摘要目的:探讨第一人称视角视频教学在口腔科住院医师牙体预备临床操作技能培训中的应用效果。方法:2020年1月至2022年11月，选择在首都医科大学附属北京安贞医院口腔科接受住院医师规范化培训的20名学员为研究对象。采用试验对照方法，将学员随机平均分为试验组和对照组，比较观看第一人称视角视频的试验组学员和观看第三人称视角视频的对照组学员牙体预备培训的教学效果，通过拟合扫描数据来测量三维方向的牙体预备量进行客观评分，并由学员对教学效果进行主观评价。采用单因素方差分析对数据进行统计学处理。结果:试验组学员备牙客观评价整体成绩[(54.2±1.0)分]高于对照组学员[(43.0±2.3)分]，其差异具有统计学意义( P<0.001)。试验组学员对教学视频指导意义的评分为(86.6±14.1)分，高于对照组学员的(67.6±11.8)分，其差异具有统计学意义( P<0.05)。 结论:第一人称视角视频教学有助于住院医师规范化培训学员更好地理解掌握牙体预备知识要点和提高操作水平，教学满意度更高。

abstractsObjective:To explore the effectiveness of first-person perspective (FPP) video teaching in the clinical operative skills training of tooth preparation for dental residents.Methods:From January 2020 to November 2022, 20 residents in the Department of Stomatology at Beijing Anzhen Hospital, Capital Medical University were enrolled in this study. A randomized controlled trial was conducted, dividing the participants equally into an experimental group (FPP video) and a control group (third-person perspective). The teaching outcomes were compared by objectively scoring the three-dimensional dental preparation volume using fitted scan data, along with subjective evaluations from the participants. Statistical analysis was performed using one-way ANOVA.Results:The experimental group achieved significantly higher overall objective scores [(54.2±1.0) points] compared to the control group [(43.0±2.3) points], P<0.001. Subjective evaluations of the instructional videos′ effectiveness were also higher in the experimental group [(86.6±14.1) points vs. (67.6±11.8) points, P<0.05]. Conclusions:FPP video teaching enhances residents′ comprehension of key dental preparation techniques and improves operational proficiency, with higher satisfaction rates in standardized residency training.