Effectiveness of spaced repetition learning using a mobile flashcard application among dental students: A randomized controlled trial

BACKGROUND

Dental education in India predominantly relies on traditional lecture-based learning (LBL), which may hinder student engagement and learning outcomes. To address these limitations, innovative learning methodologies, such as spaced repetition learning (SRL), are imperative. SRL prioritizes active recall and can enhance long-term knowledge retention. This study aims to assess the effectiveness of SRL delivered through a mobile flashcard application, in enhancing knowledge retention among dental undergraduates.

METHODS

This single-blind randomized controlled trial (CTRI/2023/10/059347), conducted in Belagavi, India, involved 90 dental students who were equally distributed into control (LBL) and test (lecture followed by SRL demonstration) groups after randomization. Rigorous expert review ensured the quality of PowerPoint presentation and mobile flashcard contents. Knowledge assessments were conducted at baseline, first, and third months using a validated and reliable questionnaire. A perception survey on learning techniques was administered after the first month. Analysis methods included descriptive analysis, Pearson's chi-square test, independent t-test, and repeated measures ANOVA with Bonferroni's post hoc test.

RESULTS

The pre- and post-intervention knowledge showed no significant differences, but the SRL group exhibited significantly higher retention at both first month (p ≤ 0.001) and third months (p ≤ 0.001) than the LBL group. Repeated measures ANOVA revealed significant pairwise differences in mean knowledge scores in SRL group. Students had significantly favorable perception toward SRL than LBL group.

CONCLUSION

SRL delivered through mobile flashcards significantly enhances knowledge retention compared to LBL among dental students. Positive student perceptions support SRL's integration into dental curricula, with implications for improving knowledge retention among them.

Awareness and Perception of Dental Undergraduates in Belagavi District Towards the Newly Proposed National Exit Test for India

BACKGROUND

 The National Dental Commission Bill of 2023 introduced the National Exit Test (NExT) as a common final examination for all dental graduates in India, granting them the license to practice. This study evaluated dental undergraduates' awareness and perceptions of the newly proposed NExT.

METHODS

 A self-administered questionnaire in English comprising 23 close-ended questions was used to assess the awareness and perception of the students. A pilot study was conducted to determine the sample size, and 510 students were selected using a simple random sampling technique. The survey was administered to students ranging from 1st to 4th-year undergraduates and interns from two dental colleges in the Belagavi District, India. The questionnaire demonstrated good reliability (Cronbach's alpha coefficient = 0.86) and a content validity ratio 0.82.

RESULTS

 Interns had the highest mean awareness (39.56 ± 8.99) and perception (40.87 ± 5.56) scores, whereas first-year students had the lowest, with statistically significant differences among the groups (p ≤ 0.001). Although 81% of students were aware of NExT in India, only 17.3% found it student-friendly. A positive correlation was seen between the perception and awareness scores (r = + 0.242; p ≤ 0.001). The dependence of awareness and perception scores on predictors such as age, gender, and year of study were 16.7% and 15.3%, respectively.

CONCLUSION

 Interns displayed a positive perception and higher awareness of NExT, whereas first and second-year dental students exhibited lower awareness and apprehensive perceptions. The introduction of NExT promises to enhance the overall quality of dental education on a national scale by providing high-quality care to patients.