【摘要】 目的 ：比较纯钛切削金属环形杆与铸造金合金研磨杆在颧种植支持赝复体修复中的临床效果。方法 ：选择2017年1月—2024年10月在上海交通大学医学院附属第九人民医院因肿瘤术后双侧上颌骨缺损进行颧种植体联合连接环支撑赝复体修复的患者11例，其中6例采用纯钛切削金属环形杆连接赝复体，另5例采用铸造金合金环形立体研磨杆。从赝复体脱位、赝复体磨损、连接螺丝折断、总体满意度4个方面进行评分，评价修复效果的差异。结果：与纯钛切削金属环形杆连接方式相比，金合金研磨杆连接赝复体脱位、连接螺丝折断及总分得分较低，差异具有统计学意义（P<0.05）；而赝复体磨损及总体满意度方面差异不显著（P>0.05）。结论：纯钛切削金属环形杆是修复双侧上颌骨缺损较为理想的颧种植支持赝复体连接方式。更多还原

【Abstract】 PURPOSE: To compare the clinical effects of pure titanium-milled metal rings and cast gold alloy milled rods in the prosthetic rehabilitation of zygomatic implant-supported prostheses. METHODS: A total of 11 patients were selected from January 2017 to October 2024 in Shanghai Ninth People’s Hospital, Shanghai Jiao Tong University School of Medicine. The patients were repaired by zygomatic implant-supported prostheses with different types of ring connectors due to bilateral maxillary defects after tumor surgery. Among them, 6 cases used pure titanium-milled metal rings to connect the prosthetics, and the other 5 cases used cast gold alloy milled rods. The difference of repair effect was evaluated from 4 aspects: prosthesis retention, prosthesis wear, connection screw fractures and overall satisfaction. RESULTS: Compared to pure titanium-milled metal rings, the cast gold alloy milled rod connection scored significantly lower in prosthesis retention, connection screw fractures, and overall scores(P<0.05). No significant differences were observed in prosthesis wear or overall satisfaction(P>0.05). CONCLUSIONS: Pure titanium-milled metal rings are a more suitable connection method for prosthetic rehabilitation of bilateral maxillary defects using zygomatic implants.更多还原