A comparison between customized clear and removable orthodontic appliances manufactured using RP and CNC techniques

Martorelli, Massimo; Gerbino, Salvatore; Giudice, M; Ausiello, Pietro

doi:10.1016/j.dental.2012.10.011

Cited by 118 publications

(81 citation statements)

References 20 publications

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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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“…28 3DPT is used for copings, partial fixed dental prostheses, anatomic contour pressable patterns, and partial removable dental prosthesis frameworks, which are formed in either wax or acrylic resin. 29 Accuracy is defined to assess the degree of closeness of the internal gap measurements to the reference values (programmed die spacer thicknesses). Therefore, the purpose of this study was to evaluate the accuracy and precision of the die spacer thickness achieved by combining CAD and 3DPT to test the accuracy of CAD/3DPT by comparing various measured internal gap thicknesses with the prescribed values of 25 μm, 45 μm, 65 μm, 85 μm, and 105 μm.…”

mentioning

confidence: 99%

Die spacer thickness reproduction for central incisor crown fabrication with combined computer-aided design and 3D printing technology: An in vitro study

Hoang

Thompson

Cho

et al. 2015

The Journal of Prosthetic Dentistry

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“…Each device has specific characteristics and requirements regarding material, environmental conditions, the temperature of the process, the and stage of the final model preparation. Due to the diversity of properties and the varied availability of the RP technologies, none of these dominates in the field of medical applications; this applies to dental surgery as well [25].…”

Section: Introductionmentioning

confidence: 99%

“…[22] and [23] rapid tooling (RT) [24] and machining [25] are currently used to fabricate dental models. These models help a surgeon to diagnose, plan a treatment [26] and [27] and perform surgery [28] and [29].…”

Section: Introductionmentioning

confidence: 99%

Analysis of the Accuracy of Reconstructed Two Teeth Models Manufactured Using the 3DP and FDM Technologies

Budzik

Burek

Bazan

et al. 2016

SV-JME

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Traditional computer modelling is performed using CAD systems. Everything starts with a constructor idea. They present their concept on a technical drawing and then perform it in a virtual environment of a 3D model. This model may then be manufactured with the use of available methods. The problem arises when technical documentation of an object, for example, a tooth model, is not available.2D images are the traditional way of presenting anatomical structures; unfortunately, this method is sometimes ineffective. In advanced cases of dental conditions, there are difficulties in the recognition and proper interpretation of 2D images of the affected area. This is why other ways to show the shape of the complex internal structures have been researched, such as the (3DP and FDM). They were similarly aligned in the work space of both printers to maintain similar conditions of printing, and similar layer thicknesses of 0.1 mm and 0.13 mm were used. The printed models were scanned using a focus variation (FV) microscope. The scanned geometry of the models of the two teeth was compared with the geometry of the teeth after their segmentation and filtering. A fitting process was carried out using the best fit algorithm with a fitting condition of 0.001 mm. The achieved accuracy of the FV measurements was significantly higher than the accuracy of the used printing methods. FV can be applied to performing 3D scans of complex shapes such as the crown and roots of a tooth. 3DP models have more homogenous structure, whereas layer structure is easy to recognize for FDM models. Due to that, the 3DP models have to be strengthened using infiltration, which makes it more difficult to predict the final dimensions and to achieve required accuracy. Keywords: dental model, reverse engineering, rapid prototyping, focus variation Highlights • The accuracy of FDM and 3DP techniques were examined in terms of manufacturing dental models such as tooth models.• The infiltration applied to the 3DP models reduced in accuracy compared to FDM models.• For the FDM models, the values of mean deviation were negative and met the accuracy specified by the printer's manufacturer.• Due to infiltration the values of mean deviation of 3DF models were positive.• The infiltration also caused the models manufactured with the FDM to be more accurate than the 3DP ones.• It was determined that the focus variation method can be applied to measure parts with a complex shape, such as the crown and roots of a tooth.

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A comparison between customized clear and removable orthodontic appliances manufactured using RP and CNC techniques

Cited by 118 publications

References 20 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

Die spacer thickness reproduction for central incisor crown fabrication with combined computer-aided design and 3D printing technology: An in vitro study

Analysis of the Accuracy of Reconstructed Two Teeth Models Manufactured Using the 3DP and FDM Technologies

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