Effect of fluoride varnish and dentifrices and its combination on deciduous enamel demineralization: An In vitro study

Abstract

Introduction:Dental caries remains the most important dental health problem in developing countries. Application of varnish on tooth surfaces is shown to promote the uptake of firmly bound fluoride by enamel, which is considered important. Along with the incorporation of fluoride into the crystalline lattice, there is formation of calcium fluoride compounds on enamel.Methodology:Seventy deciduous canines were covered with nail polish. A window measuring 4 mm × 4 mm was left on their buccal surface, These were randomly assigned to seven groups (n = 6): S: sound enamel not subjected to any regimen or treatment; N: negative control, subjected to the pH-cycling regimen without any treatment; D1 and D2: subjected to the pH-cycling regimen and treated two times daily with 1100 and 500 ppm F dentifrice, respectively; VF: fluoride varnish (subjected to F-varnish before and in the middle of the pH-cycling regimen); and VF + D1 and VF + D2. After a period of 10 days, sectioning of teeth was done, and enamel demineralization was measured.Results:The combination of dentifrice and varnish (groups VF + D1 and VF + D2) significantly reduced demineralization compared with the N group at all distances evaluated (P < 0.05), but the combination did not differ from the dentifrice groups at most distances from the surface (P > 0.05).Conclusion:The results of this study suggest that the combination of F-varnish with dentifrices containing 500 or 1100 ppm F is not more effective in reducing demineralization in primary teeth than the isolated effect of dentifrice containing 1100 ppm.

The Effect of Silver Diamine Fluoride and Fluoride Varnish on Microhardness of Primary Teeth Enamel (An In Vitro Study)

“…Group 2 (Silver Diamine Fluoride ): the teeth surfaces were exposed to silver diamine fluoride solution with a small brush for 2 min then washed with deionized water for 30 sec and lightly dried with absorbent papers,then introduced to PH cycle (19) . (20) .…”

Evaluation of the effectiveness of remineralization preparations used in paediatric dentistry practices

“…After the tissue remnants had been removed and the teeth had been cleansed and polished, the study samples were sealed with acid resistant nail polish, leaving only a 2 x 2 mm clearance on the buccal surfaces and subjected to demineralizationremineralization cycle to form initial enamel caries. In accord with the pH values of the solution used in the pH cycle, the time required to form the initial caries may vary (14,15). Based on the existing literature, demineralization solution was prepared to contain 2.2 mM Ca(NO3)2, 2.2 mM KH2PO4, 0.1 ppm NaF and 50 mM acetic acid.…”

The Effect of Silver Diamine Fluoride and Fluoride Varnish on Roughness of Primary Teeth Enamel (An In Vitro Study)

“…The remineralizing solution consist of CaCl 2 (1.5 mM), NaHPO 4 (0.9 mM), KCl (0.15 mM), pH of 7.0, 15 mL/tooth (20) . The duration of each cycle was one day (24 hours) and the teeth were subjected to a total of 10 cycles.…”