Department of prosthodontics, The Affiliated Nantong Stomatological Hospital of Nantong University, Nantong, Jiangsu province, P.R. China.
Department of Orthodontics, The Affiliated Nantong Stomatological Hospital of Nantong University, Nantong, Jiangsu province, P.R. China.
Acta Odontol Scand. 2024 Sep 12;83:493-499. doi: 10.2340/aos.v83.41226.
To investigate the correlation between the marginal bone height of implants in the posterior maxilla of patients with periodontal disease and the inclination of cusp, providing a theoretical basis for the occlusal design of implant restorations in such patients. Methods: A total of 80 patients with periodontal disease who underwent implant restoration in the posterior maxilla (55 men and 25 women; mean age 56.66 ± 12.70 years) were selected, with a total of 80 implant restorations (one implant restoration per patient). In addition to recording the main research factor of the inclination of cusp, general patient information, implant characteristics and restoration characteristics were taken, and retrospective analysis of the case data and imaging data of the 80 patients from over 3 years was conducted. Cone beam computed tomography was performed preoperatively and 3 years after implant loading to measure and calculate the marginal bone height of the implants using the One Volume Viewer software. Correlation analysis was performed to determine the relationship between the inclination of the cusp and marginal bone height. Results: There was a positive correlation between the inclination of cusp and the marginal bone height of the implants, with a correlation coefficient of 0.661 (p < 0.001); the diameter of the implants, implant type and restoration type were negatively correlated with the marginal bone height of the implants, with correlation coefficients of -0.364 (p = 0.001), -0.232 (p = 0.038) and -0.298 (p = 0.007), respectively. Conclusion: When designing the occlusion of implant restorations in the posterior maxilla of patients with periodontal disease, it is advisable to appropriately reduce the restoration's inclination of cusp.
探讨牙周病患者上颌后牙种植体边缘骨高度与牙尖倾斜度的相关性，为该类患者种植修复的咬合设计提供理论依据。方法：选取 80 例行上颌后牙种植修复的牙周病患者（男 55 例，女 25 例；平均年龄 56.66±12.70 岁）作为研究对象，共 80 个种植体修复体（每位患者 1 个种植体修复体）。除记录牙尖倾斜度的主要研究因素外，还记录了一般患者信息、种植体特征和修复体特征，并对 80 例患者的 3 年以上病例资料和影像学资料进行回顾性分析。术前及种植体加载后 3 年采用锥形束 CT 进行检查，使用 One Volume Viewer 软件测量并计算种植体边缘骨高度。进行相关性分析，以确定牙尖倾斜度与边缘骨高度之间的关系。结果：牙尖倾斜度与种植体边缘骨高度呈正相关，相关系数为 0.661（p<0.001）；种植体直径、种植体类型和修复体类型与种植体边缘骨高度呈负相关，相关系数分别为-0.364（p=0.001）、-0.232（p=0.038）和-0.298（p=0.007）。结论：在设计牙周病患者上颌后牙种植修复的咬合时，建议适当减小修复体的牙尖倾斜度。
