Leonardo M R, da Silva L A, Almeida W A, Utrilla L S
Department of Endodontics, School of Dentistry, Araraquara, Paulista State University, Brazil.
Endod Dent Traumatol. 1999 Feb;15(1):28-32. doi: 10.1111/j.1600-9657.1999.tb00745.x.
The objective of the present study was to evaluate two different types of root canal sealers: AH Plus (an epoxy resin-based sealer) and Fill Canal (a zinc oxide-eugenol based sealer). A total of 34 root canals with vital pulp from dogs' premolars were used. After instrumentation, the root canals were filled with gutta-percha and AH Plus or gutta-percha and Fill Canal sealers using a classical technique of lateral condensation. After histological processing, the sections were stained with hematoxylineosin or Mallory's trichrome stain. Inflammatory cells or areas of necrosis were not associated with AH Plus. Hard tissue formation apically to the material was observed in 14 specimens. The Fill Canal sealer presented an inflammatory response of moderate intensity in the periapical region, mainly adjacent to the material.
AH Plus（一种环氧树脂基封闭剂）和Fill Canal（一种氧化锌丁香酚基封闭剂）。总共使用了34颗来自犬前磨牙的有活力牙髓的根管。根管预备后，采用传统的侧向加压技术，用牙胶尖和AH Plus或牙胶尖和Fill Canal封闭剂进行根管充填。经过组织学处理后，切片用苏木精-伊红或马洛里三色染色。AH Plus未发现炎性细胞或坏死区域。在14个标本中观察到材料根尖处有硬组织形成。Fill Canal封闭剂在根尖周区域呈现中等强度的炎症反应，主要与材料相邻。
