Department of Periodontology, Center for Dental, Oral, and Maxillofacial Medicine (Carolinum), Johann Wolfgang Goethe-University Frankfurt am Main, Frankfurt am Main, Germany.
J Clin Periodontol. 2011 Mar;38(3):269-75. doi: 10.1111/j.1600-051X.2010.01657.x. Epub 2010 Dec 6.
The purpose of this study was to test the hypothesis that teeth that are adequately endodontically treated develop more periodontal bone loss than their contra-lateral counterpart without root canal filling (RCF) in relation to the restoration margin (RM) in periodontitis patients.
In 53 periodontitis patients (26 females; 34-73 years of age), 66 pairs of radiographs were sampled. Each pair of radiographs depicted one pair of contra-lateral teeth: one with and one without RCF. All radiographs were digitized. Using a PC program the linear distances cemento-enamel junction (CEJ) or RM to the alveolar crest (AC) and CEJ/RM to bony defect (BD) were measured at the site of most pronounced bone loss. Comparisons were made according to RCF, RM, site (mesial/distal), jaw and tooth type (anterior/posterior).
The study showed statistically significant differences for the distance CEJ/RM-BD only for tooth type (anterior: 6.17 ± 3.01 mm, posterior: 5.03 ± 2.59 mm, p=0.044; without RCF: 5.14 ± 2.82 mm, RCF: 5.57 ± 2.70 mm, p=0.159; without RM: 5.67 ± 2.98 mm, RM: 5.16 ± 2.61 mm; p=0.322; mesial: 5.62 ± 2.98 mm, distal: 5.06 ± 2.24 mm; p=0.238; maxilla: 5.55 ± 3.04 mm, mandible: 5.20 ± 2.52 mm; p=0.486).
Teeth with endodontic treatment failed to exhibit more bone loss than endodontically untreated teeth.
本研究旨在检验以下假设，即在牙周炎患者中，相对于修复边缘（RM），经过充分根管治疗的牙齿与未进行根管填充（RCF）的对侧牙齿相比，在 RM 处发生更多牙周骨丧失。
在 53 名牙周炎患者（26 名女性；年龄 34-73 岁）中，共采集了 66 对射线照片。每对射线照片描绘了一对对侧牙齿：一对有 RM 和一对无 RM。所有射线照片均进行了数字化处理。使用 PC 程序，在骨缺损（BD）最明显的骨丧失部位测量釉牙骨质界（CEJ）或 RM 到牙槽嵴（AC）以及 CEJ/RM 到 BD 的线性距离。根据 RCF、RM、部位（近中/远中）、颌骨和牙齿类型（前/后）进行比较。
仅在牙齿类型方面，CEJ/RM-BD 的距离存在统计学显著差异（前牙：6.17 ± 3.01mm，后牙：5.03 ± 2.59mm，p=0.044；无 RCF：5.14 ± 2.82mm，RCF：5.57 ± 2.70mm，p=0.159；无 RM：5.67 ± 2.98mm，RM：5.16 ± 2.61mm，p=0.322；近中：5.62 ± 2.98mm，远中：5.06 ± 2.24mm，p=0.238；上颌：5.55 ± 3.04mm，下颌：5.20 ± 2.52mm，p=0.486）。
经过根管治疗的牙齿并未表现出比未经根管治疗的牙齿更多的骨丧失。
