Digital assessment of preparations at the pre-clinical level
In partnership with:
Presenter: Ana R. Benetti, Associate professor at the Department of Odontology, Faculty of Health and Medical Sciences, University of Copenhagen
Aim: To implement digital assessment of preparations for indirect restorations at the simulation clinics of the Department of Odontology, University of Copenhagen.
Materials and Methods: A group of students enrolled in the course of oral rehabilitation scanned their preparations using a table scanner (KaVo Arctica 3D Optical Scanner). Subsequently, the students used specific software (Dental Teacher 4.0, Kavo) to analyse different parameters of their preparations in three-dimensions.
Results: Most students were positive towards the digital assessment. Among the tools available in the software, the students judged as particularly good the possibility to overlap several layers (their own preparation, the master preparation and the unprepared tooth), to analyze preparation angles, and to take measurements of the tooth reduction. For students with difficulty in visualizing their preparations in 3D, the overlapping of the files seemed to aid a better understanding of preparation principles and gave them a reference to be followed. For talented students, the 3D visualization helped only with purposes of fine adjustments on the preparations. Among the limitations, the time pressure and the need of more computers for the students, difficulties from the students in interpreting the software color code, and limitation for the software to register large convergence angles can be mentioned.
Conclusions: The students and the teachers considered the digital assessment of preparations a very good pedagogical tool, which will benefit future students to be enrolled in the course.