Alfouzan Khalid, Baskaradoss Jagan Kumar, Geevarghese Amrita, Alzahrani Mohammed, Alhezaimi Khalid
Oral Health Prev Dent. 2016;14(3):241-8. doi: 10.3290/j.ohpd.a35299.
To assess the prevalence of apical periodontitis (AP), as determined by orthopantomograms (OPGs), and its correlation with the quality of root fillings and coronal restorations.
This cross-sectional study evaluated a random sample of 193 patients--112 (58%) females and 81 (42%) males--who presented as new patients at the Division of Endodontics. Digital OPGs were independently examined by two reliability-calibrated endodontists. The total number of teeth present, the location of the root canalfilled teeth, and the presence or absence of AP were recorded for each radiograph. The results were statistically analysed using the chi-square test followed by model building using multiple logistic regression.
A total of 324 endodontically treated teeth from the 193 selected radiographs were analysed. The mean number of teeth per patient was 25.5 ± 4.6, with an average of 1.64 root canal treatments per subject. Radiographically detected AP was associated with 190 (58.6%) root canal-treated teeth. The logistic model shows that the quality of endodontic treatment (adjusted odds ratio [ORa] = 1.82; 95% confidence interval [CI]: 1.40-3.17), status of coronal restoration (ORa = 1.77; 95% CI: 1.20-2.61) and the type of material used for coronal restorations (ORa = 1.39; 95% CI: 1.03-1.87) were significantly related to the periapical health of the teeth.
The quality of endodontic treatment, status of coronal restoration and the type of coronal restorative material were found to be the most important factors influencing the health of periradicular tissue.
通过曲面体层片（OPG）评估根尖周炎（AP）的患病率及其与根管充填质量和冠修复的相关性。
这项横断面研究评估了193例新患者的随机样本，其中女性112例（58%），男性81例（42%），这些患者均在牙髓病科就诊。两名经过可靠性校准的牙髓病医生独立检查数字化OPG。记录每张X线片上的牙齿总数、根管充填牙齿的位置以及AP的有无。结果采用卡方检验进行统计学分析，随后使用多元逻辑回归建立模型。
共分析了193张选定X线片中的324颗经牙髓治疗的牙齿。每位患者的平均牙齿数为25.5±4.6，每位受试者平均进行1.64次根管治疗。X线片检测到的AP与190颗（58.6%）根管治疗后的牙齿有关。逻辑模型显示，牙髓治疗质量（调整优势比[ORa]=1.82；95%置信区间[CI]：1.40 - 3.17）、冠修复状态（ORa = 1.77；95% CI：1.20 - 2.61）和冠修复所用材料类型（ORa = 1.39；95% CI：1.03 - 1.87）与牙齿根尖周健康显著相关。
牙髓治疗质量、冠修复状态和冠修复材料类型是影响根尖周组织健康的最重要因素。
