Evaluation of virtual laboratory Simodont in the teaching of dental cavity preparation

doi:10.3877/cma.j.issn.1674-1366.2017.02.010

Abstract

Abstract:

Objective

To analyze and evaluate the effect of Virtual Laboratory Simodont applied in the preclinic teaching of dental cavity preparation.

Methods

Thirty dental undergraduates from China Medical University were selected and randomly divided into three groups after being unified with theory training, 10 students for each group with gender parity. Group C was a control, whereas group F and M were trained in the traditional phantom lab (with conventional plastic prefab tooth) and in the Simodont lab, respectively. Tests for the preparation skill were performed before, during and after training. Scores were recorded upon both the visual assessment of teachers and a digital evaluation system according to the preparation requirements of permanent molars ClassⅡ cavity. Evaluation results were analyzed with Kruskal Wallis test and multiple comparisons, with significance level α= 0.05.

Results

The preparation skill of the experimental groups was improved through the training, especially for the students trained in the Simodont lab (TEST3_C= 3.8 ± 2.2, TEST3_F= 5.2 ± 1.9, TEST3_M= 7.4 ± 1.4; t_CF= 2.79, P_CF= 0.021; t_CM= 4.65, P_CM= 0.001; t_FM= 3.01, P_FM= 0.013) . The result of digital evaluation was consistent with that of visual assessment by teachers. Both group F and M were improved after two stages of practice (χ²_F=39.56, P_F< 0.001; χ^2M= 41.73, P_M<0.001) . The result of group M was significantly better than that of group C and F (χ^2CM= 31.16, P_CM= 0.001; χ^2FM= 24.89, P_FM= 0.006) .

Conclusions

Simodont can help dental students improve their practice skills, and strengthen the teaching effect of cavity preparation, so that it is of high recommendation in the dental preclinical teaching.

Key words: Oral medicine, Dental cavity preparation, Training, preclinical, Virtual reality, Simodont system

Yanhong Wang, Xiaohua Zhu, Siwen Li, Shishi Li, Hao Zhang, Xiudi Shi, Hongmei Ma. Evaluation of virtual laboratory Simodont in the teaching of dental cavity preparation[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2017, 11(02): 119-125.

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Figures/Tables 7

References 25

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等级	距离(mm)	轴角（°）
A	标准± 0.2	标准± 5
B	标准±(0.2 ~ 0.3)	标准±(5 ~ 10)
C	标准±(0.3 ~ 0.5)	标准±(10 ~ 15)
D	其余	其余

等级	距离(mm)	轴角（°）
A	标准± 0.2	标准± 5
B	标准±(0.2 ~ 0.3)	标准±(5 ~ 10)
C	标准±(0.3 ~ 0.5)	标准±(10 ~ 15)
D	其余	其余

组别	学生数	TEST1	TEST2	TEST3
C组	10	2.1 ± 1.6	3.5 ± 2.1	3.8 ± 2.2
F组	10	1.5 ± 1.2	3.7 ± 1.9	5.2 ± 1.9
M组	10	1.1 ± 0.8	5.2 ± 2.0	7.4 ± 1.4

组别	学生数	TEST1	TEST2	TEST3
C组	10	2.1 ± 1.6	3.5 ± 2.1	3.8 ± 2.2
F组	10	1.5 ± 1.2	3.7 ± 1.9	5.2 ± 1.9
M组	10	1.1 ± 0.8	5.2 ± 2.0	7.4 ± 1.4

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