Photogrammetry as an alternative for acquiring digital dental models: A proof of concept

Stuani, Vitor de Toledo; Ferreira, Rafael; Manfredi, Gustavo G. P.; Cardoso, Matheus Völz; Sant’Ana, Adriana Campos Passanezi

doi:10.1016/j.mehy.2019.05.015

Cited by 30 publications

(27 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The accuracy of photogrammetry was evaluated in terms of precision (deviation between datasets from the same acquisition method) and trueness (deviation between datasets from different acquisition methods) [ 15 , 26 ]. Regarding the precision of the photogrammetry, the results of the present study were found to agree with those obtained by Stuani et al [ 6 ]. Moreover, the measurements made on the digital models derived from photogrammetry were consistent with the measurements made on the plaster model taken as the reference.…”

Section: Discussionsupporting

confidence: 93%

“…For many years, the use of photogrammetry was difficult because of the strict need to use special equipment to take images and processing them [ 6 , 27 ]. As some studies reported [ 28 , 29 ], in recent years, due to the advancement of technology in the field of digital photography and the creation of specific software, photogrammetry has become an accurate, reliable, and economically accessible method for most dentists, and it is now becoming an interesting resource in the field.…”

Section: Discussionmentioning

confidence: 99%

“…Photogrammetry could be a good method for transforming small objects into 3D models with size and shape similar to the original object [ 5 ]. In the dental and in maxillofacial fields, this source of acquisition could be useful for obtaining digital dental models from plaster models [ 6 , 7 , 8 ], to estimate facial asymmetry and to design orthognathic surgery [ 9 ], in addition to the diagnosis, case study and facial soft tissue measurements in orthodontics and dentofacial orthopaedics [ 10 , 11 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Digital Dental Models: Is Photogrammetry an Alternative to Dental Extraoral and Intraoral Scanners?

et al. 2022

View full text Add to dashboard Cite

Background: 3D models are nowadays part of daily clinical practice. Photogrammetry is a brand-new method for transforming small objects into 3D models while keeping their original shape and size. The aim of this study was to evaluate the accuracy, in terms of precision and trueness, of a digital dental model acquired with photogrammetry compared with those obtained using extraoral scanners and intraoral scanners, starting from the same plaster model. Methods: A plaster model was converted into a digital model using photogrammetry, an extraoral scanner and an intraoral scanner. Different references were measured twice at a distance of 30 min for each model, on the digital models using the software Blender and on the plaster model using a calibre. The Interclass Correlation Coefficient was calculated for each pair of measurements. A volumetric analysis was performed by superimposing the digital models. The coefficient of variation was calculated. A two-way ANOVA test was conducted. Results: For each reference, the coefficient of variation was less than 3%, and the two ANOVA tests resulted in a non-significant value in both cases (p > 0.05). The volumetric analysis demonstrated good agreement between the models derived from the different acquisition methods. Conclusions: Photogrammetry seems to be a good method for acquiring digital models starting from a plaster model, all the methods tested seem to be good for obtaining an accurate three-dimensional digital model. Other studies are needed to evaluate clinical efficacy.

show abstract

Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Digital Dental Models: Is Photogrammetry an Alternative to Dental Extraoral and Intraoral Scanners?

et al. 2022

View full text Add to dashboard Cite

show abstract

“…This is true for all the IOSs in the market in different measures, two of which are analyzed in this study, Trios (T) and True Definition (TD) [ 41 , 42 ]. However, the third scanner used in this study was PIC Dental (PIC), which was specifically designed for complete arch multiple implant impressions, adapting the stereophotogrammetry technology to the oral cavity [ 43 , 44 , 45 , 46 , 47 , 48 ].…”

Section: Introductionmentioning

confidence: 99%

In Vivo Complete-Arch Implant Digital Impressions: Comparison of the Precision of Three Optical Impression Systems

Pérez

Gimenez-Gonzalez

Ortiz-Collado

et al. 2022

IJERPH

View full text Add to dashboard Cite

(1) Multiple in vitro studies reported insufficient accuracy of intraoral scanners (IOSs) for complete-arch multiple implant impression. The aim of the study is to analyze the precision of three IOSs, PIC dental (Pic dental, Iditec North West SL), TRIOS 3 (3Shape), and True Definition (Midmark Corporation) and the influence of several factors in the edentulous complete maxillary and mandibular arch. (2) A fully edentulous patient with eight implants in the maxillary and in the mandibular jaw was selected. Five impressions were taken per system and arch. A suprastructure was designed on each digital working cast. The precision was analyzed comparing each of the 28 distances and seven relative angulations of the abutments of all the designed suprastructures. The descriptive statistics, the Student’s t-test, and the ANOVA test were used to analyze the data (α = 0.05). (3) Significant differences were observed when comparing the IOSs in some of the distances and angulations. (4) The increase in the distance between implants affected the precision of T and TD but not the PIC system. The type of arch did not affect the PIC precision, but the T and TD systems performed worse in the mandibular arch. The system with the best precision was the PIC, followed by TD, and then T.

show abstract

“…Some early work on orthodontic applications of uncalibrated photogrammetry can be found in [ 32 ] for face scanning, in which the deviation of smartphone-photos-based photogrammetry was about 0.604 mm versus 0.060 mm for Konica Minolta Scanning, and in [ 46 ] for plaster-model scanning, in which the discrepancy between plaster model-based and photogrametric reconstruction-based measurements ranged from 0.433 to 0. 611 mm.…”

Section: Introductionmentioning

confidence: 99%

Integration and Application of Multimodal Measurement Techniques: Relevance of Photogrammetry to Orthodontics

Pojda

Tomaka

Luchowski

et al. 2021

Sensors

View full text Add to dashboard Cite

Multimodal imaging, including 3D modalities, is increasingly being applied in orthodontics, both as a diagnostic tool and especially for the design of intraoral appliances, where geometric accuracy is very important. Laser scanners and other precision 3D-imaging devices are expensive and cumbersome, which limits their use in medical practice. Photogrammetry, using ordinary 2D photographs or video recordings to create 3D imagery, offers a cheaper and more convenient alternative, replacing the specialised equipment with handy consumer cameras. The present study addresses the question of to what extent, and under what conditions, this technique can be an adequate replacement for the 3D scanner. The accuracy of simple surface reconstruction and of model embedding achieved with photogrammetry was verified against that obtained with a triangulating laser scanner. To roughly evaluate the impact of image imperfections on photogrammetric reconstruction, the photographs for photogrammetry were taken under various lighting conditions and were used either raw or with a blur-simulating defocus. Video footage was also tested as another 2D-imaging modality feeding data into photogrammetry. The results show the significant potential of photogrammetric techniques.

show abstract

Photogrammetry as an alternative for acquiring digital dental models: A proof of concept

Cited by 30 publications

References 33 publications

Digital Dental Models: Is Photogrammetry an Alternative to Dental Extraoral and Intraoral Scanners?

Digital Dental Models: Is Photogrammetry an Alternative to Dental Extraoral and Intraoral Scanners?

In Vivo Complete-Arch Implant Digital Impressions: Comparison of the Precision of Three Optical Impression Systems

Integration and Application of Multimodal Measurement Techniques: Relevance of Photogrammetry to Orthodontics

Contact Info

Product

Resources

About