Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)
- Volume 34 Issue 2
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- Pages.204-214
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- 2007
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- 1226-8496(pISSN)
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- 2288-3819(eISSN)
COMPARISON OF MICROLEAKAGE IN SEALANT REPAIRED WITH DIFFERENT SURFACE TREATMENT
파손된 치면열구전색제의 수리 방법에 따른 미세누출 비교
- Kang, Myung-Bong (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Hyun, Hong-Keun (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Kim, Young-Jae (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Kim, Jung-Wook (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Jang, Ki-Taek (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Lee, Sang-Hoon (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Hahn, Se-Hyun (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University) ;
- Kim, Chong-Chul (Department of Pediatric Dentistry, College of Dentistry and Dental Research Institute, Seoul National University)
- 강명봉 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 현홍근 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 김영재 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 김정욱 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 장기택 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 이상훈 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 한세현 (서울대학교 치과대학 소아치과학교실 및 치학연구소) ;
- 김종철 (서울대학교 치과대학 소아치과학교실 및 치학연구소)
- Published : 2007.05.31
Abstract
The aim of this study was to investigate whether differences in surface treatment prior to repair influenced the seal of a resin fissure sealant placed on the occlusal surfaces of permanent molar teeth. One hundred and twenty extracted human molars were selected and a light curing sealant was placed on their occlusal surface following cleaning by prophylaxis and acid etching. The teeth were deliberately damaged, and then stored in artificial saliva for four weeks. Sixty teeth with the desired morphology of sealant failure were randomly divided into four groups where one group was treated with only etching agent, another by only air-abrasion, another by applying an etching agent followed by a bonding agent, and the last by air-abrasion followed by a bonding agent each. After sealant application, the samples were thermocycled and the degree of microleakage was determined. The results were as follows : 1. In the sealant/sealant interface group 2(0.22), 4(0.23) using air-abrasion showed a significantly lower microleakage score than group 1(0.38), 3(0.35) using an etching agent(p<0.05). There were no statistically significant differences(p>0.05) between groups 1, 2 and groups 3, 4. 2. In the sealant/tooth interface, group 3(0.20), 4(0.20) which used a bonding agent showed a significantly lower microleakage score than group 1(0.35), 2(0.40) (p<0.05). There were no statistically significant differences(p>0.05) between groups 1, 3 and groups 2, 4. 3. In SEM examination, while sealant surfaces treated with etching did not result in highly rough surfaces, those treated with air-abrasion did show rough surfaces.
치면열구전색은 수 십년간 교합면 우식의 예방에 가장 효과적인 방법 중 한가지로 알려져 왔다. 하지만 치면열구전색제의 마모와 파절 때문에 치면열구전색제의 재시술 또는 수리를 필요로 하게 되었다. 본 연구의 목적은 파손된 치면열구전색제를 수리할 때 치질과 잔여 전색제의 표면처리 방법에 따른 미세누출 차이를 알아보고자 하는 것이다. 120개의 영구 대구치에 치면열구전색제를 적용하고 인위적인 파손을 만든 뒤 인공타액에 4주동안 보관하였다. 4주 후 근심 또는 원심의 치면열구전색제가 완전히 파손 양상을 나타내는 치아 60개를 선택하여 각각 15개씩 4개 군으로 나누어 실험에 사용하였다. 각 군을 산부식만 시행한 경우(1군), air-abrasion만 시행한 경우(2군), 산부식 후 결합제를 적용한 경우(3군), air-abrasion 후 결합제를 적용한 경우(4군)로 나눠 각각의 치아를 표면처리한 후 치면열구전색제를 도포하였다. 고온