교정용 브라켓 주위의 불소를 이용한 법랑질 탈회 예방 방법 비교
Comparison of Prevention Methods against Enamel Demineralization adjacent to Orthodontic Bracket Using Fluoride
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고정식 교정 장치 치료의 흔한 부작용으로 구강 위생이 불량한 환자에서 브라켓과 밴드에 인접한 법랑질의 탈회가 발생한다. 이 연구는 불소를 이용한 다양한 법랑질 탈회 예방 방법 중 고정식 교정장치 주위의 탈회 예방에 무엇이 가장 효과적인지 알아보고자 시행되었다. 건전한 표면을 가진 발치된 소의 절치 80개를 실험재료로 하여 4개 군으로 분류하였다 : (I군) 대조군, (II군) V varnishTM, (III군) Tooth Mousse Plus®, (IV군) VanishTM XT. 각 군 별로 처리 후 인공우식용액에서 탈회시킨 다음 0일, 30일, 60일, 90일에 무기질 소실량과 비커스 표면미세경도를 측정하였다. 무기질 소실량은 IV군에서 가장 적었으며, 그 다음으로는 II군, III군 순으로 적었으며, 유의한 차이를 보였다. 표면미세경도는 IV군에서 가장 적었으며, 그 다음으로는 II군, III군 순으로 적었으며, 유의한 차이를 보였다. 이상의 연구결과, IV군이 브라켓 주위 법랑질 탈회 방지에 가장 우수한 효과를 보였다. III군은 대조군과 비교하여 유의한 법랑질 탈회 예방 효과를보였지만, 다른 군보다는 그 효과가 적었다.
Abstract
As a common side effect of fixed orthodontic treatment, demineralization of the enamel adjacent to the bracket and band occurs in patients with poor oral hygiene. The purpose of this study was to investigate what is the most effective method to prevent demineralization around the fixed orthodontic appliance among various methods using fluoride. 80 extracted bovine incisors with a healthy surface were classified into four groups as experimental materials: (Group I) Control group, (Group II) V varnishTM, (Group III) Tooth Mousse Plus®, (Group IV) VanishTM XT. After treatment for each group, mineral loss and Vickers surface microhardness were measured at 0, 30, 60 and 90 days after demineralization in artificial carious solution. Mineral loss was the lowest in group IV, followed by group II and group III, which showed a significant difference. The surface microhardness was the lowest in group IV, followed by group II and group III, which showed a significant difference. Through this study, group IV showed the best effect to prevent enamel demineralization around the bracket. Group III showed significant prevention of enamel demineralization compared with the control group, but the effect was less than that of the other groups.
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