hours. (2,5,19)…”

“…A shear force applied perpendicularly to the GIC button at a distance of 1-mm from the carious dentin surface to the loading head using the Universal Testing Machine until bond failure. (2,19) The load required to de-bond GICs is measured in Newtons. The bond strength was measured in MPa (Figure 4).…”