Making use of 3D-printed teeth models in teaching students offers an innovative approach. Empowering a highly efficient digital science to improve teaching. This gives opportunity to learn and enable intuitive dentist and student-patient communication. Clear and engaged satisfactory experience for teacher, student and patient. Thanks to the perfect representation of teeth anatomy, making use of 3D models in the teaching of endodontics may well be recommended as holding substantial potential in improving overall quality of training at the preclinical stage, with a view to appreciably reducing overall risk of encountering complications during the actual clinical work. The mistakes made by the students, for example, at the access cavity for root canal treatment stage were assessed with the help of 3D models, as well as their overall, hands-on learning progress was evaluated. Also in the clinical process, before the procedure with the participation of a patient, a student or a specialist may perform a treatment procedure on a tooth printed in 3D, based on tomography, under the supervision of an experienced specialist. 3D printing digital solutions and the popularization of these solutions around the globe are helping dental clinics and hospitals to effectively and efficiently achieve digital transformation.

The present research was aimed at imaging predentine, structure of the walls of the dentinal tubules, and distribution of collagen fibres on which the dentinal tubules are built, using microtomography. Methodology: Teeth were first demineralised and subsequently contrasted with uranyl acetate and osmium tetroxide. In the next stage, these contrasted teeth were analysed by X-rays with the use of Nanotom S. The Fiji Is Just ImageJ and VG Studio Max programs were used to conduct numerical analysis of the data. Then the 3D model was made. Results: The teeth serving as reference material were not subjected to contrasting agents. The images obtained via microtomography were poorly differentiated. Teeth contrasted with uranyl acetate: the spatial image of the entire tooth became very clearly visible. Teeth contrasted with osmium: the preparations differ in terms of contrast. This preparation enables the differentiation of sharper details throughout the tooth model. Conclusions: It was possible to show vessels and odontoblast spikes in the pulp chamber. It was also possible to follow the course of the dentinal tubules and to link the structures of the walls of the tubules with collagen fibres in the 3D image, with using Nanotom S microtomograph.