Proposal of an innovative benchmark for accuracy evaluation of dental crown manufacturing

Authors:
Eleonora Atzeni;Luca Iuliano;Paolo Minetola;Alessandro Salmi
Affiliations:
Politecnico di Torino, Department of Management and Production Engineering (DIGEP), Corso Duca degli Abruzzi, 24-10129 Torino, Italy;Politecnico di Torino, Department of Management and Production Engineering (DIGEP), Corso Duca degli Abruzzi, 24-10129 Torino, Italy;Politecnico di Torino, Department of Management and Production Engineering (DIGEP), Corso Duca degli Abruzzi, 24-10129 Torino, Italy;Politecnico di Torino, Department of Management and Production Engineering (DIGEP), Corso Duca degli Abruzzi, 24-10129 Torino, Italy
Venue:
Computers in Biology and Medicine
Year:
2012

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Computer-aided analysis of the influence of digitizing and surfacing on the accuracy in dental CAD/CAM technology

Computers in Biology and Medicine

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Abstract

An innovative benchmark representing a dental arch with classic features corresponding to different kinds of prepared teeth is proposed. Dental anatomy and general rules for tooth preparation are taken into account. This benchmark includes tooth orientation and provides oblique surfaces similar to those of real prepared teeth. The benchmark is produced by additive manufacturing (AM) and subjected to digitization by a dental three-dimensional scanner. The evaluation procedure proves that the scan data can be used as reference model for crown restorations design. Therefore this benchmark is at the basis for comparative studies about different CAD/CAM and AM techniques for dental crowns.