Fig. 3.

The frequency of use of oral care methods by dental and non-dental students before and after a traditional or e-learning course. a Toothbrushing, b flossing, c interproximal brushing, d gargling, e using a toothpick, f tongue cleaning. N-DBE non-dental students before the e-learning course, N-DAE non-dental students after the e-learning course, N-DBT non-dental students before the traditional course, N-DAT non-dental students after the traditional course, DBT dental students before the traditional course, DAT dental students after the traditional course. Chi-square test when n > 5; Fisher’s exact test when n≦5; ***P < 0.001; **P < 0.01; *P < 0.05)