Kane A W, Seck M T, Sarr M, Faye A, Lo M M
Odontostomatol Trop. 1999 Dec;22(88):26-8.
64 teeth with well-fitting post-retained crown were examined radio graphically and clinically and a number of failures were assessed including the peri-apical condition and the quality of root filling. All the teeth were vital and prosthetic was the only reason of endodontic treatment. Results have shown that 25% of the teeth had areas of radiolucency around the root apices. Various criteria parameters were reviewed for possible correlation to the failures. 15 out of the 16 cases of failures could be related to the endodontic therapy procedures: lack of using a rubber dam during the treatment and an unsatisfactory condensed and sealed root filling. Only one case was related to the deviation of post from the line of canal suggest a lateral perforation. To perform a post-retained crown the quality of endodontics must be considered: the operative procedures should be more controlled and enough time should be observed after root canal therapy to ensure its successful.
对64颗桩核冠修复良好的牙齿进行了影像学和临床检查，并评估了一些失败情况，包括根尖周状况和根管充填质量。所有牙齿均为活髓牙，修复是根管治疗的唯一原因。结果显示，25%的牙齿根尖周围有透射区。对各种标准参数进行了审查，以寻找与失败可能的相关性。16例失败病例中有15例可能与根管治疗程序有关：治疗期间未使用橡皮障，根管充填不密实且密封不佳。只有1例与桩偏离根管方向有关，提示有侧穿。进行桩核冠修复时必须考虑根管治疗的质量：手术操作应更规范，根管治疗后应观察足够长的时间以确保成功。
