Differences of Tooth Colorimetric Parameters L*a*b* Depended on Age


  • Teuta Pustina Krasniqi Rectorate of the University of Prishtina, Vice Rector for Quality Assurance and Development; Medical Faculty, University of Prishtina, Prosthetic Dentistry, Dental Branch, Prishtina, Kosovo
  • Zana Lila-Krasniqi
  • Nexhmije Ajeti University Clinical Center Prishtina - QKSUK, Endodontic, Prishtina, Kosovo
  • Kujtim Shala
  • Teuta Bicaj
  • Linda Dula University Clinical Center Prishtina - QKSUK, Prosthodontics, Prishtina, Kosovo




Colorimetric Parameters, Bleaching, Esthetics, Spectrophotometer, Teeth colour


AIM: The study aimed to analyse differences in colourimetric parameters L*a*b*, depended on age.

MATERIAL AND METHODS: In this study were included 255 subjects with age interval from 20 to 49 years. The subjects were divided into three groups, as follows: in the younger group were 20 to 29 years of age, those in the middle group 30 to 39 years and older group 40 to 49 years. The overall number of analysed teeth in the intercanine sector of the maxilla was 2295. The colour of the teeth was measured using the spectrophotometer VITA Easyshade.

RESULTS: The results for differences in the colourimetric parameters in relation with age were tested with Pearson Chi-square (c2). For c 2 = 572, 87 and df = 124 there was a statistical significant difference between the ages P < 0.001.

CONCLUSION: In this study, it was concluded that the parameter L* - Lightness was decreasing when age increased. In the age group, 20 to 29 years L* was 83.2, whereas in the older group of this investigation; 40 to 49 years was 79.4. In the youngest group, the parameter a* was - 0.7, whereas with increasing of age this parameter was -0.5. The values for parameter b* from the youngest to the older group were from 21.7 to 23.9.


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How to Cite

Pustina Krasniqi T, Lila-Krasniqi Z, Ajeti N, Shala K, Bicaj T, Dula L. Differences of Tooth Colorimetric Parameters L*a*b* Depended on Age. Open Access Maced J Med Sci [Internet]. 2017 Oct. 7 [cited 2023 Mar. 31];5(6):777-80. Available from: https://oamjms.eu/index.php/mjms/article/view/oamjms.2017.155



D - Dental Sciences

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