Comparison of virtual and physical dimensions in AM resin dental devices and fit of devices with conventionally produced base plates
Al Mortadi, Noor
MetadataShow full item record
Purpose – The purpose of this study is to develop and apply clinically relevant methods of analysing the accuracy of dental appliances fabricated using additive manufacture (AM) compared to the computer-aided design (CAD) geometry. The study also comparedfit between conventionallylaboratory-fabricated and AM-produced base plates. Design/methodology/approach – The techniques were applied to two types of dental devices where AM fabrication methods could foreseeably be used as an alternative to laboratory production. “L” and cubic shapes of defined dimensions and spatial locations were positioned on the devices which were fabricated using AM. For assessing the dimensions, the“L”and cubic shapes were then measured on the physical builds ten times andcompared to the CAD model. To assess thefit of AM and lab-produced devices, three upper and three lower conventionally fabricated acrylic baseplates were compared to three upper and three lower plates. Silicone impression material was allowed to set between the casts and the base plateswhichfilled any discrepancy between the two surfaces. The thickness of this silicone media was measured ten times atfive different points on eachbase plate type and the results compared. Findings –The results indicated that the evaluated CAD/AM technique is able to produce dental appliance components that are consistent with tolerance levels that would be expected with conventional methods of base plate design. This research demonstrated that a fully CAD/AM methodology represents a potentially viable alternative to conventional lab-based methods for two types of dental appliances.
Rapid Prototyping Journal;
Al Mortadi, N., Eggbeer, D., Lewis, J. and Williams, R. (2017) 'Comparison of virtual and physical dimensions in AM resin dental devices and fit of devices with conventionally produced base plates', Rapid Prototyping Journal, 24 (1) pp.188-194
This article was published in Rapid Prototyping Journal on 15 February 2018, available at https://doi.org/10.1108/RPJ-06-2016-0101
Cardiff Metropolitan University (Grant ID: Cardiff Metropolian (Internal))
- Un-themed 
Showing items related by title, author, subject and abstract.
Comparative analysis of structure and hardness of cast and direct metal laser sintering produced Co-Cr alloys used for dental devices Lapcevic, Ana; Jevremovic, Danimir; Puskar, Tatjana; Williams, Robert; Eggbeer, Dominic (Emerald, 2016-01-18)Purpose: The purpose of this paper is to analyse structure and measure hardness of Co-Cr dental alloy samples made with two different technologies, conventional casting method (CCM samples) and additive direct metal laser ...
Fabrication of a resin appliance with alloy components using digital technology without an analog impression Al Mortadi, Noor; Jones, Quentin; Eggbeer, Dominic; Lewis, Jeff; Williams, Robert J. (Elsevier Masson, 2015)The aim of this study was to fabricate a resin appliance incorporating “wire” components without the use of an analog impression and dental casts using an intraoral scanner and computer technology to build the appliance. This ...
Comparison of Accuracy and Ease of Fabrication Between Computer Aided Design/Computer Aided Manufacture and Laboratory Implant Guides Johnston-Cree, Lauren (2018-05)Objectives: The purpose of this study was to investigate accuracy and ease of fabrication between CAD/CAM and laboratory implant guides among dental technologists. Methods: An online questionnaire was constructed consisting ...