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Web-Based Augmented Reality vs. Interactive Presentation for Learning Caries Detection: A Randomized Study on Student

Sofía Folguera1, Carmen Llena1, José Luis Sanz1

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Web-based augmented reality (AR) significantly boosted dental students' motivation for caries detection training compared to 2D presentations. This 3D spatial interaction enhances learning and engagement in dental education.

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Area of Science:

  • Dental Education
  • Medical Simulation
  • Augmented Reality

Background:

  • Augmented Reality (AR) shows potential in dental education, but its effectiveness in caries detection training is not well-established.
  • Existing research lacks comparisons between AR and traditional 2D methods for this specific training.

Purpose of the Study:

  • To compare the motivational impact of a web-based AR (WebAR) learning object versus an interactive 2D presentation on undergraduate dental students learning caries detection.
  • To evaluate student motivation using the Reduced Instructional Materials Motivation Survey (RIMMS).

Main Methods:

  • Two learning objects were developed: a WebAR experience and an interactive 2D presentation, using identical patient dental records and assets.
  • Third-year dental students were randomly assigned to either the AR or 2D group, completed caries identification, and then filled out the RIMMS survey.
  • Statistical analysis used the Mann-Whitney U test to compare motivation scores between groups.

Main Results:

  • The AR group reported significantly higher overall motivation scores (4.14 vs. 3.53 on a 5-point scale; p < 0.001) compared to the 2D group.
  • Specific motivational components like Attention, Confidence, Satisfaction, and Relevance were significantly higher in the AR group (p < 0.05).
  • Qualitative feedback indicated more positive comments for AR (75.8%) versus the 2D resource (31.0%).

Conclusions:

  • WebAR learning objects can significantly enhance student motivation for caries detection training compared to equivalent 2D materials.
  • Incorporating 3D spatial interaction into dental education materials is a viable strategy to improve learner engagement and motivation.
  • This approach offers a low-cost, scalable method for improving dental training effectiveness.