Abstract：
The present study aims to describe an in-house protocol for fully guided zygomatic implant surgery and prosthesis repositioning.
Four extramaxillary zygomatic dental implants (ZIs) were placed in one patient. The preoperative phase included digital planning, through which a surgical guide was designed and created. The analysis of the accuracy of guided surgery and the guided prosthesis repositioning was carried out by superimposing the digital planning with the final postsurgical implant positioning through CBCT. The radiologic evaluation included implant angular deviation, entrance and exit deviation, platform deviation, and apex apicocoronal and mesiodistal deviation. The prosthetic evaluation was performed in three directions: buccopalatal, apicocoronal, and mesiodistal.
All the ZIs successfully osseointegrated after 3 months of healing, with no complications. The mean axial angular implant deviation was 0.52 ± 0.36 degrees, and the mean implant depth deviation was 0.47 ± 0.28 mm. The entrance and exit deviation of the implants was 0.74 ± 0.42 mm and 0.7 ± 0.43 mm, respectively. The virtual prosthesis was superimposed and compared with the standard tessellation language file of the provisional polymethyl methacrylate prosthesis at the level of the first molars and central incisors; the mean buccopalatal deviation was 0.6 ± 0.035 mm, the mean apicocoronal deviation was 0.65 ± 0.11 mm, and the mean mesiodistal deviation was 0.3 ± 0.07 mm.
According to the results obtained in this first case of the present case series, careful and meticulous digital planning based on the correct prosthetic parameters can safely guide the performance of surgery.
Four extramaxillary zygomatic dental implants (ZIs) were placed in one patient. The preoperative phase included digital planning, through which a surgical guide was designed and created. The analysis of the accuracy of guided surgery and the guided prosthesis repositioning was carried out by superimposing the digital planning with the final postsurgical implant positioning through CBCT. The radiologic evaluation included implant angular deviation, entrance and exit deviation, platform deviation, and apex apicocoronal and mesiodistal deviation. The prosthetic evaluation was performed in three directions: buccopalatal, apicocoronal, and mesiodistal.
All the ZIs successfully osseointegrated after 3 months of healing, with no complications. The mean axial angular implant deviation was 0.52 ± 0.36 degrees, and the mean implant depth deviation was 0.47 ± 0.28 mm. The entrance and exit deviation of the implants was 0.74 ± 0.42 mm and 0.7 ± 0.43 mm, respectively. The virtual prosthesis was superimposed and compared with the standard tessellation language file of the provisional polymethyl methacrylate prosthesis at the level of the first molars and central incisors; the mean buccopalatal deviation was 0.6 ± 0.035 mm, the mean apicocoronal deviation was 0.65 ± 0.11 mm, and the mean mesiodistal deviation was 0.3 ± 0.07 mm.
According to the results obtained in this first case of the present case series, careful and meticulous digital planning based on the correct prosthetic parameters can safely guide the performance of surgery.
摘要：
目的：本研究的目的是描述一种完全引导的骨植入手术和假体复位的内部方案。
方法：在1例患者中放置了4个腋外颧牙种植体（ZIs）。术前阶段包括数字计划，通过它设计和创建了一个手术指南。通过CBCT将数字计划与最终的术后植入物定位叠加，对引导手术和引导假体重新定位的准确性进行了分析。放射学评估包括植入物角度偏差，入口和出口偏差，平台偏差,和先端顶冠状和近端偏斜。假体评估在三个方向上进行：颊部，顶冠状,和远端。
结果：所有ZIs在3个月的愈合后都成功骨整合，没有并发症。植入物的平均轴向角度偏差为0.52±0.36度，平均植入深度偏差为0.47±0.28mm。植入物的入口和出口偏差为0.74±0.42mm和0.7±0.43mm，分别。将虚拟假体叠加，并与第一磨牙和中切牙水平的临时聚甲基丙烯酸甲酯假体的标准镶嵌语言文件进行比较；平均颊侧偏差为0.6±0.035mm，平均顶冠部偏差为0.65±0.11mm，平均近端偏离为0.3±0.07mm。
结论：根据本病例系列的第一个病例获得的结果，根据正确的假体参数进行细致细致的数字规划，可以安全地指导手术的执行。
方法：在1例患者中放置了4个腋外颧牙种植体（ZIs）。术前阶段包括数字计划，通过它设计和创建了一个手术指南。通过CBCT将数字计划与最终的术后植入物定位叠加，对引导手术和引导假体重新定位的准确性进行了分析。放射学评估包括植入物角度偏差，入口和出口偏差，平台偏差,和先端顶冠状和近端偏斜。假体评估在三个方向上进行：颊部，顶冠状,和远端。
结果：所有ZIs在3个月的愈合后都成功骨整合，没有并发症。植入物的平均轴向角度偏差为0.52±0.36度，平均植入深度偏差为0.47±0.28mm。植入物的入口和出口偏差为0.74±0.42mm和0.7±0.43mm，分别。将虚拟假体叠加，并与第一磨牙和中切牙水平的临时聚甲基丙烯酸甲酯假体的标准镶嵌语言文件进行比较；平均颊侧偏差为0.6±0.035mm，平均顶冠部偏差为0.65±0.11mm，平均近端偏离为0.3±0.07mm。
结论：根据本病例系列的第一个病例获得的结果，根据正确的假体参数进行细致细致的数字规划，可以安全地指导手术的执行。
