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J Korean Acad Pediatr Dent. 2004;31(2): 212-222.
THE EFFECT OF FLUORIDE VARNISH AND ACIDULATED PHOSPHATE FLUORIDE GEL ON ARTIFICIAL CARIES LESION - A MICROCOMPUTED TOMOGRAPHIC STUDY -
Sung-Kwon Moon, Jae-Cheoun Lee, Young-Jae Kim, Sang-Hoon Lee, Se-Hyun Hahn, Ki-Taeg Jang
서울대학교 치과대학 소아치과학교실 및 치학연구소
Corresponding Author: Ki-Taeg Jang ,
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ABSTRACT
The application of acidulated phosphate fluoride gel(APF) and fluoride varnishes are the most common topical fluoride therapy. The purpose of this in vitro study was to compare the remineralization effects of two topical fluoride agents, APF gel and fluoride varnish with microtomograph and 3D image analyzer without sample preparation and chemical fixation. For the purpose of the study, the artificial caries lesion was caused on the caries-free permanent pre molar and 48 specimens were divided into three groups each containing 16 specimens No application was performed on group 1, which acted as control group. Group 2 was treated with APF gel and was removed after a minute. Group 3 was treated with the topical application of fluoride varnish and removed after 45 minutes. Each specimen was placed into a closed container with 50ml of a artificial saliva during three months and the 3D images of the remineralization area were taken using the SkyScan each month. Using the density-measuring program in V worksTM, the density value of the remineralization area was measured. The following results were obtained: 1. All groups demonstrated an increase in the density of artificial caries lesion with time. 2. The density was significantly higher in APF gel and fluoride varnish group than control group at 1 month, 2 months, 3 months after the treatment(P<0.05). 3. The difference of the density between that "prior to treatment" and that "1 month after treatment" in Group 2 and Group 3 was significantly higher than that of Group 1 and, the difference of the density between that "1 month after treatmen" and that "2 month after treatment" in Group 3 was significantly higher than that of Group 1 and 2(P<0.05). 4. The fluoride varnish was more effective after 2 and 3 months and continuous than the APF gel.
Keywords: Fluoride varnish | Acidulated phosphate fluoride gel | Artificial caries lesion | Remineralization | Microcomputed tomography
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