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Published on: August 5, 2021
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3-Dimensional simulations and student learning in orthodontic education
Angus Cheuk Hin Ho1, Chongshan Liao1,2, Jiajing Lu1,3
1Division of Pediatric Dentistry and Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.
Summary
Dental students generally accept digital 3D electronic models (e-models) for learning, with most preferring a blended approach. Those preferring e-models showed better diagnostic performance, supporting simulation-based learning theories.
Area of Science:
- Dental Education
- Digital Health Technologies
- Orthodontics Learning
Background:
- Electronic dental models (e-models) are digital 3D tools for inquiry-based learning in dental education.
- Student perceptions and engagement with e-models vary, impacting learning outcomes.
- Investigating the relationship between student preferences for e-models and their learning is crucial.
Purpose of the Study:
- To assess undergraduate dental students' perceptions and preferences for electronic dental models (e-models) versus traditional plaster models.
- To evaluate the impact of e-model preference on diagnostic performance in an occlusion evaluation task.
- To explore the implications of student preferences for digital learning tools in dental education.
Main Methods:
- A questionnaire assessed perceptions and preferences of 40 third-year dental students.
- Students were grouped based on preference: plaster models, e-models, or no preference.
- A subset of students (N=9) participated in a hands-on digital occlusion workshop and a diagnostic test using specialized software, with mouse-clicks and time recorded.
Main Results:
- 72.5% of students preferred a combination of e-models and plaster models.
- Students preferring e-models (Group 2) scored higher on the diagnostic test and showed different interaction patterns (mouse-clicks) compared to other groups.
- No significant differences in time spent on knowledge questions were observed across groups.
Conclusions:
- Undergraduate dental students exhibit high acceptance of e-models in orthodontics, with a preference for blended learning approaches.
- E-model preference correlates with higher performance outcomes, aligning with cognitive load theory.
- Digital 3D models offer a valuable supplement to traditional methods in dental education.

