Abstract:
Objective To make a preliminary evaluation of the application of digital virtual teaching system in tooth preparation for an all-ceramic crown of an anterior tooth.
Methods Forty-five students, who participated in 2018 and 2019 Clinical Skills Exhibition Activities for Stomatology Students (21 in 2018 exhibition activities named 2nd "South China Cup" and 24 in 2019 named 3rd "Guanghua Cup" ) , performed tooth preparation for an all-ceramic crown on a plastic tooth of left upper central incisor (#21) by using the test mode of the digital virtual teaching system. The scores of tooth preparation were assessed by two professional judges and the system, respectively, which was then analyzed by the Pearson Correlation (SPSS 26.0) . Moreover, the assessment time required by the judges was also recorded.
Results The correlation coefficients of the scores by the two assessment methods in 2018 and 2019 were 0.567 (P = 0.007) and 0.544 (P = 0.006) , respectively. The scores assessed by the digital virtual teaching system were obtained at the end of tooth preparation, while the professional judges required a mean of 2.31 minutes in 2018 and 1.88 minutes in 2019 for evaluation.
Conclusions The digital virtual teaching system can be applied in the tooth-preparation training for undergraduates, and give a real-time assessment. The scores were positively correlated with the judges′. Both of the two assessment methods have their own advantages and disadvantages, so that a combination of the two might be more effective in teaching.
Key words:
Tooth preparation,
Crowns,
All-ceramic crowns,
Anterior tooth,
Digital virtual teaching system
Xueling Li, Ling Yang, Shuyi Wu, Xiangnan Wu, Yun Hong, Baoru Li, Ke Zhao. Preliminary evaluation of digital virtual teaching system applied in tooth preparation for an all-ceramic crown on a plastic anterior tooth[J]. Chinese Journal of Stomatological Research(Electronic Edition), 2020, 14(03): 187-190.