Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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THE EFFECT OF CPP-ACP PRE-TREATMENT ON BOND STRENGTH OF A SEALANT

CPP-ACP 적용이 치면열구전색제의 결합강도에 미치는 영향

  • Kong, Eun-Kyung (Department of Pediatric Dentistry, The Graduate School of Clinical Dentistry, Ewha Womans University) ;
  • Jung, Sang-Hyuk (Department of Preventive Medicine, School of medicine, Ewha Womans University) ;
  • Mah, Yon-Joo (Department of Pediatric Dentistry, The Graduate School of Clinical Dentistry, Ewha Womans University) ;
  • Ahn, Byung-Duk (Department of Pediatric Dentistry, The Graduate School of Clinical Dentistry, Ewha Womans University) ;
  • Jung, Young-Jung (Department of Pediatric Dentistry, The Graduate School of Clinical Dentistry, Ewha Womans University)
  • 공은경 (이화여자대학교 임상치의학대학원 임상치의학과 임상소아치과학) ;
  • 정상혁 (이화여자대학교 의학전문대학원 예방의학교실) ;
  • 마연주 (이화여자대학교 임상치의학대학원 임상치의학과 임상소아치과학) ;
  • 안병덕 (이화여자대학교 임상치의학대학원 임상치의학과 임상소아치과학) ;
  • 정영정 (이화여자대학교 임상치의학대학원 임상치의학과 임상소아치과학)
  • Received : 2010.08.09
  • Accepted : 2010.10.25
  • Published : 2010.11.30
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Abstract

Recently the effect of CPP-ACP on early caries remineralization and prevention has hashbeen extensively researched. However, there has been a lack of research on micro-shear bond strength of a sealant applied on a CPP-ACP treated surface. Therefore, the purpose of this study was to evaluate the effect of CPP-ACP on the micro-shear bond strength of a sealant bonded with 3 different bonding systems. From the sound human 3rd molars, the 150 specimens were prepared and randomly assigned to six groups. Group I: Immersion in artificial saliva for 2 weeks + 35% phosphoric acid Group II: Immersion in artificial saliva for 2 weeks + 35% phosphoric acid + dentin bonding agent Group III: Immersion in artificial saliva for 2 weeks + self-etching adhesive Group IV: CPP-ACP application for 2 weeks + 35% phosphoric acid Group V: CPP-ACP application for 2 weeks + 35% phosphoric acid + dentin bonding agent Group VI: CPP-ACP application for 2 weeks + self-etching adhesive Sealant was applied and the micro-shear bond strength was measured. From the result of this study, it can be assumed that the CPP-ACP pretreatment can weaken the bond strength of a sealant if the enamel surface is conditioned with self-etch adhesive.

최근 CPP-ACP의 초기 우식증의 재광화 및 예방 효과에 대한 연구가 많이 진행되고 있다. 그러나, CPP-ACP 적용으로 인한 법랑질 산부식 저항성 증가가 치면열구전색제 접착에 미치는 영향에 대해서는 연구가 부족한 실정이다. 본 연구에서는 CPP-ACP의 치면 도포 여부와 치면열구전색제의 접착 방법의 차이가 법랑질과 치면열구전색제의 결합력에 미치는 영향에 대하여 미세전단결합강도 측정법으로 알아보고자 하였다. 건전한 제3대구치를 사용하여 150개의 시편을 제작하였으며, 다음과 같이 6군으로 나누었다. I군: 인공타액에 2주 보관 후 35% 인산 산부식 II군: 인공타액에 2주 보관 후 35% 인산 산부식 + 접착제 III군: 인공타액에 2주 보관 후 자가 부식 접착제 IV군: CPP-ACP 2주 적용 후 35% 인산 산부식 V군: CPP-ACP 2주 적용 후 35% 인산 산부식 + 접착제 VI군: CPP-ACP 2주 적용 후 자가 부식 접착제 6군의 시편에 치면열구전색제 접착 후 미세전단결합강도를 측정하여 다음과 같은 결과를 얻었다. CPP-ACP 적용은 전통적인 산부식 방법으로 치면열구전색제를 접착하는 경우에는 결합강도와 산부식 양상에 영향을 미치지 않으나, 자가 부식 접착제를 사용한 경우에는 치면열구전색제의 결합강도를 약화시켰다.

Keywords

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