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Comparison of the effect of MI Varnish and V Varnish On the fluoride uptake of permanent tooth enamel (In Vitro)
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Atefeh Barzegar Sharifi    , Katayoun Salem , Aida Jafarpoor , Niloofar Farmanbar * |
| , n_f272@yahoo.com |
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Abstract: (527 Views) |
Background and Aim: Recognizing a combination of fluoride that has the most enamel uptake and consequently, the most resistance to decaying agents, is one of the most important concerns of preventive dentistry. Among the topical methods, fluoride varnishes are very effective in preventing and controlling caries in permanent teeth. The aim of this invitro study is to compare two types of sodium fluoride varnish (V Varnish and MI Varnish) on the rate of fluoride uptake into permanent tooth enamel.
Materials and methods: In this experimental invitro trial, 34 permanent posterior teeth were selected that had at least one circle with a diameter of six millimeters on the buccal and lingual surfaces with healthy enamel and no cracks, enamel defects, decay and fillings. Each tooth was first sectioned from the CEJ by a D&Z diamond disk and then divided into two buccal and lingual halves. Samples were divided into two groups, and certain surfaces were randomly stained on the buccal or lingual surface of the teeth randomly by V Varnish or MI Varnish. They were then stored in artificial saliva for 24 hours at 37° C. For using acid etch enamel biopsy method the teeth were etched for 30 seconds with 1M per chloric acid. After etching the window surfaces were washed by 0.2 KOH.Their calcium and fluoride content were then measured by spectrophotometer and potentiometer devices, respectively. Finally, the data was analyzed using SPSS version 20 software. The P-Value of the tests was considered less than 0.05.
Results: In summary, enamel fluoride uptake in the specimens exposed to MI Varnish was slightly higher than V Varnish(P=0.09), but there was no significant difference between them and the amount of calcium in biopsy solutions of V Varnish samples was slightly higher than MI Varnish, but there was no significant difference between them(P>0.79).
Conclusion: It seems that V Varnish and MI Varnish are equally effective in the fluoride uptake into permanent teeth enamel.
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| Keywords: Enamel, Fluoride Varnishes, Permanent teeth |
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Full-Text [PDF 642 kb]
(344 Downloads)
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Type of Study: original article |
Subject:
Pediatrics
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