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Methods of dental shade determination

Serban, Christa, Nteroli, Gianni, Craciunescu, Emanuela L., Negrutiu, Meda Lavinia, Serban, Helmine, Duma, Virgil-Florin, Bradu, Adrian, Podoleanu, Adrian G. H., Sinescu, Cosmin, Rechmann, Peter, and others. (2022) Methods of dental shade determination. In: SPIE BIOS Proceedings. Lasers in Dentistry XXVIII. 11942. (doi:10.1117/12.2606721) (KAR id:93550)


Dental shade determination and seamless integration of restorative work in the oral cavity are challenging and important tasks in the everyday clinical dental practice. The aim of this in-vitro study was to evaluate comparatively the capability of software-based color analysis of mobile phone photography, with the spectrophotometric and visual methods for dental shade determination. Visual shade determination of the incisal, middle, and cervical thirds parts of ten extracted human teeth was performed using the Vita Classical and Vita 3D Master stock shade guides. Shade determination of the thirds of each tooth was performed using the Vita Easyshade spectrophotometer. Subsequently, photographs of each tooth were captured using a mobile phone camera. Color charts were produced using an in-house image processing technique, and the tooth color captured by the mobile phone photography was matched to the shade guides. The results show that the camera-based method had better agreement with the spectrophotometric and visual methods when the Vita Classical shade guide was employed. Software-based color analysis of mobile phone photography should be further explored for its use as an affordable potential tool for increasing objectivity and accuracy in dental shade determination.

Item Type: Conference or workshop item (Paper)
DOI/Identification number: 10.1117/12.2606721
Projects: Biological Sciences Research Council (BBSRC), “5DHiResE” project, European Union’s Horizon 2020 research and innovation program under the Marie Sklodowska-Curie grant NETLAS (agreement No 860807), National Institute for Health Research Biomedical Research Centre at Moorfields Eye Hospital NHS Foundation Trust (NIHR), UCL Institute of Ophthalmology, University College London (AP) and the Royal Society Wolfson research merit award
Uncontrolled keywords: tooth color, shade selection, mobile phone photography, color maps, spectrophotometer, restorative dentistry
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA1520 Applied optics. Photonics
Divisions: Divisions > Division of Natural Sciences > Physics and Astronomy
Depositing User: Adrian Bradu
Date Deposited: 11 Mar 2022 09:36 UTC
Last Modified: 14 Mar 2022 10:07 UTC
Resource URI: (The current URI for this page, for reference purposes)

University of Kent Author Information

Nteroli, Gianni.

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Bradu, Adrian.

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Podoleanu, Adrian G. H..

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