2Arcangelo C,Varvara G,De Fazio P. Root canal treatment in mandibular canines with two roots:a report of two cases[J].International Endodontic Journal,2001,(04):331-334.
5Pecora JD,Sousa Neto MD,Saquy PC. Intemal anatomy direction and number of roots and size of human mandibular canines[J].Brazilian Dental Journal,1993,(01):53-57.
6Oana Cella Andrei,Ruxandra Margarit,Irina Maria Gheorhiu. Endodntic treatment of a mamdibular canine with two roots[J].Romanian Journal of Morphology and Embryology,2011,(03):923-926.
7Kartal N, Yanikoglu FC. Root canal morphology of mandibular incisors[J]. J Endod, 1992, 18(11):562-564.
8De Moor RJ, Calberson FL. Root canal treatment in a mandibular second premolar with three root canals[J]. J Endod, 2005, 31 (4) : 310-313.
9Vertucci FJ. Root canal anatomy of the human permanent teeth [J]. Oral Stag Oral Med Oral Pathol, 1984, 58(5):589-599.
10Mauger MJ, Schindler WG, Walker WA 3rd. An evaluation of canal morphology at different levels of root resection in mandibular incisors[J]. J Endod, 1998, 24(9):607-609.