Validity and reliability of three-dimensional palatal superimposition of digital dental models

Talaat, Sameh; Kaboudan, Ahmed; Bourauel, Christoph; Ragy, Nivine; Kula, Katherine; Ghoneima, Ahmed

doi:10.1093/ejo/cjx008

Cited by 32 publications

(42 citation statements)

References 17 publications

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“…The study was approved by the Indiana University Purdue University Indianapolis Institutional Review Board Committee. The same sample was previously utilized to confirm the reliability of linear and angular dental measurements with the OMSA software . Patients’ age ranged from 8 to 15 years (12.3 ± 1.9 years).…”

Section: Methodsmentioning

confidence: 99%

“…The scan data were then exported from the laser scanner in STL format file extension, and the files were imported into the OMSA. Pre‐ and post‐treatment digital models were superimposed with the OMSA software using the landmark‐based method . The medial rugae area was considered a stable reference area for maxillary dental models’ superimposition .…”

Section: Methodsmentioning

confidence: 99%

“…In order to superimpose the pre‐ and post‐treatment 3D digital maxillary models using OMSA on the conventional comuter screen, three points were registered on each of the pre‐ and post‐treatment digital maxillary models: the first point was located at the distal end of the incisive papilla, the other two points were located arbitrary distal to the first point along the midpalatal raphe (Figure A). The exact algorithm by which the superimposition was performed by these three registration points along the midpalatal raphe was described in an earlier study . The Microsoft HoloLens (Microsoft, Redmond, Washington) was used to upload the STL files of the pre‐ and post‐treatment 3D digital maxillary models.…”

Section: Methodsmentioning

confidence: 99%

“…The aim of this study was to assess the validity and reliability of 3D palatal superimposition of holograms of digital dental models using OMSA software running on the HoloLens device, compared to the conventional OMSA application running on a regular computer screen. Conventional OMSA application's validity and reliability have been proven in earlier research studies …”

Section: Introductionmentioning

confidence: 94%

“…The input of this program is the STL files derived from either laser‐scanned plaster casts or dental impressions. This software application is based on an innovative algorithm that reduces the amount of work needed to superimpose the 3D scanned dental models to a minimum . The aim of this study was to assess the validity and reliability of 3D palatal superimposition of holograms of digital dental models using OMSA software running on the HoloLens device, compared to the conventional OMSA application running on a regular computer screen.…”

Section: Introductionmentioning

confidence: 99%

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Three‐dimensional evaluation of the holographic projection in digital dental model superimposition using HoloLens device

Talaat

Ghoneima

Kaboudan

et al. 2019

Orthod Craniofacial Res

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Structured Abstract Objective To assess validity and reliability of palatal superimposition of holograms of 3D digital dental models using a customized software, (Ortho Mechanics Sequential Analyzer OMSA), installed on Microsoft HoloLens device as compared to the OMSA application running on a regular computer screen. Methods The sample consisted of pre‐ and post‐treatment digital maxillary dental models of 20 orthodontic cases (12.3 ± 1.9 years) treated by rapid maxillary expansion (two turns per day). For each case, the pre‐ and post‐treatment digital models were superimposed using hand gestures for marking the dental models holograms in mixed reality using the Microsoft HoloLens. The same models were then superimposed using the conventional landmark‐based method with OMSA software running on a regular computer screen. The same set of dental arch parameters was measured on the superimposed 3D data by the two software versions for comparison. Agreement in the superimposition outcomes among the two superimposition methods was assessed using Dahlberg error (DE), concordance correlation coefficients (CCCs) using two‐way ANOVA mixed model for absolute agreement and Bland‐Altman analysis. Results Repeatability was acceptable for all variables based on the high values of CCCs over 0.99 with a lower 95% confidence limit over 0.95 for any variable. The DE ranged from 0.14 mm to 0.36 mm. The absolute error did not exceed 0.5 mm for any variable. Conclusion Using the depth vision capabilities of the Microsoft HoloLens, 3D digital dental models can be reliably superimposed allowing virtual assessment of orthodontic treatment outcomes.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 94%

Section: Introductionmentioning

confidence: 99%

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