Simodont Training in virtual reality to prepare for the reality

1. Simodont Training in virtual reality to prepare for the reality

3. Current educational circumstances • Golden standard from the “best” preparation. • Criteria – inter and intra observer reliability low. • Mental model developed on preparation model on plastic teeth. • Internal model not based on pathology. • Problem solving is taught as a separate skill. • Only in the clinic problem solving, pathology and preparation design are integrated.

4. Why change? • Educational reasons - improve integration theory and practice - process and outcome evaluation - incorporation of problem solving in preclinical training - practice in realistic context closing the gap to the clinic

5. Why change? • Practical reasons - reduction of maintenance costs - no waste of materials - no water problems ( legionella) - unlimited availability of practice material

6. Practical skill development and caries treatment • Accurate realistic 3D simulation of both manual dexterity and pathologic concepts. Proper haptics and realistic images. Realistic mental modeling, muscle memory, proprioceptive training. • Integration of existing and present knowledge. This is the case, why are you going to do what and how are you going to do it? • Realistic interaction with the virtual patient Simulation of space limitations (tongue, cheek) and patients perceptions.

7. Advantage of complete virtual imitation • Integration of techniques and theory. • Unlimited practicing in a safe and almost real-life situation. • Time and partially space independent ( lap top work station). • Level of skill can be easily adapted. • Development from skills to competencies • Saving of materials, equipment and staff.

8. Borders of the virtual dimensions • Complete patient. • Complete oral cavity. • Dental arch(es) with soft tissue. • Dental arch(es) only. • Single tooth.

9. Stereo Projection Haptic feedback Course ware 3D models of real teeth

10. System borders selectedfor Simodont version I • Realistic force feedback. • Realistic imaging. • resolution of 3D models. • hardness and color of tissue structures. • stereo imaging • collocation of image and haptics . • Dental arch(es) only.

11. Simodont Preclinic/lab Clinic Patients Clinic Patients Simodont Preclinic lab

12. Purpose of the study • To investigate if students without any dental experience practicing at the Simodont will develop skills transferable to reality at a similar level as students practicing in the traditional preclinical setting

13. Experiment

15. Design • Students practice after an initial test their manual dexterity for handling a dental bur either on the Simodont or with a real bur on resin plates. • Thereafter they perform a similar test on plastic blocks

16. Courseware 12/21/2019 20

17. Courseware

18. Courseware

19. Courseware

23. Criteria Preparation border within 1st and 2nd circle Wall perpendicular to the bottom and outer surface. Bottom within certain level and flat

28. Kruskall Wallis Control vs Ph and Simodont p< .05 Time point 1 vs 3 Ph, Simod p<.05

29. Kruskall Wallis Control vs Ph and Simodont p<.05 Time point 1 vs 3 Ph –Simo p< .05

30. Conclusions • Practicing resulted in a better performance than without practicing. • Skills transfer from the Simodont to reality was equal as from reality to reality. • Practicing after the second test did not show any improvement probably due to reduced concentration and fatigue

31. Simodont Preclinic/lab Clinic Patients Clinic Patients Simodont Preclinic lab

32. Decision strategy in new development Innovation or evidence, what first?

33. Thanks p.wesselink@acta.nl