Performance of undergraduate dental students on ICDAS clinical caries detection after different learning strategies

Luz, P B; Stringhini, C H; Otto, B R; Port, A L F; Zaleski, V; Oliveira, R S; Pereira, J T; Lussi, Adrian; Rodrigues, J A (2015). Performance of undergraduate dental students on ICDAS clinical caries detection after different learning strategies. European journal of dental education, 19(4), pp. 235-241. Wiley-Blackwell 10.1111/eje.12131

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AIM

This study aimed to evaluate the effect of a digital learning tool on undergraduate dental students' performance in detecting dental caries using ICDAS.

METHODS

An experimental digital learning tool (DLT) was created using digital photographs of sound and carious teeth. Thirty-nine students were divided into three groups (n = 13) and each assessed 12 randomly allocated patients before and after learning strategies: G1, ICDAS e-learning program; G2, ICDAS e-learning program plus DLT; G3, no learning strategy. Students (n = 32) reassessed patients 2 weeks after training.

RESULTS

Comparing before and after the learning strategies, any difference in the values of specificity and area under the ROC curve for all groups was found. Sensitivity was statistically significantly higher for G1 and G2. Comparing the groups, G2 showed a significant increase in sensitivity at the D2 and D3 thresholds. Spearman's correlations with the gold standard before and after the learning strategy were 0.60 and 0.61 for G1, 0.57 and 0.63 for G2, and 0.54 and 0.54 for G3, respectively. The Wilcoxon test showed a statistically significant difference between the values obtained before and after learning strategies for G1 and G2.

CONCLUSIONS

Use of the DLT after the ICDAS e-learning program tended to increase the sensitivity of ICDAS used by undergraduate dental students. The DLT appeared to improve dental students' ability to use ICDAS.

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