Özbaş Hakan, Aşcı Selmin, Aydın Yalçın
Faculty of Dentistry, Department of Endodontics, Istanbul University, Istanbul, Turkey.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2011 Jul;112(1):136-42. doi: 10.1016/j.tripleo.2011.01.010. Epub 2011 Mar 31.
The objective of this study was to investigate the prevalence of periapical lesions by evaluating the periapical status and to evaluate the relationship between the technical quality of endodontic treatments and presence of periapical lesions in a Turkish subpopulation.
A total of 11,542 teeth of 438 patients were radiographically evaluated. Presence of endodontic treatment and obturation levels, coronal restorations, and degree of root canal curvature angles were noted. Apical status was assessed by the Periapical Index Scores (PAI). The χ(2) test was used for statistical analysis.
Among all teeth, 179 (1.55%) had endodontic treatment and 189 (1.63%) had periapical lesions. Of 179 endodontically treated teeth, 68 (37.99%) had periapical lesions. The prevalence of periapical lesions was found to be significantly high among underfilled teeth (P < .001). In most underfilled teeth, the presence of severe curvatures was particularly of interest. Prevalence of inadequate coronal restorations was significantly high among the teeth with periapical lesions, whether endodontically treated or not (P < .001).
The findings of the present study indicate that considerable effort should be spent by dental practitioners to improve the technical quality of root canal fillings.
本研究的目的是通过评估根尖周状况来调查根尖周病变的患病率，并评估土耳其亚人群中根管治疗技术质量与根尖周病变存在之间的关系。
对438例患者的11542颗牙齿进行了影像学评估。记录根管治疗和充填水平、冠部修复情况以及根管弯曲角度。通过根尖周指数评分（PAI）评估根尖周状况。采用χ²检验进行统计分析。
在所有牙齿中，179颗（1.55%）接受了根管治疗，189颗（1.63%）有根尖周病变。在179颗接受根管治疗的牙齿中，68颗（37.99%）有根尖周病变。发现欠填牙齿的根尖周病变患病率显著较高（P <.001）。在大多数欠填牙齿中，严重弯曲的存在尤其值得关注。无论是否接受根管治疗，根尖周病变牙齿中冠部修复不足的患病率均显著较高（P <.001）。
本研究结果表明，牙科医生应付出相当大的努力来提高根管充填的技术质量。
