The Journal of Indian Prosthodontic Society

ORIGINAL ARTICLE
Year
: 2021  |  Volume : 21  |  Issue : 3  |  Page : 281--286

Validity and reliability of tooth color selection by smartphone photography and software applications


Abolghasem Mohammadi1, Zeinab Bakhtiari2, Fatemeh Mighani3, Fatemeh Bakhtiari4 
1 Department of Prosthodontic, School of Dentistry, Shaid Beheshti University of Medical Sciences, Tehran, Iran
2 Student Research Committee, School of Dentistry, Shaid Beheshti University of Medical Sciences, Tehran, Iran
3 Department of Prosthodontics, Faculty of Dentistry, AJA University of Medical Sciences, Tehran, Iran
4 Department of Prosthodontic, School of Dentistry, Tabriz University of Medical Sciences, Tabriz, Iran

Correspondence Address:
Fatemeh Bakhtiari
Department of Prosthodontic, School of Dentistry, Tabriz University of Medical Sciences, Tabriz
Iran

Aim: This study assessed the validity and reliability of color selection by smartphone photography using two smartphone applications and Adobe Photoshop software. Settings and Design: In vitro comparative study. Materials and Methods: The validity and reliability of dental tooth shade recognition (DTSR), Chromatcher, and Adobe Photoshop were evaluated for color selection of shade tabs. The iPhone 7 camera in automatic mode was used for photography. Images were captured using Smile Lite with/without polarized filter and with camera flash. To assess the reliability, nine Vita Lumin Vacuum shade tabs were chosen and each was photographed for 10 times using Smile Lite. The reliability of DTSR, Chromatcher, and Photoshop in shade-taking was calculated. To assess their validity, 16 shade tabs of Vita Lumin Vacuum and 26 shade tabs of Vita 3D Master were photographed using the aforementioned lighting conditions. The color of photographs was calibrated and shade-taking was performed and compared with the shade suggested by SpectroShade as reference. Statistical Analysis Used: Data were analyzed using Two-way analysis of variance and Bonferroni post hoc test. Results: The reliability of Photoshop, DTSR, and Chromatcher was 98.88%, 63.3%, and 100%, respectively. The validity of Photoshop was significantly higher than other software programs (P < 0.05). Chromatcher had higher validity than DTSR (P < 0.05). Conclusion: Shade-taking by calibrated smartphone pictures and Adobe Photoshop has high validity and reliability.


How to cite this article:
Mohammadi A, Bakhtiari Z, Mighani F, Bakhtiari F. Validity and reliability of tooth color selection by smartphone photography and software applications.J Indian Prosthodont Soc 2021;21:281-286


How to cite this URL:
Mohammadi A, Bakhtiari Z, Mighani F, Bakhtiari F. Validity and reliability of tooth color selection by smartphone photography and software applications. J Indian Prosthodont Soc [serial online] 2021 [cited 2022 Sep 27 ];21:281-286
Available from: https://www.j-ips.org/article.asp?issn=0972-4052;year=2021;volume=21;issue=3;spage=281;epage=286;aulast=Mohammadi;type=0