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

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• 作者：Eleonora Atzeni&#xA0 ; [Author Vitae] ; Luca Iuliano&#xA0 ; [Author Vitae] ; Paolo Minetola&#xA0 ; [Author Vitae] ; Alessandro Salmi ; ^{alessandro.salmi@polito.it}&#xA0 ; [Author Vitae]
• 关键词：Prepared tooth ; Benchmark ; Three-dimensional measurements ; Surface digitization device ; Selective laser sintering
• 刊名：Computers in Biology and Medicine
• 出版年：2012
• 期刊代码：70_00104825
• 类别：med
• 出版时间：May, 2012
• 卷：42
• 期：5
• 页码：548-555
• 文件大小：493 K

摘要

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.