Journal of the korean academy of Pediatric Dentistry (대한소아치과학회지)

Korean Academy of Pediatric Dentistry (대한소아치과학회)
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Microleakage Assessment of a Pozzolan Cement-based Mineral Trioxide Aggregate Root Canal Sealer

포졸란 시멘트를 기반으로 하는 근관전색제의 치근단부 미세누출 평가

  • Kim, Mijun (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, Howon (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Lee, Juhyun (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University) ;
  • Seo, Hyunwoo (Department of Pediatric Dentistry, Oral Science Research Center, College of Dentistry, Gangneung-Wonju National University)
  • 김미준 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 박호원 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 이주현 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소) ;
  • 서현우 (강릉원주대학교 치과대학 소아치과학교실 및 구강과학연구소)
  • Received : 2016.03.09
  • Accepted : 2016.05.25
  • Published : 2017.02.28
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Abstract

This study aimed to assess microleakage of Endoseal MTA when it is used as a root canal sealer and a root canal filling material compared with conventional endodontic treatment materials Forty-two mature human permanent teeth with a single root canal were divided randomly into three experimental groups (n = 10) and two control groups (n = 6). Group A was obturated with AH $plus^{(R)}$ and gutta-percha (GP). Group E1 was obturated with Endoseal MTA and GP. Group E2 was obturated with Endoseal MTA only. The positive control group was obturated with GP only and the negative control group was obturated in the same way as the experimental groups. The samples were kept in saline solution for 24 hours and were immersed in 0.2% rhodamine B dye solution for 24 hours. Then the samples were split longitudinally and the micoleakage was assessed under a stereomicroscope. Complete microleakage was detected in all positive control group samples, whereas no microleakage was detected in the negative control group. There was no statistically significant difference between the experimental groups in the Kruskal-Wallis test. These results suggest that Endoseal MTA has potential use as a root canal sealer and a root canal filling material.

본 연구는 포졸란 시멘트를 기반으로 하는 근관전색제인 Endoseal MTA (Maruchi, Wonju, Korea)를 근관전색제와 근관충전제로 사용하였을 때 나타나는 치근단부 미세누출을 기존의 근관전색제인 AH $Plus^{(R)}$ (Dentsply DeTrey, Konstanz, Germany)와 비교하여 평가하고자 하였다. 만곡되지 않은 영구 전치를 3개의 실험군(A군, E1군, E2군)으로 나누고 A군은 AH $Plus^{(R)}$와 gutta-percha (GP), E1군 은 Endoseal MTA와 GP, E2군은 Endoseal MTA 단독으로 충전하였다. 충전이 완료된 치아는 완전한 경화를 위해 24시간동안 멸균 증류수에 보관하였고 염색액 누출을 위해 치근단 부위를 0.2% 로다민 B 염색 용액에 24시간 동안 노출시켰다. 입체 현미경을 이용하여 미세누출 정도를 평가하였으며 3개의 실험군 사이에 유의한 차이가 관찰되지 않았다. 결론적으로 Endoseal MTA는 GP의 사용에 관계 없이 AH $Plus^{(R)}$와 유사한 밀폐력을 보였으며 이러한 결과는 Endoseal MTA의 근관전색제 및 근관 충전제로써 유용한 사용에 대한 가능성을 제시한다.

Keywords

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