增强现实虚拟牙齿识别测试的有效性和用户体验。

Validity and User Experience in an Augmented Reality Virtual Tooth Identification Test.

机构信息

Hera Kim-Berman is Clinical Assistant Professor and Graduate Orthodontic Program Director, Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry; Elisabeta Karl is Clinical Assistant Professor, Department of Cariology, Restorative Sciences, and Endodontics, University of Michigan School of Dentistry; Jason Sherbel is a graduate orthodontic resident, University of Michigan School of Dentistry; Lauren Sytek is a graduate orthodontic resident, University of Michigan School of Dentistry; and Vidya Ramaswamy is Associate Director for Curriculum and Program Evaluation, University of Michigan School of Dentistry.

出版信息

J Dent Educ. 2019 Nov;83(11):1345-1352. doi: 10.21815/JDE.019.139. Epub 2019 Aug 12.

DOI:10.21815/JDE.019.139

PMID:31406007

Abstract

By leveraging emerging technologies in augmented reality (AR) and virtual reality (VR), a Virtual Dental Library and AR virtual tooth identification test were developed at a U. S. dental school. The AR virtual tooth identification test is a vision- based AR application that uses three-dimensional models of extracted human teeth as test items. The aims of this study were to investigate the validity of the AR virtual tooth identification test and evaluate the users' experience with the virtual testing method. The AR virtual tooth identification test scores were compared with real tooth identification tests, scores on three quizzes, final exam, and final grade for the course to assess its validity. In addition, a survey was used to assess students' perceptions of the AR tool. In 2018, all 109 first-year dental students who had completed the dental anatomy course were invited to participate in the study. Of the 93 participants, 61 (56% of total students) were included in the correlation analysis (32 were excluded due to incomplete test answer sheets or missing criterion measures). All 93 could respond to the survey and provide comments. In the results, the AR virtual tooth identification test had a positive correlation with the real tooth identification test (r=0.410, p<0.01), a combined score of two real tooth identification tests (r=0.545, p<0.01), the final exam (r=0.489, p<0.01), and overall grade for the dental anatomy course (r=0.661, p<0.01). On the tests, the students had some difficulty in viewing and manipulating the images and experienced technical difficulties related to their smartphones, and their survey responses expressed little support for the AR tool. Nevertheless, this study demonstrated criterion validity of the AR virtual assessment tool for tooth identification.

摘要

美国一所牙科学校利用增强现实（AR）和虚拟现实（VR）等新兴技术，开发了一个虚拟牙科图书馆和 AR 虚拟牙齿识别测试。AR 虚拟牙齿识别测试是一种基于视觉的 AR 应用程序，它使用提取的人类牙齿的三维模型作为测试项目。本研究旨在探讨 AR 虚拟牙齿识别测试的有效性，并评估用户对虚拟测试方法的体验。将 AR 虚拟牙齿识别测试成绩与真实牙齿识别测试、三次测验成绩、期末考试成绩和课程最终成绩进行比较，以评估其有效性。此外，还使用问卷调查评估学生对 AR 工具的看法。2018 年，邀请了所有完成牙科解剖学课程的 109 名一年级牙科学生参加这项研究。在 93 名参与者中，有 61 名（总学生的 56%）被纳入相关性分析（由于测试答题纸不完整或缺少标准测量，有 32 名被排除在外）。所有 93 名都可以对调查做出回应并发表意见。结果表明，AR 虚拟牙齿识别测试与真实牙齿识别测试呈正相关（r=0.410，p<0.01），两次真实牙齿识别测试的综合分数（r=0.545，p<0.01），期末考试（r=0.489，p<0.01），以及牙科解剖学课程的总体成绩（r=0.661，p<0.01）。在测试中，学生在查看和操作图像方面有些困难，并且在使用智能手机时遇到了技术困难，他们的调查回复也很少表示支持 AR 工具。然而，本研究证明了 AR 虚拟牙齿识别评估工具的标准有效性。