우치에서 레진 침투법 및 불소 적용의 탈회 저항성 비교
Comparison in Demineralization Resistance of Resin Infiltration and 1.23% Acidulated Phosphate Fluoride in Bovine Teeth
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초록
본 실험의 목적은 초기 우식 부위에 레진 침투법과 불소 적용 후 탈회 저항성을 비교하기 위함이다. 인공 우식을 유발한 시편을 대조군, 1.23% 산성불화인산염(Acidulated phosphate fluoride(APF))군, 레진 침투군으로 분류하고 각 재료를 적용 후 재탈회시켰다. 이후공초점 레이저 현미경(Confocal Laser Scanning Microscope(CLSM))을 이용하여 탈회 깊이를 측정하였고 주사전자현미경(SEM)을 이용하여 법랑질 표면 거칠기를 관찰하였다. CLSM을 이용하여 탈회 깊이를 측정하였을 때 대조군, 1.23% 산성불화인산염군, Icon® caries infiltrant군 순으로 감소하였다. 탈회깊이는 1.23% 산성불화인산염군, Icon® caries infiltrant군이 대조군에 비해서는 유의성 있는 차이를 보이지만 두 군 간의 차이가 없었다(p < 0.05). 표면거칠기는 대조군에서 매우 거칠고 표면이 불규칙한 양상을 보였고 1.23% 산성불화인산염군, Icon® caries infiltrant 군으로 갈수록 표면 거칠기와 불규칙성은 감소하였다.
Abstract
The aim of this study is to compare the differences of the demineralization resistance of resin infiltration and 1.23% acidulated phosphate fluoride in bovine teeth with artificial caries. We applied 1.23% Acidulated phosphate fluoride (APF) gel and Icon® caries infiltrant on the artificial bovine enamel carious lesion and then demineralized all samples. The depth of demineralization was measured by using Confocal Laser Scanning Microscope (CLSM) and observed the roughness and irregularity of the enamel was observed by Scanning Electron Microscope (SEM). In this experiment with demineralization resistance on smooth artificial carious lesion, less depth of demineralization, roughness, and irregularity of enamel was observed in APF gel and Icon® group than in the control group. There was no significant difference between the depth of demineralization of 1.23% APF gel and Icon® caries infiltrant group. However, resin infiltration is beneficial as less roughness and irregularity was observed on the enamel surface than when 1.23% APF gel is applied.
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