100%로 병소를 확인 할 수 있는 의도적 재식술에서 MTA Filling은 성공적일 수 밖에 없습니다. 하지만 눈에 보이지 않은 근관충전 케이스에서 제거가 어려운 MTA필링은? 근첨밀폐술에 관한 MTA 저널은 찾아 보기 쉽지만 토탈필리에 대한 MTA저널은 거의 없습니다. MTA 토탈필링이 학계의 정설이 아니라는 뜻입니다.
Mineral trioxide aggregate as a root canal filling material in reimplanted teeth. Microscopic analysis in monkeys.
- 1Department of Surgery and Integrated Clinic, Dental School of Araçatuba - UNESP, Araçatuba, São Paulo, Brazil. panzarin@foa.unesp.br
Abstract
This study analyzed mineral trioxide aggregate (MTA) as a root canal filling material for the immediate reimplantation of monkey teeth. Four adult capuchin monkeys Cebus apella were used, which had their maxillary and mandibular lateral incisors on both sides extracted and reimplanted after 15 min. During the extra-alveolar period, the teeth were kept in saline solution and after reimplantation retention was performed with a stainless steel wire and composite resin for 14 days. After 7 days, the reimplanted teeth were submitted to endodontic treatment with biomechanics up to file n. 30 and irrigation with a saturated solution of calcium hydroxide [Ca(OH)(2)], and then divided into two study groups: group I - root canal filled with a Ca(OH)(2) paste, and group II - root canal filled with MTA. Radiographic follow up was performed at 30, 60 and 90 days postoperatively, and after 180 days the animals were killed and specimens were processed for histomorphological analysis. The results revealed that most specimens of both groups presented organized periodontal ligament with no inflammation. The resorptions observed were surface resorptions and were repaired by cementum. Both MTA and Ca(OH)(2) were good root canal filling materials for immediately reimplanted teeth, providing good repair and also allowing biological sealing of some lateral canals. There was no significant difference between the study groups (alpha = 29.60%).
