치면열구전색제 도포 후 광중합 할 때까지의 경과시간이전색제 침투에 미치는 영향
Effect of time elapsed from application to curing on the penetration of sealant
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치면열구전색제 도포 후 시간에 따른 열구 내 침투율을 알아보고자 발치된 소구치 192개를 이용하여 전색제 도포 후 광중합 할 때까지 경과시간 3초, 5초, 10초, 20초별로 침투율을 비교 분석하였다. 여기에 추가적으로 상악과 하악, filled sealant와 unfilled sealant군으로 나누어 시간대별로 침투율에 차이가 있는지도 비교분석하였다. 그 결과 시간이 경과할수록, filled sealant군보다 unfilled sealant군에서, 상악보다는 하악에서 전색제의 침투율이 증가하였다. 이상의 결과에서 임상에서 치면열구전색을 시행할 때 이 결과를 임상적 지침으로 적용하면 유용하리라고 여겨진다.
Abstract
Occlusal fissures and pits are ideal places for the development of caries. Pit and fissure sealants are now considered as a very effective means to prevent dental caries. The purpose of this investigation was to examine the effect on the sealant penetration of the elapse of time from the application of sealant until exposure to visible light, and to examine the effect of the filler content and tooth position on the sealant penetration. 192 extracted human premolars were used to this experiment. Following enamel conditioning, a light-polymerized sealant was applied and 4 different periods of time(3, 5, 10, 20 seconds) were allowed until exposure to the light source. The results obtained were as follows; 1.According to time, in both unfilled sealant and filled sealant penetration increases deeply through mindfulness. 2. Sealant that apply to mandiblar premolar penetrated deeply through than to maxillay teeth. 3. Penetration difference according to filler content, unfilled sealant penetrated deeply through than filled sealant. The result from this study indicated that unfilled sealant penetrated most deeply in mandible when at least 20s time elapsed.
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