Tanomaru-Filho Mário, Luis Marcone R, Leonardo Mario R, Tanomaru Juliane M G, Silva Léa A B
Department of Endodontics, Araraquara School of Dentistry, State University of São Paulo-UNESP, Brazil.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Jul;102(1):127-32. doi: 10.1016/j.tripleo.2005.09.008. Epub 2006 Apr 21.
The objective of this study was to evaluate periapical repair following retrograde filling using different root-end filling materials.
After induction of periapical lesions, 48 root canals from dog teeth were partially filled. Endodontic surgery was performed and 3 different materials were used for root-end filling: Sealer 26, Sealapex plus zinc oxide, or mineral trioxide aggregate (MTA). No additional procedures were performed in the control group after partial filling of the root canal. After 180 days, the animals were killed, the maxillas and mandibles were removed, and specimens were submitted for histologic processing.
Histopathologic analysis revealed similar periapical repair for the groups in which Sealer 26, Sealapex plus zinc oxide, and MTA were used (P > .05). The control group showed unsatisfactory periapical repair (P < .05).
There was no difference in periapical tissue healing after retrograde filling with the tested materials, which indicates that these 3 root-end filling materials are equally useful.
本研究的目的是评估使用不同根充材料进行倒充填后根尖周的修复情况。
诱导根尖周病变后，对48颗犬牙的根管进行部分充填。进行牙髓手术，并使用3种不同材料进行根充：Sealer 26、Sealapex加氧化锌或三氧化矿物凝聚体（MTA）。根管部分充填后，对照组未进行其他操作。180天后，处死动物，取出上颌骨和下颌骨，将标本送去进行组织学处理。
组织病理学分析显示，使用Sealer 26、Sealapex加氧化锌和MTA的组根尖周修复情况相似（P>.05）。对照组根尖周修复情况不理想（P<.05）。
使用受试材料进行倒充填后，根尖周组织愈合无差异，这表明这3种根充材料同样有效。
