Abstract：
OBJECTIVE: To evaluate the accuracy of the implant accuracy and clinical effect of navigation-assisted immediate implant placement (IIP) in the posterior maxillary tooth region.
METHODS: This study included 60 patients with 96 implants undergoing IIP in the posterior maxillary region from January 2021 to December 2022, stratified into dynamic navigation and freehand implant groups. All clinical indicators, including initial stability, implant deviation (entry point deviation, end point deviation, depth deviation and angle deviation), marginal bone resorption and implant success rate, were systematically recorded.
RESULTS: All implants were successfully placed with an average torque of (24.38 ± 1.84)N.cm. The mean entry point deviation, apex point deviation and angular deviation in the navigation group were significantly smaller than that of the freehand group (P < 0.05). Marginal bone resorption was significantly less in the navigated group than in the freehand group (P < 0.05). All dental implants were considered an operational success and the mean follow-up time was (27.8 ± 8.4) months.
CONCLUSIONS: The application of dynamic navigation-assisted immediate implant placement in the maxillary posterior region can achieve good implant accuracy and satisfactory clinical results.
METHODS: This study included 60 patients with 96 implants undergoing IIP in the posterior maxillary region from January 2021 to December 2022, stratified into dynamic navigation and freehand implant groups. All clinical indicators, including initial stability, implant deviation (entry point deviation, end point deviation, depth deviation and angle deviation), marginal bone resorption and implant success rate, were systematically recorded.
RESULTS: All implants were successfully placed with an average torque of (24.38 ± 1.84)N.cm. The mean entry point deviation, apex point deviation and angular deviation in the navigation group were significantly smaller than that of the freehand group (P < 0.05). Marginal bone resorption was significantly less in the navigated group than in the freehand group (P < 0.05). All dental implants were considered an operational success and the mean follow-up time was (27.8 ± 8.4) months.
CONCLUSIONS: The application of dynamic navigation-assisted immediate implant placement in the maxillary posterior region can achieve good implant accuracy and satisfactory clinical results.
摘要：
目的：评估上颌后牙区域导航辅助立即植入（IIP）的植入物准确性和临床效果的准确性。
方法：本研究纳入了2021年1月至2022年12月在上颌后区接受IIP植入的60例患者，分为动态导航和徒手植入组。所有临床指标,包括初始稳定性，植入物偏差(入口点偏差，终点偏差,深度偏差和角度偏差)，边缘骨吸收和植入成功率，有系统地记录。
结果：所有植入物均成功放置，平均扭矩为（24.38±1.84）N。cm.平均入口点偏差，导航组的顶点偏差和角度偏差均明显小于徒手组（P<0.05）。导航组的边缘骨吸收明显少于徒手组（P<0.05）。所有牙种植体均被认为手术成功，平均随访时间为（27.8±8.4）个月。
结论：上颌骨后区应用动态导航辅助即刻种植体植入可取得良好的种植精度和满意的临床效果。
方法：本研究纳入了2021年1月至2022年12月在上颌后区接受IIP植入的60例患者，分为动态导航和徒手植入组。所有临床指标,包括初始稳定性，植入物偏差(入口点偏差，终点偏差,深度偏差和角度偏差)，边缘骨吸收和植入成功率，有系统地记录。
结果：所有植入物均成功放置，平均扭矩为（24.38±1.84）N。cm.平均入口点偏差，导航组的顶点偏差和角度偏差均明显小于徒手组（P<0.05）。导航组的边缘骨吸收明显少于徒手组（P<0.05）。所有牙种植体均被认为手术成功，平均随访时间为（27.8±8.4）个月。
结论：上颌骨后区应用动态导航辅助即刻种植体植入可取得良好的种植精度和满意的临床效果。
