Generation of three-dimensional prototype models based on cone beam computed tomography

Lambrecht, J. Thomas; Berndt, Dorothea; Schumacher, Ralf; Zehnder, Marc S.

doi:10.1007/s11548-008-0275-9

Cited by 35 publications

(28 citation statements)

References 17 publications

(14 reference statements)

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“…The models were therefore assessed as being suitable for surgical planning, and surgery was performed accordingly. In 2009 Lambrecht et al [7] published their workflow for 3D model fabrication based on CBCT datasets; however, the authors concluded that automated routine fabrication was too time-consuming and expensive [7].…”

Section: Discussionmentioning

confidence: 99%

“…In 2009 Lambrecht et al [7] published their basic workflow for the production of CBCT-based 3D models, which was modified slightly in our study.…”

Section: Methodsmentioning

confidence: 99%

“…Modern Cone-Beam CT (CBCT) scanners, which have now been used routinely in maxillofacial imaging for approximately 15 years [4][5][6], generate DICOM datasets which can also be used for model production [7].…”

Section: Introductionmentioning

confidence: 99%

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Craniomaxillofacial surgery planning based on 3D models derived from Cone-Beam CT data

Adolphs

Liu

Keeve

et al. 2013

Computer Aided Surgery

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Introduction: Individual planning of complex maxillofacial corrections may require 3D models which can be manufactured based on DICOM datasets. The gold standard for image acquisition is still high-resolution multi-slice computed tomography (MSCT). However, appropriate datasets for model fabrication can be acquired by modern Cone-Beam CT (CBCT) devices that have been developed specifically for maxillofacial imaging. The clinical utility of individual models fabricated on the basis of CBCT datasets was assessed. Methods: In five patients affected by different deficiencies of the maxillofacial skeleton, preoperative imaging was performed with ILUMA CBCT. Segmentation of hard tissues was performed manually by thresholding. Corresponding STL datasets were created and exported to an industrial service provider (Alphaform, Munich, Germany) specializing in rapid prototyping, and 3D models were fabricated by the selective laser sintering (SLS) technique. For variance analysis, landmark measurements were performed on both virtual and 3D models. Subsequently, maxillofacial surgery was performed according to the model-based planning. Results: All CBCT-based DICOM datasets could be used for individual model fabrication. Detailed reproduction of individual anatomy was achieved and a topographic survey showed no relevant aberrance between the virtual and real models. The CBCT-based 3D models were therefore used for planning and transfer of different maxillofacial procedures. Conclusions: CBCT-based datasets can be used for the fabrication of surgical 3D models if the correct threshold is set. Preoperative workflow and patient comfort is improved in terms of the fast-track concept by using this ''in-house'' imaging technique.

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Section: Discussionmentioning

confidence: 99%

“…In 2009 Lambrecht et al [7] published their basic workflow for the production of CBCT-based 3D models, which was modified slightly in our study.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Craniomaxillofacial surgery planning based on 3D models derived from Cone-Beam CT data

Adolphs

Liu

Keeve

et al. 2013

Computer Aided Surgery

View full text Add to dashboard Cite

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“…Patients and medical trainees and residents can benefit from 3D printed models [26,98]. High maintenance charges, cultural and social complications, and formalin-related safety issues are making cadavers a limited source for medical education [99,100].…”

Section: Surgical Educationmentioning

confidence: 99%

Three-Dimensional Printing: A Novel Technology for Use in Oral and Maxillofacial Operations

Keyhan¹,

Ghanean²,

Navabazam³

et al. 2016

A Textbook of Advanced Oral and Maxillofacial Surgery Volume 3

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Three-dimensional (3D) printing is cited as "a novel, fascinating, future builder technology" in many papers and articles. Use of this technology in the field of medicine and especially oral and maxillofacial surgery is expanding. The type of manufacturing systems, materials, cost-effectiveness, and also bio-printing, with studies from around the world today, make this field a "hot-topic" in reconstructive and regenerative surgery. This chapter evaluates the latest updates and scientific uses of 3D printing.

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“…[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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Generation of three-dimensional prototype models based on cone beam computed tomography

Cited by 35 publications

References 17 publications

Craniomaxillofacial surgery planning based on 3D models derived from Cone-Beam CT data

Craniomaxillofacial surgery planning based on 3D models derived from Cone-Beam CT data

Three-Dimensional Printing: A Novel Technology for Use in Oral and Maxillofacial Operations

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

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