Evaluation of the accuracy of a mobile and a stationary system for three-dimensional facial scanning

Modabber, Ali; Peters, Florian; Kniha, Kristian; Goloborodko, Evgeny; Ghassemi, Alireza; Lethaus, Bernd; Hölzle, Frank; Möhlhenrich, Stephan Christian

doi:10.1016/j.jcms.2016.08.008

Cited by 102 publications

(91 citation statements)

References 20 publications

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“…Furthermore, Artec Eva has become a valuable tool in medical 3DSI. [20][21][22] To reconstruct the captured frames into a solid 3D mesh with high-resolution textures, the scanner uses its associated Artec Studio 12 software installed on a USB wired laptop. The finished 3D image can then be exported in the .obj format.…”

Section: Mobile Surface Scannersmentioning

confidence: 99%

“…With the emergence of professionally built portable surface scanners in recent years, the field of 3DSI has shifted to devices that are handheld, mobile, and more user-friendly [10][11][12] . Previous research on the validation and accuracy of different 3DSI systems conclude that established non-portable devices may be replaced in favor of these mobile 3D scanners.…”

Section: Introductionmentioning

confidence: 99%

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Validation of two handheld devices against a non-portable three-dimensional surface scanner and assessment of potential use for intraoperative facial imaging

Koban¹,

Perko²,

Etzel³

et al. 2020

Journal of Plastic, Reconstructive & Aesthetic Surgery

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Section: Mobile Surface Scannersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Validation of two handheld devices against a non-portable three-dimensional surface scanner and assessment of potential use for intraoperative facial imaging

Koban¹,

Perko²,

Etzel³

et al. 2020

Journal of Plastic, Reconstructive & Aesthetic Surgery

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“…3D facial photographs were acquired with the 3D optical FaceSCAN3D system (3D-Shape, Erlangen, Germany). 5 Patients were instructed to sit in a natural head position with eyes closed. Two facial images were obtained: one at rest with teeth in occlusion ( Figure 1A), and the other with exposure of anterior teeth using cheek retractors ( Figure 1B).…”

Section: Image Acquisitionmentioning

confidence: 99%

“…1 Recent studies suggested that lateral cephalometric radiographs were dispensable for most orthodontics treatment decisions. 2 Noninvasive imaging systems including laser scanners, 3 stereophotogrammetry, 4 and structured light imaging systems 5 were developed for facial measurement. Several studies have attempted to integrate digital dental models into three-dimensional (3D) facial images to simulate the anatomic dentofacial structure.…”

Section: Introductionmentioning

confidence: 99%

Integration of digital maxillary dental casts with 3D facial images in orthodontic patients:

Xiao¹,

Liu²,

Gu³

2019

The Angle Orthodontist

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Objective To evaluate three-dimensional (3D) accuracy and reliability of nonradiographic dentofacial images integrated with a two-step method. Methods 3D facial images, cone-beam computed tomography (CBCT) images and digital maxillary dental casts were obtained from 20 pre-orthodontic subjects. Digital dental casts were integrated into 3D facial images using a two-step method based on the anterior tooth area. 3D coordinate values of five dental landmarks were identified in both dentofacial images and CBCT images. The accuracy of the integration method was assessed with paired t-tests between dentofacial images and CBCT-based reference standards. Intraclass correlation coefficients (ICCs) were assessed for the reliability of dentofacial images and CBCT-based images. Analysis of variance and Kruskal-Wallis tests evaluated the accuracy of the method in different dimensions. Results There was no statistical difference between dentofacial images and CBCT reference standards in both translational and rotational dimensions (P > .05). Translational mean absolute errors for full dentitions were within 0.42 mm and ICCs were over 0.998 in x, y, and z directions. Rotational mean absolute errors for full dentitions were within 0.92° and ICCs over 0.734 in pitch, yaw, and roll orientations. Integration errors were significantly greater in the first molar, z-translation, and pitch rotation (P < .05). Conclusions Integrating 3D dentofacial images with the two-step method is precise and acceptable for clinical diagnostics and scientific purposes. Errors were greater in the molar region, z-translation, and pitch rotation.

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“…Noninvasive 3D scanning methods of facial and intraoral structures are becoming increasingly popular in dental and orthodontic practice. These scans enable extremely accurate measurements in all dimensions [14,15]. In addition, a 3D scan is easy to conduct, and can therefore be performed cost-efficiently by nonmedical staff.…”

Section: Introductionmentioning

confidence: 99%

Children with Fetal Alcohol Syndrome (FAS): 3D-Analysis of Palatal Depth and 3D-Metric Facial Length

Blanck-Lubarsch

Dirksen

Feldmann

et al. 2019

IJERPH

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Background: Drinking alcohol during pregnancy can result in severe developmental disorders in the child. Symptoms of the fetal alcohol spectrum disorder (FASD) comprise growth deficiencies, abnormal facial phenotype and damage or dysfunction of the central nervous system. Numerous diagnostic methods for facial phenotyping in FASD exist, but diagnoses are still difficult. Our aim was to find additional and objective methods for the verification of FAS(D). Methods: Three-dimensional dental models of 60 children (30 FAS and 30 controls) were used to metrically determine maximum palatal depths at the median palatine raphe. Three-dimensional facial scans were taken, and vertical distances of the face were measured at five defined facial landmarks (FP1-FP5) for each child. Results: Mean palatal height, total facial length (FP1-FP5) as well as FP4-FP5 did not significantly differ between the FAS group and the control group. Comparing vertical facial subdivisions, however, resulted in significant differences for distances FP1 to FP2 (p = 0.042, FAS > controls), FP2 to FP3 (p < 0.001, FAS < controls), FP3 to FP4 (p < 0.001, FAS > controls) and FP3 to FP5 (p = 0.007, FAS > controls). Conclusions: Metric vertical measurements of the face can be used as additional objective criteria for FAS diagnoses. However, no significant differences were reported for palatal depth evaluation in the specific age range tested in the present study.

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Evaluation of the accuracy of a mobile and a stationary system for three-dimensional facial scanning

Cited by 102 publications

References 20 publications

Validation of two handheld devices against a non-portable three-dimensional surface scanner and assessment of potential use for intraoperative facial imaging

Validation of two handheld devices against a non-portable three-dimensional surface scanner and assessment of potential use for intraoperative facial imaging

Integration of digital maxillary dental casts with 3D facial images in orthodontic patients:

Children with Fetal Alcohol Syndrome (FAS): 3D-Analysis of Palatal Depth and 3D-Metric Facial Length

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