Abstract: PURPOSE:To explore the value of clinical case database based on 3D-printing in clinical teaching of oral maxillofacial bone diseases. METHODS: 3D printing models and clinical data of 80 cases with typical oral and maxillofacial bone diseases were selected to establish teaching database of typical clinical cases. Thirty-four undergraduates (grade 2013) majoring in stomatology from Fujian Medical University were randomly divided into experimental group and control group, with 17 students in each group. Students in the control class were received traditional teaching methods, whereas the new teaching model of combination with typical clinical case teaching database based on 3D printing and clinical data was employed in the experimental group. All students were examined in theory and skill with the same examination standard (a hundred marks), and the learning effect was evaluated by questionnaire after the courses ended. The data were compared with independent-samples t test using SPSS 19.0 software package. RESULTS: The overall clinical assessment score of the experimental group was(78.82±; 3.70), while the score of the control group was(72.94±; 3.70). In the experimental group, the score result of questionnaire was(22.88±; 0.70), while the score of the control group was(17.29±; 1.53), the differences were statistically significant(P<; 0.05). CONCLUSIONS: Use of teaching database of typical clinical cases based on 3D-printing in the clinical teaching of oral maxillofacial bone diseases can significantly help students to firmly grasp the teaching contents, form their clinical ideation, foster their practical capability and stimulate their learning enthusiasm and confidence, which is worth wide application.

Key words: Oral and maxillofacial surgery, Bone diseases, 3D printing, Clinical teaching, Database