中华医学教育杂志

中华医学教育杂志 ›› 2023, Vol. 43 ›› Issue (9): 679-682.DOI: 10.3760/cma.j.cn115259-20220930-01249

• 教育技术 • 上一篇    下一篇

3D打印头模在口腔正畸学头影测量标志点定位教学中的应用

张馨, 牛钦, 韩冰, 陈斯   

  1. 北京大学口腔医院正畸科,北京 100081
  • 收稿日期:2022-09-30 出版日期:2023-09-01 发布日期:2023-08-29
  • 通讯作者: 陈斯, Email: elisa02@163.com
  • 基金资助:
    2020年度北京大学医学部教育教学研究课题(2020YB28);北京大学“教学新思路2.0”基金项目(YB22010);2021年北京大学口腔医学院教育教学研究课题(2021-PT-01)

Application of 3D printed craniofacial model in landmark identification teaching of orthodontic cephalometric measurement

Zhang Xin, Niu Qin, Han Bing, Chen Si   

  1. Department of Orthodontics, Peking University School and Hospital of Stomatology, Beijing 100081, China
  • Received:2022-09-30 Online:2023-09-01 Published:2023-08-29
  • Contact: Chen Si, Email: elisa02@163.com
  • Supported by:
    Education Reform Fund of Peking University Health Science Center (2020YB28); The Innovative Teaching Program 2.0 of Peking University (YB22010); Program for Educational Reform of Peking University School and Hospital of Stomatology (2021-PT-01)

PDF (PC)

58

摘要： 目的 探讨3D打印头模辅助教学对口腔正畸学头影测量标志点定位教学效果的影响。方法 2021年6月,选取北京大学医学部口腔医学专业2017级本科生70人,采用随机数字表将其分为试验组和对照组,每组35人。试验组采用3D打印头颅模型辅助教学,对照组进行传统课堂教学,并收集学生头影测量标志点定位结果。通过t检验比较学生定位结果与教师定位结果的差异。结果 以耳点为例,对照组学生测量的坐标值为(-46.62±1.13,6.33±1.23),试验组学生测量的坐标值为(-46.79±0.21,6.46±0.53),对照组离散程度大于试验组;试验组学生测量的坐标值与教师测量的坐标值差值为(0.22±0.18,0.65±0.45),小于对照组学生的(0.75±0.83,1.08±0.92),其差异具有统计学意义(X轴:t=3.70,P=0.001,Y轴:t=2.51,P=0.016)。结论 将3D打印头模应用于口腔正畸学头影测量定位教学中,可以帮提高学生头影测量定位的准确性。

关键词: 口腔医学, 正畸学, 3D打印, 头影测量, 标志点定位

Abstract: Objective To explore the effect of using 3D printed craniofacial model on orthodontic cephalometric landmark identification teaching. Methods A total of 70 stomatology undergraduates enrolled in 2017 were selected and randomized into experimental group and control group averagely in June, 2020. The experimental group used 3D printed cranial models to assist teaching while the control group conducted routine teaching. Landmark identification results of the two groups were collected and measured. T-test was used to assess the accuracy of landmark identification. Results The coordinate of porion in control group was (-46.62±1.13,6.33±1.23) and in experimental group was (-46.79±0.21,6.46±0.53), suggesting the dispersion in control group was larger. The difference between the coordinates of porion and the standard point in the control group (0.75±0.83,1.08±0.92) and in experimental group (0.22±0.18,0.65±0.45) were statistically significant (X-axis: t=3.698 P=0.001, Y-axis: t=2.505 P=0.016). Conclusions The teaching of landmark identification in cephalometric measurement assisted by 3D printed model can improve the accuracy of students' landmark identification results.

Key words: Oral medicine, Orthodontics, 3D printed model, Cephalometrics, Landmark identification

中图分类号: