A Study on Possibility of Clinical Application for Color Measurements of Shade Guides Using an Intraoral Digital Scanner

Yoon, Hyung‐In; Bae, Ji Won; Park, Ji‐Man; Chun, Yang Sook; Kim, Mi Ae; Kim, Minji

doi:10.1111/jopr.12559

Cited by 41 publications

(73 citation statements)

References 37 publications

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“…e clinical usage of intraoral scanners has become more and more common. For the last decade, the effectiveness of intraoral scanners was studied to prove their practicability in various clinical settings [1][2][3][4][5][6][7][8][9]. Digital impression systems, when proving their credibility to replace conventional impression methods will benefit the orthodontic clinicians and patients.…”

Section: Introductionmentioning

confidence: 99%

“…Conventional impression technique results in more discomfort especially for the orthodontic patients due to the presence of brackets and wire and additional time and effort required because of that. e scope of researches on intraoral scanning has been limited mostly to a prosthetic point of view [1,[3][4][5][6][7][8][9]. However, orthodontic conditions such as brackets and wires start to be included in more recent studies [11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Accuracy on Scanned Images of Full Arch Models with Orthodontic Brackets by Various Intraoral Scanners in the Presence of Artificial Saliva

Song

Kim

2020

BioMed Research International

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Aim. is study aims to evaluate the accuracy of scanned images of 4 clinically used intraoral scanners (CS3600, i500, Trios3, Omnicam) when scanning the surface of full arch models with various kinds of orthodontic brackets in the presence of artificial saliva. Materials and Methods. Four study models were prepared; bonded with ceramic, metal, and resin brackets, respectively, and without brackets. Reference images were taken by scanning the models with an industrial scanner. Study models were then applied with an artificial saliva and scanned 10 times, respectively, with the above 4 intraoral scanners. All images were converted to STL file format and analyzed with 3D analysis software. By superimposing with the reference images, mean maximum discrepancy values and mean discrepancy values were collected and compared. For statistical analysis, two-way ANOVA was used. Results. Omnicam (1.247 ± 0.255) showed higher mean maximum discrepancy values. CS3600 (0.758 ± 0.170), Trios3 (0.854 ± 0.166), and i500 (0.975 ± 0.172) performed relatively favourably. Resin (1.119 ± 0.255) and metal (1.086 ± 0.132) brackets showed higher mean maximum discrepancy values. Nonbracket (0.776 ± 0.250) and ceramic bracket (0.853 ± 0.269) models generally showed lower mean maximum discrepancy values in studied scanners. In mean discrepancy values, the difference between scanners was not statistically significant whereas among brackets, resin bracketed models (0.093 ± 0.142) showed the highest value. Conclusion. Intraoral scanners and brackets had significant influences on the scanned images with application of artificial saliva on the study models. It may be expected to have similar outcomes in an intraoral environment. Some data showed the discrepancy values up to about 1.5 mm that would require more caution in using intraoral scanners for production of detailed appliances and records.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Accuracy on Scanned Images of Full Arch Models with Orthodontic Brackets by Various Intraoral Scanners in the Presence of Artificial Saliva

Song

Kim

2020

BioMed Research International

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“…Существует также мнение, что цифровой внутриротовой сканер не следует использовать в качестве основного метода выбора цвета в клинической практике из-за значительных различий в цветовых параметрах по сравнению с колориметром [59].…”

Section: аппаратные (цифровые) методы определения цвета зубовunclassified

Comparative characteristics of conventional visual methods and instrumental digital methods for tooth color determination

Hasasna

Хасасна²,

Akulovich

et al. 2020

Russian Journal of Dentistry

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Shade matching is a challenging step and the major objective in esthetic and restorative dentistry. On many occasions, the production of the accurate target color will not be achieved due to errors in the registration of the target color, or errors in composing the appropriate color of the restoration in the dental laboratory. Thus, the accurate and correct shade matching of tooth and restoration is one of the most important quality criteria for the patient and the key to successful results for the dentist. Conclusion: Spectrophotometers, colorimeters, intraoral scanners, and imaging systems are useful and relevant tools for tooth color measurement and analysis, and for the quality control of color reproduction. The combination of visual and instrumental methods of tooth color determination will complement each other, leading toward predictable esthetic results.

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“…The color shade information obtained from intraoral scan data tended to be slightly bluer than the actual color shade and would thus be problematic to use as absolute data. However, since it is useful as a color map of teeth with white lines or brown spots, it would be best employed as a supplement [14].…”

Section: Accuracymentioning

confidence: 99%

Optical Impression in Restorative Dentistry

Park¹,

Shim²

2019

Computer Vision in Dentistry [Working Title]

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Intraoral scanners are responsible for data acquisition in digital workflow, which represents the first step in restorative dentistry. The present chapter aimed to investigate the various methods for acquiring oral information, diverse clinical applications based on optical impression technique, use of intraoral scan data according to the need for model, and the various considerations regarding the selection of intraoral scanners suitable for clinical goals. The acquired optical impression data can be sent anywhere in the world, which offers the advantage of overcoming any temporal or spatial constraints. The purpose of this chapter is to understand digital workflow using optical impression and to learn how to use it effectively in clinical practice.

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A Study on Possibility of Clinical Application for Color Measurements of Shade Guides Using an Intraoral Digital Scanner

Abstract: The digital intraoral scanner may not be used as the primary method of color selection in clinical practices, considering significant differences in color parameters with colorimeter. The scanner's capability in shade selection should be further evaluated.

Cited by 41 publications

References 37 publications

Accuracy on Scanned Images of Full Arch Models with Orthodontic Brackets by Various Intraoral Scanners in the Presence of Artificial Saliva

Accuracy on Scanned Images of Full Arch Models with Orthodontic Brackets by Various Intraoral Scanners in the Presence of Artificial Saliva

Comparative characteristics of conventional visual methods and instrumental digital methods for tooth color determination

Optical Impression in Restorative Dentistry

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