A STUDY OF MICROLEAKAGE AND PENETRATION ABILITY OF A PIT AND FISSURE SEALANT APPLIED ON CARIOUS FISSURES

우식성 열구에 적용한 치면열구전색제의 미세누출과 침투도에 관한 연구

  • Im, El (Department of Pediatric Dentistry, School of Dentistry, Chosun University) ;
  • Lee, Sang-Ho (Department of Pediatric Dentistry, School of Dentistry, Chosun University) ;
  • Lee, Nan-Young (Department of Pediatric Dentistry, School of Dentistry, Chosun University)
  • 임엘 (조선대학교 치과대학 소아치과학교실) ;
  • 이상호 (조선대학교 치과대학 소아치과학교실) ;
  • 이난영 (조선대학교 치과대학 소아치과학교실)
  • Received : 2010.05.18
  • Accepted : 2010.08.08
  • Published : 2010.08.31

Abstract

The purpose of this study is to compare microleakage and penetration depths of sealants applied in carious and sound fissures. Extracted premolars(n=80) were divided into 4 groups according to caries status. 1; sound, 2; stained, 3; initial caries, 4; enamel caries. Sealants were applied to the occlusal groove as per manufacturers' instructions, and specimens were thermocycled, stained, sectioned, and examined for microleakage and penetration ability. The results of the present study are as follow: 1. It showed significantly higher microleakage scores in group I than group Two, Three, Four(p<0.05), but no significant difference was found between group Two, Three, and IV(p>0.05). 2. It showed significantly higher penetration scores in group Four (p<0.05), followed by group One, Two, Three, but no significant difference was found between group One, Two, and Three(p>0.05). Based on the results of present study, when the borders of the fissure sealant are on carious enamel, a significantly higher microleakage must be expected. It is considered that depth of enamel caries in the fissure should be taken into account when applying a fissure sealant.

본 연구에서는 교합면 열구우식에 대한 진단학적 기준을 기존의 시각에만 의존하지 않고 레이저형광을 이용한 광학적 우식진단법을 추가로 도입하여 우식의 상태를 건전, 착색, 초기 우식, 법랑질 우식의 4가지 단계로 세부 분류하여 치면열구전색제를 도포하고 미세누출과 침투도를 조사함으로써 치면열구전색제의 적용 기준에 대한 임상적 지침을 마련하고자 하였다. 시진과 탐침으로 검사하여 충전물, 파절, 표면 결함이 없고, 방사선사진을 통해 상아질 우식증이 존재하지 않는 영구 소구치 80개를 실험대상으로 사용하였다. 교합면 우식성 열구에 치면열구전색이 가능한지 여부를 평가하기 위해 시진 및 탐침, 그리고 레이저형광을 이용한 치아우식증 진단기기인 DIAGNOdent$^{(R)}$ (Kavo, Biberach, Germany)를 사용하여 교합면 열구의 상태를 건전, 착색, 초기우식, 법랑질우식의 4가지 단계로 분류하였다. 제조회사의 지시대로 치면열구전색을 시행한 후 전색제의 미세누출과 침투도를 비교 평가한 결과는 다음과 같았다. 1. 법랑질우식인 제Four군에서 미세누출이 가장 크게 나타났으며, 건전, 착색, 초기우식군인 제I군, II군, III군과 비교했을 때 통계학적 유의차를 나타냈다(p<0.05). 2. 치면열구전색제의 침투도가 가장 높은 제I군은 제II군, III군, IV군과 비교했을 때 통계학적 유의차를 나타냈고(p<0.05), I군>II군>III군>IV군 순으로 침투도가 감소하였으나 통계학적 유의차는 없었다(p>0.05). 이상의 결과를 종합하여 볼 때, 열구가 착색된 경우나 초기우식이 있는 경우에도 치면열구전색이 가능하나 임상적으로 탐침을 통해 감지할 수 있을 정도의 법랑질 우식 열구는 치면열구전색을 시행할 경우 이차우식과 같은 부작용을 초래할 수 있음을 예상할 수 있다.

Keywords

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