Jansson L E, Ehnevid H, Lindskog S F, Blomlöf L B
Department of Peridontology, Public Dental Service at Skanstull, Stockholm County Council, Sweden.
J Periodontol. 1993 Oct;64(10):947-53. doi: 10.1902/jop.1993.64.10.947.
The purpose of the present investigation was to examine the influence of a root canal infection on radiographic attachment. In addition, influence of the quality of the root fillings as well as the size of the periapical radiolucencies were studied. The investigation was conducted as a retrospective study on a consecutive referral population. The periapical conditions in endodontically-involved single-rooted teeth from a selected patient sample were correlated to the periodontal status of the teeth. Teeth with periapical lesions were found to have lost significantly more radiographic attachment, approximately 2 mm. A comparison between pocket depth in teeth with and without periapical pathology consistently showed that periapical pathology was significantly correlated to an increased pocket depth, also after adjusting for differences in radiographic attachment. It was concluded that periodontitis-prone teeth run a significantly higher risk of losing periodontal attachment if a root canal infection is also present and evident as a periapical radiolucency.
本研究的目的是检验根管感染对影像学附着水平的影响。此外，还研究了根管充填质量以及根尖周透射影大小的影响。本研究作为一项对连续转诊人群的回顾性研究开展。从选定的患者样本中选取根管治疗的单根牙的根尖周状况与牙齿的牙周状况相关联。发现有根尖周病变的牙齿在影像学上的附着丧失明显更多，约2毫米。对有和没有根尖周病变的牙齿的牙周袋深度进行比较，结果始终表明，即使在调整了影像学附着水平的差异后，根尖周病变也与牙周袋深度增加显著相关。得出的结论是，如果存在根管感染并表现为根尖周透射影，那么易患牙周炎的牙齿失去牙周附着的风险会显著更高。
