BACKGROUND This study evaluated the operating performance of an implant navigation system used by dental students and dentists of prosthodontic background with varying levels of experience. A surgical navigation system and optical tracking system were used, and dentists' accuracies were evaluated in terms of differences between the positions of actually drilled holes and those of the holes planned using software before surgeries. METHODS The study participants were 5 dental students or dentists who had studied in the same university and hospital but had different experience levels regarding implants. All participants were trained in operating the AqNavi system in the beginning of the study. Subsequently, using 5 pairs of dental models, each participant drilled 5 implant holes at 6 partially edentulous positions (11, 17, 26, 31, 36, and 47). In total, each participant conducted 30 drilling tests. RESULTS In total, 150 tests among 5 dentists at 6 tooth positions (11, 17, 26, 31, 36, and 47) were conducted. Although a comparison of the tests revealed significant differences in the longitudinal error (P < .0001) and angular error (P = .0011), no significant difference was observed in the total error among the dentists. CONCLUSIONS A relatively long operating time was associated with relatively little implant experience. Through the dental navigation system, dental students can be introduced to dental implant surgery earlier than what was possible in the past. The results demonstrated that the operational accuracy of the dental implant navigation system is not restricted by participants' implant experience levels. The implant navigation system assists the dentist in the ability to accurately insert the dental implant into the correct position without being affected by his/her own experience of implant surgery.

中文翻译：

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牙科经验对牙科植入物导航系统的影响。

背景技术这项研究评估了具有不同经验水平的牙科学生和具有牙齿修复背景的牙医所使用的植入物导航系统的操作性能。使用了手术导航系统和光学跟踪系统，并根据实际钻孔的位置与手术前使用软件计划的钻孔位置之间的差异评估了牙医的准确性。方法研究参与者为5名在同一所大学和医院就读过的牙科学生或牙医，但是他们对植入物的经验水平不同。在研究开始时，所有参与者都接受了操作AqNavi系统的培训。随后，使用5对牙科模型，每个参与者在6个部分无牙的位置（11、17、26、31、36和47）上钻了5个植入孔。每个参与者总共进行了30次钻探测试。结果总共对5个牙医在6个牙齿位置（11、17、26、31、36和47）进行了150次测试。尽管对测试结果的比较显示，纵向误差（P <.0001）和角度误差（P = .0011）存在显着差异，但牙医之间的总误差并未发现显着差异。结论相对较长的手术时间与相对较少的植入物经验有关。通过牙科导航系统，牙科学生可以比过去更早地进行牙科种植手术。结果表明，牙科植入物导航系统的操作精度不受参与者的植入物经验水平的限制。