Kivovics Márton, Pénzes Dorottya, Németh Orsolya, Mijiritsky Eitan
Department of Community Dentistry, Semmelweis University, 1088 Budapest, Hungary.
Head and Neck Maxillofacial Surgery, Department of Otolaryngology, Tel-Aviv Sourasky Medical Center, Sackler Faculty of Medicine, Tel-Aviv University, Tel Aviv-Yafo 6997801, Israel.
Materials (Basel). 2020 Dec 17;13(24):5759. doi: 10.3390/ma13245759.
The aim of our randomized clinical study was to analyze the influence of surgical experience and bone density on the accuracy of static computer-assisted implant surgery (CAIS) in edentulous jaws using a mucosa-supported surgical template with a half-guided implant placement protocol. Altogether, 40 dental implants were placed in the edentulous jaws of 13 patients (novice surgeons: 18 implants, 6 patients (4 male), age 71 ± 10.1 years; experienced surgeons: 22 implants, 7 patients (4 male), age 69.2 ± 4.55 years). Angular deviation, coronal and apical global deviation and grey level measurements were calculated for all implants by a blinded investigator using coDiagnostiX software. 3DSlicer software was applied to calculate the bone volume fraction (BV/TV) for each site of implant placement. There were no statistically significant differences between the two study groups in either of the primary outcome variables. There was a statistically significant negative correlation between angular deviation and both grey level measurements (R-value: -0.331, < 0.05) and BV/TV (R-value: -0.377, < 0.05). The results of the study suggest that surgical experience did not influence the accuracy of implant placement. The higher the bone density at the sites of implant placement, the higher the accuracy of static CAIS.
我们随机临床研究的目的是，使用带有半引导种植体植入方案的黏膜支持手术模板，分析手术经验和骨密度对无牙颌静态计算机辅助种植手术（CAIS）准确性的影响。总共在13名患者的无牙颌中植入了40颗牙种植体（新手外科医生：18颗种植体，6名患者（4名男性），年龄71±10.1岁；经验丰富的外科医生：22颗种植体，7名患者（4名男性），年龄69.2±4.55岁）。一名盲法研究者使用coDiagnostiX软件计算所有种植体的角度偏差、冠部和根尖整体偏差以及灰度测量值。应用3DSlicer软件计算每个种植体植入部位的骨体积分数（BV/TV）。两个研究组在任何主要结局变量上均无统计学显著差异。角度偏差与灰度测量值（R值：-0.331，<0.05）和BV/TV（R值：-0.377，<0.05）之间均存在统计学显著负相关。研究结果表明，手术经验不影响种植体植入的准确性。种植体植入部位的骨密度越高，静态CAIS的准确性越高。
