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NTIS 바로가기大韓齒科保存學會誌 = Journal of Korean Academy of Operative Dentistry, v.36 no.6, 2011년, pp.465 - 476
송민주 (연세대학교 치과대학 보존학교실, 현미경센터) , 김의성 (연세대학교 치과대학 보존학교실, 현미경센터)
In current endodontic practice, introduction of operating microscope, ultrasonic instruments, and microinstruments has induced a big change in the field of surgical retreatment. In this study, we aimed to offer key steps of endodontic microsurgery procedure compared with traditional root-end surgery...
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핵심어 | 질문 | 논문에서 추출한 답변 |
---|---|---|
치근단 충전의 목적은? | 치근단 충전의 목적은 치근단 부위를 가능한 완전히 밀봉하여 세균이나 세균의 부산물이 근관내에 잔존하거나 근관을 다시 오염시키는 것을 방지하는 것이다. 이전의 몇몇 저자들은 치근단 수술 시, 치근단 충전 유무와 상관없이 치유가 일어난다고 보고하였다. | |
치근단 충전의 목적에 부합하기 위한 이상적인 충전재는? | 치근단 충전의 목적에 부합하기 위한 이상적인 충전재는근관벽에 결합하여 경화 후에도 체적 안정성을 가지고 있고, 체액과 접촉시 용해되거나 부식되지 않아야 한다. 그리고 최소한 정균(bacteriostatic)작용을 가져야 하고, 살균(bactericidal)작용을 가지는 것이 좋다. 병소가 치유되는과정에서 골재생이 일어나는 것이 중요하기 때문에 백악질형성을 촉진하고 세균과 세균 부산물에 방어막 역할을 할수 있어야 한다. 무엇보다 독성이 없고, 뛰어난 봉쇄효과가가장 중요한 요건이라 할 수 있다. | |
치근단 역충전 재료인 ZOE 계열 재료(IRM, Super EBA), Glass ionomer cement, composite resin, Compomer (Geristore), MTA의 각기 장단점은? | ZOE 계열 재료(IRM, Super EBA), Glass ionomer cement, composite resin, Compomer (Geristore), MTA 등 많은 재료들이 치근단 역충전 재료로 소개되어왔으며, 각기 장단점을 가지고 있다. MTA와 Super EBA, IRM, 아말감의 효과를 비교한 연구에서 MTA의 우수한 밀폐 효과 및 생체친화성이 입증되었으며, 백악질의 재생도일부 관찰되었다.14,15 이러한 특성 때문에 MTA가 최근에는가장 널리 사용되나, 조작성이 좋지 않은 단점이 아직 남아있으며 이러한 단점을 극복하기 위해 다양한 형태의 MTA제재들이 개발되었거나 개발 중에 있다. Super EBA, IRM, MTA를 이용한 최근의 임상연구에서 Super EBA와MTA를 역충전재로 사용하였을 때에는 성공률에 있어 통계적 유의차는 없었으나 IRM을 역충전재로 사용하였을 경우다른 두 재료에 비해 성공률이 통계학적으로 유의하게 감소된다는 보고가 있다.16,17 |
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