Yeh Chia-Shuo, Wong Wen-Bing, Kan Wayne Yu-Wei, Tu Ming-Gene
Department of Dentistry, China Medical University Hospital, Taichung, Taiwan.
School of Dentistry, College of Medicine, China Medical University, Taichung, Taiwan.
J Dent Sci. 2017 Mar;12(1):95-97. doi: 10.1016/j.jds.2013.02.016. Epub 2013 Apr 19.
Successful root canal treatment relies on correct access cavity preparation, sufficient cleaning, adequate shaping, and complete obturation. Prior to these, location of all existing canals in the tooth plays an important part in the initial treatment procedures. While most teeth have a normal morphology, we should recognize that variations do exist. Normal maxillary second premolars have one or two root canals. Maxillary second premolars are less likely to have three canals. To date, only a few cases of maxillary second premolars with three roots (and three canals) have been reported in the literature. This case presentation reports a 20-year-old female who had three root canals in a maxillary second premolar, which underwent endodontic treatment at a teaching hospital in Taiwan.
成功的根管治疗依赖于正确的开髓洞形预备、充分的清理、合适的根管塑形以及彻底的充填。在此之前，确定牙齿中所有现有根管的位置在初始治疗程序中起着重要作用。虽然大多数牙齿具有正常的形态，但我们应该认识到变异确实存在。正常上颌第二前磨牙有一或两个根管。上颌第二前磨牙有三个根管的可能性较小。迄今为止，文献中仅报道了少数上颌第二前磨牙有三根（及三个根管）的病例。本病例报告了一名20岁女性，其上颌第二前磨牙有三个根管，该患牙在台湾一家教学医院接受了根管治疗。
