Faculdade de Medicina Dentária, Universidade de Lisboa, Lisboa, Portugal.
Grupo de Investigação em Bioquimica e Biologia Oral, Unidade de Investigação em Ciências Orais e Biomédicas (UICOB), Faculdade de Medicina Dentária, Universidade de Lisboa, Lisboa, Portugal.
Int Endod J. 2022 Jan;55(1):30-37. doi: 10.1111/iej.13651. Epub 2021 Nov 5.
To describe the prevalence of periapical lesions, root canal treatments and coronal restorations on teeth adjacent to either implant- or natural tooth-supported crowns using cone-beam computed tomography (CBCT) assessment compared to nonadjacent teeth.
A total of 1249 CBCT volumes were screened by five pre-calibrated observers in 11 health centres. A step-by-step screening protocol was implemented and reviewed every 3 months, and mandatory setting characteristics were established for all CBCT scans using dedicated visualization software. Intra- and inter-rater reliability tests were conducted. The prevalence of periapical lesions, root canal treatments and coronal restorations was recorded on both teeth adjacent and nonadjacent to implant- (predictor 1) or natural tooth-supported crowns (predictor 2). A binary logistic model (Generalizing Estimating Equations test) was used to verify whether the prevalence of periapical lesion, root canal filling and the tooth restorative status are altered when the assessed tooth is adjacent or not to an implant-supported crown (predictor 1); or to a natural tooth-supported crown (predictor 2). Odds ratio and confidence intervals for the dependent variables at both predictors were obtained. The significance level was set at .05.
A global sample of 22 899 teeth was included. Compared to nonadjacent teeth, the prevalence of periapical lesion, root canals treatments and restorative procedures when adjacent to implant-supported crowns was 10.7%, 19.6% and 22.9% higher, respectively, and when adjacent to tooth-supported crowns was 19.3%, 35.6% and 37.4% higher respectively. These results were significant only for variables root canal filling and coronal restoration (p < .0001). Odds ratio to present root canal treatment is 2.57 times higher (CI 1.95-3.39, p = .0001) when the tooth is adjacent to implant-supported crown and 4.39 times (CI 3.49-5.53, p = .0001) when adjacent to tooth-supported crown, whilst for restorative procedure, the odds are, respectively, 1.63 (CI 1.29-2.06, p = .0001) and 2.30 (CI 1.92-2.76, p = .0001).
Teeth adjacent to both implant- and natural tooth-supported crowns were associated with a higher frequency of root canal filling and coronal restorations.
使用锥形束计算机断层扫描 (CBCT) 评估，与非相邻牙齿相比，描述种植体或天然牙支持的牙冠邻接牙齿的根尖病变、根管治疗和冠部修复的患病率。
由五名经过预校准的观察者在 11 个医疗中心筛查了总共 1249 个 CBCT 容积。实施了逐步筛查方案，并每 3 个月进行一次审查，并使用专用可视化软件为所有 CBCT 扫描建立强制性设置特征。进行了内部和外部评分者可靠性测试。记录了种植体支持的牙冠（预测因子 1）或天然牙支持的牙冠（预测因子 2）邻接或不邻接的牙齿的根尖病变、根管治疗和冠部修复的患病率。使用二元逻辑模型（广义估计方程检验）验证当评估的牙齿与种植体支持的牙冠（预测因子 1）相邻或与天然牙支持的牙冠（预测因子 2）相邻时，根尖病变、根管填充和牙齿修复状态的患病率是否发生变化。获得了两个预测因子的依赖变量的优势比和置信区间。显著性水平设置为.05。
纳入了 22899 颗牙齿的总体样本。与非相邻牙齿相比，当与种植体支持的牙冠相邻时，根尖病变、根管治疗和修复程序的患病率分别高 10.7%、19.6%和 22.9%，当与天然牙支持的牙冠相邻时，患病率分别高 19.3%、35.6%和 37.4%。这些结果仅在根管治疗和冠部修复变量上具有统计学意义（p<.0001）。当牙齿与种植体支持的牙冠相邻时，进行根管治疗的优势比为 2.57 倍（95%CI 1.95-3.39，p=.0001），与天然牙支持的牙冠相邻时，为 4.39 倍（95%CI 3.49-5.53，p=.0001），而对于修复程序，比值分别为 1.63（95%CI 1.29-2.06，p=.0001）和 1.73（95%CI 1.29-2.33，p=.0001）。
与种植体和天然牙支持的牙冠相邻的牙齿与根管填充和冠部修复的频率更高相关。
