3Martin CL,Luque F,Rodriguez G,et al. A comparative study of apical leakage of endomethasone,top Seal,and roeko seal sealer cements [ J ]. J Endod,2002,28 (6) :423 - 426.
4Dalat DM,Onal B. Apical leakage of a new glass ionomer root canal sealer[ J]. J Endod, 1998,24(3 ) : 161 - 163.
5Barthel CR, Moshonov J, Shuping G, et al. Bacterial leakage versus dye le.akage in obturated root canals[ J]. Int Endod J,1999,32(5) : 370- 375.
6Britto LR, Borer RE, Vertucci FJ ,et al. Comparison of the apical seal obtained by a dual-cure resin based cement or an epoxy resin sealer with or without the use of an acidic primer [ J ]. J Ended, 2002,28 (10) :721 -723.
7Reeh ES,Combe EC. New core and sealer materials for root canal obturation and retrofilling[ J ]. J Endod,2002,28 (7) :520 - 523.
8Kardon BP,Kuttler S,Hardigan P,et al. An in vitro evaluation of the sealing ability of a new root-canal-obturation system [ J]. J Endod, 2003,29(10) :658 - 661.
9Economides N, Liolios E, Kolokuris L, et al. Long-term evaluation of the influence of smear layer removal on the sealing ability of different sealers[ J ]. J Endod, 1999,25 (2) : 123 - 125.
10Haikel Y, Wittenmeyer W, Bateman G,et al. A new method for the quantitative analysis of endodontic microleakage[ J]. J Endod, 1999, 25(3) :172 - 177.