Spectrophotometric Evaluation of Anterior Maxillary Tooth Color Distribution According to Age and Gender

J Prosthodont. 2019 Jan;28(1):e96-e102. doi: 10.1111/jopr.12783. Epub 2018 Mar 13.

Abstract

Purpose: To determine the effects of age and gender on the color distribution of the right maxillary central, lateral incisors, and canine teeth.

Materials and methods: The tooth color was measured using the VITA Easyshade V spectrophotometer with a total of 202 volunteers (89 men, 113 women). The age distribution in this study was between 15 and 70 years old (average: 31). A grey background color was used to prevent background reflection while performing the color measurements.

Results: According to the VITAPAN Classical shade guide, the tooth color distribution of the central and lateral incisors showed a maximum of A2, with a maximum of B3 for the canine teeth. When comparing the International Commission on Illumination L* , a* , and b* values (CIELab color space coordinates) of the teeth with subject gender, statistically significant differences were not found between gender and the L* and b* values (p > 0.05); however, a statistically significant difference was observed between gender and the a* values (p < 0.05).

Conclusion: When the distribution ratio of tooth color was examined, different ratios were determined based on gender and age and between the maxillary central, lateral incisors, and canine teeth. A uniform tooth color should not be chosen for anterior restorations, and factors such as gender and age should be considered when making a color selection for patients.

Keywords: Color analysis; spectrophotometry; tooth color measurement.

MeSH terms

  • Adolescent
  • Adult
  • Age Factors
  • Aged
  • Color
  • Cuspid / anatomy & histology
  • Female
  • Humans
  • Incisor / anatomy & histology
  • Male
  • Maxilla
  • Middle Aged
  • Sex Factors
  • Spectrophotometry
  • Tooth / anatomy & histology*
  • Tooth Discoloration / diagnosis
  • Young Adult