1Imfeled TN.Prevalence and quality of endodontic treatment in elderly urban population of Switzerland[J].J Endod,1991,17(10):604-607
2Boucher Y.Matossian L,Rilliard F,et al.Radiographic evaluation of the prevalence and technical quality of root canal treatment in a French subpopulation[J].Int Endod J,2002,35(3):229-238
3范兵彭彬.根管治疗[M].武汉:湖北科学技术出版社,2004:37
4Khabbaz MG,serefoglou MH.The application of the buccal object rule for the determination of calcified root canals[J].Int Endod J,1996,29(4):284-287
5Rocca JP,Jasmin JR.DuprezJP.Removal of calcified attached denticle with a pulsed dye laser.A case report[J].Oral Surg Oral Med Oral Radiol Endod,1994,77(3):281-284
6Stewart GG.Gaining access to calcified canals[J].Oral Surg Oral Med Radiol Endod,1995,79(6):764-768
