Evaluation of remineralization and acid resistance effect in fluoride varnish by Micro-computed tomography (미세전산화단층촬영술을 이용한 불소바니쉬의 재광화 및 내산성 평가 )

오한나; Seong-Soog Jeong (정성숙); 이혜진; Hye-Jeong Youn (윤혜정); 정은주; 하명옥

Evaluation of remineralization and acid resistance effect in fluoride varnish by Micro-computed tomography

Journal of Korean society of Dental Hygiene
Abbr : J Korean Soc Dent Hyg
2010, 10(5), pp.947-953
Publisher : Korean Society of Dental Hygiene
Research Area : Medicine and Pharmacy > Dentistry

오한나 ¹, Seong-Soog Jeong ¹, 이혜진 ¹, Hye-Jeong Youn ², 정은주 ³, 하명옥 ⁴

¹전남대학교
²신흥대학교
³청암대학
⁴광주보건대학교

Candidate

ABSTRACT

Objectives : The purpose of this investigation was to evaluate the remineralization and acid resistance in fluoride varnish by Micro-computed tomography (micro CT). Methods : Specimens of bovine teeth enamel were embedded in resin, polished and randomly divided into 3 groups (a control group, a NaF solution group, a fluoride varnish group). Each group has 3 specimens that was standardized according to Vickers hardness number (VHN). Specimens were immersed in demineralization solution for 72 hours. The control group had no treatment, the NaF solution group was treated by a 5% NaF solution for 4 minutes, and the fluoride varnish group was treated by a fluoride varnish for one hour. All specimens were subjected to a chemical pH cycling method for 14 days. After a chemical pH cycling method, the density were measured using micro CT. Then, specimens were immersed in each demineralization solution for 72 hours. After demineralization processed, the density were measured using micro CT. Results： 1. The density was significantly higher in the fluoride varnish and 5% NaF solution group than that of the control group after 14 days cycling (p<0.05). And the density value of the fluoride varnish group was higher than that of the 5% NaF solution, with no significant difference. 2. The differences of density after acid resistance treatment were statistically significant among 3 groups(p<0.05). Conclusion : It is suggested that fluoride varnish showed the remineralizing effect and acid resistance effect on the enamel, and micro CT could be used to evaluate the change of enamel lesion.

KEYWORDS

acid resistance, fluoride varnish, micro-computed tomography, remineralization

Citation status

* References for papers published after 2023 are currently being built.

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