Abstract: Objective To apply 3D printing techniques to the clinical anatomy teaching of otolaryngology. Methods We reconstructed the three-dimensional models of temporal bones and paranasal sinuses based on CT scan data, and divided them into sub-models according to several interested planes on CT scan. Sub-models were printed with 3D printer. The CT images of interested planes were printed by normal printer and pasted to the appropriate sub-models. We also checked the accuracy of the anatomy models. Results We successfully made the digital and 3D printing models of temporal bones and paranasal sinuses. The CT scan images were compounded to the models. The key anatomy structures outside and inside of the temporal bone and paranasal sinuses can be shown clearly and exactly on the models. Conclusions The 3D printing models help the medical students to understand and master the clinical anatomy and radiology knowledge of otolaryngology. It’s a useful supplement for traditional teaching methods.

Key words: paranasal sinuses, temporal bones, skull base, printing, three-dimensional, teaching