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KMID : 0988420020140010053
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Journal of Dental Science (C.N.U.)
2002 Volume.14 No. 1 p.53 ~ p.61
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The Effects of a Sealant Resin on Enamel Demineralization in Orthodontic Bracket Bonding
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Abstract
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The purpose of this study was to evaluate the effects of a sealant resin on enamel demineralization in orthodontic bracket bonding.
The forty eight extracted sound bovine teeth was subdivided into four groups and treated with Phase Ⅱ^(r) on the surface. Group 1 was not treated, Group 2 was acid etched with 37% phosphoric acid for 30 seconds, Group 3 was sealant applied after acid etching and Group 4 was resin paste applied after acid etching and sealant application. Each group was demineralized in artificial caries solution.
Demineralized enamel depth was measured using by confocal laser scanning microscopy.
The results were as follows.
1. The mean demineralized enamel depth was Group 1 (47.4㎛), Group 2 (61.8㎛), Group 3 (13.9㎛), Group 4 (8.2㎛).
2. The demineralized enamel depth was increased in Group 2 than Group 1 (p<0.05).
3. The demineralized enamel depth was reduced in Group 3 than Group1 and Group 2 with statistically significant differences (p<0.05).
4. Group 4 was very little demineralized.
The results of the present study indicate that sealant application is useful for reducting enamel demineralization in orthodontic bracket bonding.
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