Deliberate Error-Based Learning in Dental Radiography: An Educational Study

Area of Science:

• Dental Education
• Radiography
• Medical Simulation

Background:

• Undergraduate dental students require effective training in intra-oral radiography.
• Identifying and correcting radiographic faults is crucial for diagnostic accuracy.
• Error management training (EMT) offers a potential pedagogical approach to enhance learning through deliberate error production and correction.

Purpose of the Study:

• To investigate if error management training (EMT) improves dental students' understanding of radiographic faults.
• To assess the impact of EMT on phantom-head intra-oral radiography performance.
• To compare EMT with conventional teaching methods in pre-clinical dental radiography.

Main Methods:

• A randomized controlled study involving 87 Year 2 dental undergraduates.
• Two groups: conventional teaching (slide-based) vs. EMT (hands-on error production/correction).
• Pre- and post-intervention assessments included multiple-choice tests and phantom-head imaging performance.

Main Results:

• Both groups improved in multiple-choice test scores and confidence.
• No significant differences were found between EMT and conventional groups in learning gains or imaging performance.
• Radiograph diagnostic acceptability was high at baseline and remained consistent, with no inter-group differences in quality shifts.

Conclusions:

• A single, short EMT session did not yield superior immediate outcomes compared to conventional teaching.
• Deliberate error-based learning is a feasible and positively received method in pre-clinical dental radiography.
• Further research is needed on longer or more structured EMT interventions to observe performance differences.