2Barhel CR, Levin LG, Reisner HM, et al. TNF- arelease in monocytes after exposure to calcium hydroxide treated Escherichia coli LPS. Int Edod J, 1997,30(3) : 155 ～ 159.
3Alan N, David F, Harold H,et al. Changes in root dentinover a 4- week period following root canal dressing with calcium hydroxide. J Endod, 1993,19:303 ～ 306.
4Takahashi G, Hosoya N, Takizawa H, et al. Periapical environment after applying Ca(OH)2 into root canal in vitro. J Dent Res, 1996,75:52.
