1Petrovic V, Karadzic B, Ivanovic V, et al. Links One-year control examination of therapy of chronic apical periodontitis treated by single visit method [ J ]. Stomatol Glas Srb, 1990,37 (2) : 183-189
2Peters LB, Wesselink PR. Priapical healing of endodontically treated teeth In one and two visits obturated in the presence or absence of detectable microorganisms [ J ]. Int Endod J ,2002,35 ( 8 ) :660-667
3Yeh S J, Lin YT, Lu SY. Related Articles, links A clinical study of endodontic flare - ups [ J ]. Changgeng yi Xue Za Zhi, 1994,17 (2) : 138-143
4Kane AW,Toure B, Sarr M, et al. Pain in intracanal treatment. A cinical study apropos of 150 cases [ J]. Odontostomatol Trop, 2000,23 (90) : 5-10
5Schwarz T, Baethg C, Stecher T, et al. Dentification of second canals in the mesiobuccal root of maxillary first and second molars using magnifying loupes or an operating microscope [ J ]. Aust Endod J, 2002,28 ( 2 ) :57-60