[논문]근관 충전용 MTA의 밀폐 효과와 작업 시간 평가

김효진; 김영진; 남순현; 권태엽; 김현정

doi:10.5933/jkapd.2016.43.2.129

근관 충전용 MTA의 밀폐 효과와 작업 시간 평가
Evaluation of Sealing Effect and Working Time of Root Canal Filling MTA Materials 원문보기

大韓小兒齒科學會誌 = Journal of the Korean academy of pediatric dentistry, v.43 no.2, 2016년, pp.129 - 136

김효진 (경북대학교 치의학전문대학원 소아치과학교실) , 김영진 (경북대학교 치의학전문대학원 소아치과학교실) , 남순현 (경북대학교 치의학전문대학원 소아치과학교실) , 권태엽 (경북대학교 치의학전문대학원 소아치과학교실) , 김현정 (경북대학교 치의학전문대학원 소아치과학교실)

초록
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본 연구의 목적은 근관 충전재로서 MTA(Endoseal, Endoseal MTA)의 밀폐 효과와 효율을 평가하는 것이다. 총 106개의 발거된 단근치가 사용되었으며, 충전된 실러에 따라 AH군(AH-26), PR군(ProRoot MTA), ES군(Endoseal), EM군(Endoseal MTA)으로 나누어졌고, 모든 충전시 소요 시간이 측정되었다. 그 군들은 다시 A 하위군, B 하위군으로 나누어 근관벽과의 밀폐성과 상아세관내 실러의 침투도를 각각 평가하였다. 결과는 근관 충전용 MTA는 AH-26에 비해 근관벽과의 밀폐성과 상아세관 침투도는 떨어졌으며, ProRoot MTA와 비교시 근관벽과의 밀폐성은 차이가 없었지만, 상아세관 침투도는 높았다. 작업 시간은 근관 충전용 MTA가 ProRoot MTA와 AH-26에 비해 짧았다. 결론적으로 근관 충전용 MTA는 레진계 실러보다 근관 밀폐 효과는 떨어지지만 MTA가 필요한 근관 충전시 효과적인 대안이 될 수 있다.

Abstract ▼ AI-Helper

The purpose of this study is to examine the sealing effect and efficiency of root canal filling MTA (Endoseal, Endoseal MTA). A total of 106 extracted single rooted teeth were used and classified with group AH (AH-26), group PR (ProRoot MTA), group ES (Endoseal) and group EM (Endoseal MTA) depending on filled sealers. Time was measured in each group when sealers were filled. The groups were divided into subgroup A and subgroup B. The sealing of root canal walls and penetration of sealer in the dentinal tubule were evaluated, respectively. According to the results, the sealing of root canal walls and dentinal tubule penetration of root canal filling MTA were inferior to AH-26 (p 0.05), but dentinal tubule penetration was high (p < 0.05). Working time was shorter in root canal filling MTA than ProRoot MTA and AH-26 (p < 0.05). In conclusion, root canal filling MTA has lower root canal sealing effect than resin-based sealer, however, when in MTA needed root canal filling, it could be an effective alternative.

주제어

AI 본문요약
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가설 설정

This study evaluated whether MTA can be used as a root canal filling material. In this in vitro study, the MTA groups took less time than AH-26, both sealing of the root canal walls and penetration within the dentinal tubules were inferior with MTA.

제안 방법

In the negative controls, the entire outer surfaces of the teeth, including the root tip, were covered with two layers of nail varnish. In the experimental group, which comprised 60 samples, 15 from each group, the outer surfaces of the teeth except a 1 mm region at the root tip were coated with two layers of nail varnish and stored at room temperature for 24 hours. Then, after confirming that the nail varnish had hardened, they were immersed in 1% methylene blue solution for 72 hours.
Therefore, this study evaluated the suitability of MTA as root canal filler by comparing the sealing of root canal walls and penetration into the dentinal tubule of various MTAs (ProRoot MTA, Endoseal, and Endoseal MTA) with a proven epoxy resin-based sealer (AH-26).

대상 데이터

The study used 106 single-root teeth kept in physiological saline after extraction. Organic debris on the tooth surface was removed by immersion in 1% NaOCl solution for 4 days.

데이터처리

The data were analyzed using one-way analysis of variance (ANOVA) and Dunnett’s T3 post hoc test.

성능/효과

All of the differences were significant (p < 0.05) and the time differences between groups EM and ES and groups PR and GP were particularly large.

후속연구

Clinically, however, it is only possible to check the seal of the root canal using periapical radiographs, which are not precise enough to evaluate micro-leakage and can observe only two-dimensional filling. Consequently, more research is needed to check if these MTAs are suitable for filling root canals.

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