Fig. 3

Mirror training using Mirrosistant improves the operation performance of dental students on SIMODONT system. The box plots showing test scores of mirror operation using SIMODONT system. A Comparison of the 1^st examination between the Ctrl group and the Exp group. The Mann–Whitney test was performed. B Comparison of the 1^st and 2^nd examinations in the Ctrl group. The paired t-test was performed. C Comparison of the 1^st and 2^nd examination in the Exp group. The Wilcoxon rank-sum test was performed. D Comparison of the 2^nd examination between the Ctrl group and the Exp group. The Mann–Whitney test was performed