Oral and Maxillofacial Surgery Division, DIBINEM, University of Bologna, 40125 Bologna, Italy.
Division of Oral and Maxillofacial Surgery, Dental Clinic, University of Modena and Reggio Emilia, 41125 Modena, Italy.
Int J Environ Res Public Health. 2020 Mar 24;17(6):2153. doi: 10.3390/ijerph17062153.
the aim of this in vitro study was to test whether the implant placement accuracy and the operating time can be influenced by the operator's experience.
sixteen models underwent a (Cone Beam Computer Tomography) CBCT and implant positioning was digitally planned on this. The models were randomly assigned to four operators with different levels of surgical experience. One hundred and twelve implant sites were drilled using a dynamic navigation system and operating times were measured. Based on postoperative CBCTs, dental implants were virtually inserted and superimposed over the planned ones. Two-dimensional and 3D deviations between planned and virtually inserted implants were measured at the entry point and at the apical point. Angular and vertical errors were also calculated.
considering coronal and apical 3D deviations, no statistically significant differences were found between the four operators ( = 0.27; = 0.06). Some vectorial components of the deviation at the apical point and the angular errors of some operators differed from each other.
within the limitations of this study, dynamic navigation can be considered a reliable technique both for experienced and novice clinicians.
本体外研究旨在测试操作人员的经验是否会影响种植体植入的准确性和手术时间。
16 个模型进行了（锥形束 CT）CBCT 检查，并在此基础上进行了数字化种植体定位。将模型随机分配给 4 名具有不同手术经验水平的操作人员。使用动态导航系统钻 112 个种植体，并测量手术时间。基于术后 CBCT，虚拟插入种植体并与计划种植体进行叠加。在入口点和根尖点测量计划种植体和虚拟插入种植体之间的二维和三维偏差。还计算了角度和垂直误差。
考虑到冠部和根尖部的三维偏差，4 名操作人员之间没有统计学上的显著差异（ = 0.27； = 0.06）。一些操作人员根尖部的偏差向量成分和角度误差存在差异。
在本研究的限制范围内，动态导航可以被认为是一种可靠的技术，无论是对于经验丰富的临床医生还是新手医生。
