Subject: Basic medicine
Subject: Clinical medicine
Subject: Health biotechnology
Subject: Health sciences
Subject: Other medical sciences
Year: 2026
Type: Article
Type: PeerReviewed
Title: Spectrophotometric evaluation of natural tooth color distribution across three dental shade guide systems: A cross-sectional study
Author: Zarkova, Julija
Author: Zlatanovska, Katerina
Author: Prosheva Pelivanova, Ljubica
Author: Atanasova, Sandra
Author: Nikolovski, Bruno
Author: Longurova, Natasa
Author: Apostoloski, Pavle
Abstract: Accurate determination of tooth color is essential for achieving optimal esthetic outcomes in restorative dentistry. Spectrophotometry has emerged as a reliable method for objective color assessment, overcoming the limitations of visual shade selection. This study aimed to evaluate the distribution of natural tooth color using spectrophotometric measurements, to compare its representation across three dental shade guide systems, and to assess its variation according to gender and age. A total of 235 participants aged 18–69 years were included in this cross-sectional study. Tooth color of maxillary central incisors was measured using a non-contact spectrophotometer (ShadePilot). The obtained values were matched to VITA Classical, Ivoclar Chromascop, and VITA 3D-Master shade guides. Statistical analysis was performed using the Pearson Chi-square test (p < 0.05). Shades from Group A (VITA Classical), Group 100 (Chromascop), and Group 2 (VITA 3D-Master) were the most prevalent. Significant differences in shade distribution were observed across all three systems. Both gender and age showed statistically significant influence on tooth color (p < 0.05), with a clear trend toward darker shades in older age groups. Natural tooth color distribution varies depending on the shade guide system used and is significantly influenced by demographic factors. Spectrophotometric analysis provides a reliable approach for improving shade selection and enhancing esthetic outcomes in clinical practice. Keywords: Tooth color; Spectrophotometry; Shade guides; Esthetic dentistry
Publisher: European Scientific Institute with support from ,,Egalite” – Society for equal opportunities
Relation: https://eprints.ugd.edu.mk/38540/
Identifier: oai:eprints.ugd.edu.mk:38540
Identifier: https://eprints.ugd.edu.mk/38540/1/ESI%20Journal.pdfIdentifier: https://eprints.ugd.edu.mk/38540/2/21038-Article%20Text-60979-1-10-20260519.pdfIdentifier: Zarkova, Julija and Zlatanovska, Katerina and Prosheva Pelivanova, Ljubica and Atanasova, Sandra and Nikolovski, Bruno and Longurova, Natasa and Apostoloski, Pavle (2026) Spectrophotometric evaluation of natural tooth color distribution across three dental shade guide systems: A cross-sectional study. European Scientific Journal, 53 (1). pp. 756-770. ISSN 1857- 7431
