School of Dentistry and Oral Health, Parklands Dr, Southport, QLD, Australia.
Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR, China.
J Prosthodont Res. 2019 Apr;63(2):167-172. doi: 10.1016/j.jpor.2018.11.003. Epub 2018 Dec 6.
To assess the average full-arch scanning time, perception and likelihood of future adoption of technology by final-year dental students using three different Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) intraoral scanning systems.
Final-year undergraduate Dental Students (FDS), with no prior experience of intraoral scanning, full-arch scanned (IOS) a mannequin head-mounted model under supervision. Three scanning systems were used, TRIOS Colour (TRIOS); True Definition (TDef); and CEREC AC OmniCam (CEREC). Thereafter, FDS completed a questionnaire to assess their perception of IOS. Data were analysed by Generalized Estimating Equations, Fisher's exact tests and logistic regression.
Forty-nine FDS participated. Average full arch IOS time varied significantly (p<0.001) among the TRIOS, CEREC, and TDef, at 4min (n=48), 4min 42s (n=33), and 7min 32s (n=41) respectively. IOS using the TRIOS was significantly (p<0.001) the quickest, while TDef was the slowest (p<0.001). Seventy-one percent of FDS had positive overall IOS experience. FDS who reported intraoral scanning was timesaving compared with conventional impressions were more likely to adopt the technology after graduation (odds ratio (OR)=11.91, 95% confidence interval (CI)=2.56-55.45, p=0.002).
Intraoral scanning performance of novice users varied significantly and was dependent on the scanning system used. The questionnaire showed that the overall IOS experience was positive amongst FDS. The perception of time-saving, when using IOS versus conventional impression methods, determined the likelihood of future adoption of the technology.
使用三种不同的计算机辅助设计/计算机辅助制造（CAD/CAM）口内扫描系统，评估最后一年牙科学生的全口扫描平均时间、感知和未来采用技术的可能性。
无口内扫描经验的最后一年本科牙科学生（FDS）在监督下对人头模型进行全口扫描（IOS）。使用三种扫描系统：TRIOS 彩色（TRIOS）；True Definition（TDef）；CEREC AC OmniCam（CEREC）。之后，FDS 完成一份调查问卷，以评估他们对 IOS 的感知。使用广义估计方程、Fisher 精确检验和逻辑回归分析数据。
49 名 FDS 参与了研究。TRIOS、CEREC 和 TDef 的平均全弓 IOS 时间差异有统计学意义（p<0.001），分别为 4 分钟（n=48）、4 分 42 秒（n=33）和 7 分 32 秒（n=41）。使用 TRIOS 的 IOS 明显更快（p<0.001），而 TDef 最慢（p<0.001）。71%的 FDS 对 IOS 有积极的整体体验。与传统印模相比，报告 IOS 省时的 FDS 更有可能在毕业后采用该技术（优势比（OR）=11.91，95%置信区间（CI）=2.56-55.45，p=0.002）。
新手用户的口内扫描性能差异很大，并且取决于使用的扫描系统。调查问卷显示，FDS 对整体 IOS 体验持积极态度。与传统印模方法相比，使用 IOS 节省时间的感知决定了未来采用该技术的可能性。
