CAD/CAM/AM applications in the manufacture of dental appliances

Mortadi, Noor Al; Eggbeer, Dominic; Lewis, Jeff; Williams, Robert J.

doi:10.1016/j.ajodo.2012.04.023

Cited by 75 publications

(64 citation statements)

References 10 publications

(9 reference statements)

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“…13 3D printing has also been used to provide implant-supported cutting guides for mandibular reconstruction, 14 orthodontic appliances such as Andresen appliances, sleep apnoea appliances, 15 aligners 16 and orthognathic surgery splints. 17 Virtual 3D and 3D printed models have the potential to be useful for pre-surgical planning and intra-operative harvesting of bone for alveolar bone grafting.…”

Section: Introductionmentioning

confidence: 99%

Accuracy of both virtual and printed 3-dimensional models for volumetric measurement of alveolar clefts before grafting with alveolar bone compared with a validated algorithm: a preliminary investigation

Kasaven

McIntyre

Mossey

2017

British Journal of Oral and Maxillofacial Surgery

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Accuracy of both virtual and printed 3-dimensional models for volumetric measurement of alveolar clefts prior to alveolar bone grafting compared to a validated algorithm Kasaven, C. P.; McIntyre, Grant; Mossey, Peter General rightsCopyright and moral rights for the publications made accessible in Discovery Research Portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from Discovery Research Portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain.• You may freely distribute the URL identifying the publication in the public portal. Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. Results: Inter-observer reliability was almost perfect (ICC = 0.987). There were no significant differences between the three methods (p>0.05) although virtual 3D models were the most precise with the smallest standard deviations and confidence intervals.Conclusion: In this preliminary investigation, virtual 3D and 3D printed models were as precise as the validated computer algorithm for calculating alveolar cleft volumes prior to bone grafting but virtual 3D models were the most accurate and subject to further investigation could be a useful adjunct in clinical practice.

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Section: Introductionmentioning

confidence: 99%

Accuracy of both virtual and printed 3-dimensional models for volumetric measurement of alveolar clefts before grafting with alveolar bone compared with a validated algorithm: a preliminary investigation

Kasaven

McIntyre

Mossey

2017

British Journal of Oral and Maxillofacial Surgery

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“…This was a development of a previous study 6 , which used jigs to wrought bend wires rather that AM-produce them directly. This reduces the number of steps required to produce the device.…”

Section: Discussionmentioning

confidence: 99%

“…The build was stopped at an appropriate point and the alloy components were inserted in the build manner previously described 6 . SLA was the AM process that was chosen for fabrication since it enables the build to be paused and pre-fabricated pieces to be inserted and built around.…”

Section: Figure 11: Differential Length Of the Tags Fitted On The Casmentioning

confidence: 99%

“…In orthodontics and related areas, they have been used for building and inserting a preformed wrought labial bow in a build of an Andresen appliance 6 and for building a sleep apnoea device with four rotating hinges in a single build. 7 It has also been used to build customized removable appliances without wire or brackets (Invisalign system; Align Technology, Inc., Santa Clara, CA) 8 -9 and to produce customized brackets fitted on the lingual surfaces of teeth 10 In this study, CAD/AM technology was used to fabricate a retainer incorporating Adam's clasps and a fitted labial bow from an intra-oral scan without using dental casts.…”

Section: Introductionmentioning

confidence: 99%

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Fabrication of a resin appliance with alloy components using digital technology without an analog impression

Mortadi

Jones

Eggbeer

et al. 2015

American Journal of Orthodontics and Dentofacial Orthopedics

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ABSTRACT:The aim of this study was to fabricate a resin appliance incorporating 'wire' components without the use of an analogue impression and dental casts using an intra-oral scanner and computer technology to build the appliance. The prototype incorporated two Adam's clasps and a fitted labial bow. Firstly, the alloy components were built from Co/Cr in an initial powdered form using established digital technology methods and then inserted into a build of a resin base plate. This paper reports the first known use of Computer Aided Design and Additive Manufacture to fabricte a Hawley retainer.The scan data was imported into an appropriate, specialized computer aided design software, which was used in conjunction with a force feedback (haptic) interface. The appliance designs were then exported as STereoLithography files and transferred to an additive manufacture machine for fabrication.The results revealed that the applied techniques provide new manufacture and design opportunities in orthodontics and suggest the need for intra-oral specific additive manufacture materials to be produced and tested for biocompatibility compliance. The retainer was trial fitted orally and judged acceptable by the clinician by following few criteria regarding to the fitting of clasps on the teeth and fitting of base plate on the palate. Introduction:

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“…As far as the orthodontic discipline, this 3D technology has paved the way for virtually designing and fabricating orthodontic appliances. It is the current leap for orthodontic computer-aided design (CAD) and computer-aided manufacturing (CAM) techniques [4] [5] [6].…”

Section: Manuscript Propermentioning

confidence: 99%

Accuracy of Orthodontic 3D Printed Retainers versus Thermoformed Retainers

Nasef¹,

El-Beialy²,

Eid³

et al. 2017

OJMI

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Background: The integration of the current technology of CBCT and 3D CAD/CAM technology has great potential in the field of orthodontics, which is not yet fully investigated. The purpose of this article is to evaluate the accuracy of 3D printed retainers in comparison to vacuum formed retainers. Methods: Alginate impressions were taken for ten patients who have a CBCT scan. A 3D printed retainer and vacuum formed retainer were fabricated. Linear measurements were measured by two assessors using digital caliper. Every measurement on the 3D printed retainer was compared to the corresponding measurement on the thermoformed retainer. The linear measurements were Inter-canine width, Inter-premolar width (first and second premolars), Inter-molar width, Canine-midline length (both sides) and Canine-molar length (both sides). Intra-observer, and inter-observer reliability measurements were done. Results: Results showed excellent intra-observer reliability for the thermoformed retainer and the 3D printed retainer. Inter-observer measurements showed strong agreement between the measurements of the two assessors, for both retainers. The comparison of the thermoformed retainer to the 3D printed retainer showed high statistical agreement, except for the canine-molar on the right side, but with no clinical significance,

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CAD/CAM/AM applications in the manufacture of dental appliances

Cited by 75 publications

References 10 publications

Accuracy of both virtual and printed 3-dimensional models for volumetric measurement of alveolar clefts before grafting with alveolar bone compared with a validated algorithm: a preliminary investigation

Accuracy of both virtual and printed 3-dimensional models for volumetric measurement of alveolar clefts before grafting with alveolar bone compared with a validated algorithm: a preliminary investigation

Fabrication of a resin appliance with alloy components using digital technology without an analog impression

Accuracy of Orthodontic 3D Printed Retainers versus Thermoformed Retainers

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