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Visual interpretation of panoramic radiographs in dental students using eye-tracking technology
FelsyPremila Gnanasekaran1, Latha Nirmal2, Sujitha P3
1Department of Central Research Facility, Sri Ramachandra Faculty of Clinical Research, Sri Ramachandra Institute of Higher Education and Research (Deemed to be University), Chennai, India.
Dental undergraduates using eye-tracking technology showed varied visual search patterns on panoramic radiographs (PR). Findings indicate a need to revise teaching strategies for systematic PR interpretation in dental education.
Area of Science:
- Ophthalmology
- Dental Education
- Radiology
Background:
- Eye-tracking technology, while established in education, is emerging in Pediatric Dentistry.
- Panoramic radiographs (PR) are crucial diagnostic tools in dentistry.
Purpose of the Study:
- To analyze dental undergraduates' visual search patterns and fixations on PR using eye-tracking.
- To identify opportunities for improving teaching methods for PR interpretation.
Main Methods:
- Sixty-five final-year dental undergraduates participated.
- Eye-tracking was performed using a Tobii Pro Nano device with pre-defined Regions of Interest (ROIs) on five PR.
- A think-aloud protocol was employed during image viewing.
Main Results:
- Average PR viewing time was 245.58 seconds.
- Participants spent more time on dentition areas (97.58s) than surrounding structures (14.85s).
- Males had slightly longer average view times than females.
Conclusions:
- Despite focusing on ROIs, most students failed to diagnose correctly.
- Observed search patterns lacked systematic sequencing.
- Revision of teaching strategies for PR interpretation is necessary.
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