论文部分内容阅读
目的初步探讨分析X线片上表现为锥形根的上颌第二磨牙的根管数目。方法 485例(485颗患牙)临床患者中挑选X线片和偏移X线片确认为锥形根的86颗需要根管治疗的上颌第二磨牙,常规开髓,在根管显微镜下探寻根管数目。结果 86颗患牙中单根管12例,双根管34例,三根管39例,四根管1例,占锥形根总数的13.95%、39.53%、45.35%及1.16%;占患牙总数的2.47%、7.01%、8.04%和0.21%。结论上颌第二磨牙锥形根根管数目存在不同程度的变异给临床根管治疗增加了一定的难度,在临床治疗中要格外注意。
Objective To investigate the number of root canals in maxillary second molars with conical roots on X-ray films. Methods A total of 86 maxillary second molars requiring root canal treatment were selected from 485 patients (485 teeth) who underwent X-ray and offset X-ray films as conical roots. Conventional open pulp was used for exploration under the root canal microscope Root canal number. Results There were 12 single root canal, 34 double root canal, 39 triple root canal and 1 quadruple tube in 86 teeth, accounting for 13.95%, 39.53%, 45.35% and 1.16% of the total number of conical root, respectively 2.47%, 7.01%, 8.04% and 0.21% of the total number of teeth. Conclusion There are some variations in the number of condylar root canals in the maxillary second molar, which adds some difficulty to clinical root canal treatment. Special attention should be paid in clinical treatment.