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Proceedings of CAD'17, 2017, 317-321
Alignment of Dental Depth Images from an Intraoral Scanner
Abstract. Owing to the increased demand for biocompatibility and esthetically pleasing dental restorations, all-ceramic restorations such as glass-boned porcelain and phase-stabilized zirconia have been introduced in restorative dentistry. The development of all-ceramic restoration has allowed wider expanded application in dental CAD/CAM. It is because of the manufacturing of all-ceramic restoration requiring a 3D dental model for machining operations. Today, various digitizing systems have been proposed to obtain 3D dental models. More recently, there are two methods to digitize a 3D model. First one is performing directly in the patient’s mouth (intraoral) and second one is performing indirectly after taking an impression and fabricating master cast (extraoral). One of the probably most well-known digitizing system is an extraoral system using plaster model. However, A 3D dental model obtained from intraoral scanner can be used as an alternative to conventional plaster casts. Intraoral digitization allows the dental-care provider to obtain directly the data from the patient’s teeth. This method creates 3D models in real-time by registration of each depth image. Thus, it is not necessary to take an impression and fabricating plaster model. Further, this method shows real-time intermediate results of 3D Model during measurement. Also, it can be stored easily, and transmitted digitally. An intraoral scanning technology that provides ease of measurement has more attractive than conventional dental impression system.
Keywords. 3D scanning, Intraoral scanner, 3D alignment, registration