Development of Root Perforation Filling Material using Demineralized Dentin Paste

Choi,  Yong-Hun; Bae,  Ji-Hyun; Park,  Ji-Hoon; Kim,  Young-Kyun; Yun,  Pil-Young; Hwang,  Ji-Yeon; Um,  In-Woong; Lee,  Chong-Heon

J Korean Dent Assoc > Volume 50(9); 2012 > Article

The Journal of The Korean Dental Association 2012;50(9):574-585.
Published online September 30, 2012.

치아들을 탈회동결건조처리하여 제작한 치근천공부 충전재 개발 I: 예비실험연구

최용훈¹, 배지현², 박지훈³, 김영균⁴, 윤필영⁵, 황지연⁶, 엄인웅⁷, 이종헌⁸

^¹분당서울대학교병원 치과 보존과
^²분당서울대학교병원 치과 보존과
^³분당서울대학교병원 치과 보존과
^⁴분당서울대학교병원 구강악안면외과
^⁵분당서울대학교병원 구강악안면외과
^⁶분당서울대학교병원 의생명연구원 전임상실험센터
^⁷한국치아은행 연구소
^⁸단국대학교 치과대학 구강병리학교실

Development of Root Perforation Filling Material using Demineralized Dentin Paste

Yong-Hun Choi¹, Ji-Hyun Bae², Ji-Hoon Park³, Young-Kyun Kim⁴, Pil-Young Yun⁵, Ji-Yeon Hwang⁶, In-Woong Um⁷, Chong-Heon Lee⁸

¹Department of Conservative Dentistry, Section of Dentistry, Seoul National University Bundang Hospital
²Department of Conservative Dentistry, Section of Dentistry, Seoul National University Bundang Hospital
³Department of Conservative Dentistry, Section of Dentistry, Seoul National University Bundang Hospital
⁴Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital
⁵Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital
⁶Preclinical Research Center, Biomedical Research Institute, Seoul National University Bundang Hospital
⁷Korea Tooth Bank, R&D Institute
⁸Department of Oral Pathology, College of Dentistry, Dankook University

Abstract

Purpose
: This study was performed to evaluate the healing response around the root perforation restorative material. Materials and Methods : Four beagle dogs were used for experimental study. Endodontic treatment was performed at four maxillary premolars and artificial perforation was formed at furcation area of pulp chamber. Canal was filled with gutta percha cone and the perforation was sealed with MTA at group 1. At group 2, canal was filled and the perforation was sealed with dentin paste. Tooth paste was fabricated using extracted human teeth. Histologic examination of furcation area was performed 2, 4, 8 and 12 weeks after experiment. Results : New trabecular bone formation was observed around the MTA and tooth paste. Lamellar bone was observed as time is over. There were no inflammatory reaction in both groups. Conclusion : There is a possibility which endodontic filling material can be developed using extracted teeth.

Key Words: endodontic filling material;dentin paste;perforation;