Chinese Journal of Tissue Engineering Research ›› 2012, Vol. 16 ›› Issue (38): 7216-7220.doi: 10.3969/j.issn.2095-4344.2012.38.035

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Relationship of the chroma value of dental fluorosis with age and gender in the Guizhou residents

Liao Jian1, 2, Liang Xing2, Tian Ai2, Zang Cheng-cheng2, Mao Ling1, Wang Yong1   

  1. 1Department of Prosthodontics, Affiliated Hospital of Guiyang Medical College, Guiyang 550004, Guizhou Province, China
    2Department of Prosthodontics, West China College of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China
  • Received:2012-05-20 Revised:2012-06-10 Online:2012-09-16 Published:2012-09-16
  • Contact: Wang Yong, Professor, Master’s supervisor, Department of Prosthodontics, Affiliated Hospital of Guiyang Medical College, Guiyang 550004, Guizhou Province, China wangyong8383@ 163.com
  • About author:Liao Jian☆, Studying for doctorate, Lecturer, Attending physician, Department of Prosthodontics, Affiliated Hospital of Guiyang Medical College, Guiyang 550004, Guizhou Province, China; Department of Prosthodontics, West China College of Stomatology, Sichuan University, Chengdu 610041, Sichuan Province, China dentistliaojian@ yahoo.cn

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Abstract:

BACKGROUND: A large number of studies at home and broad have shown that the color of teeth will be changed as age increases.
OBJECTIVE: To analyze the relationship of the chroma value of dental fluorosis with age and gender.
METHODS: A total of 317 dental fluorosis patients with 634 maxillary central incisors were randomly selected from the endemic fluorosis residents in Guizhou Province. The L*, a* and b* (brightness, hue, chroma) values of the teeth were measured by a computer-aided Shade-Eye NCC colorimeter, and the data were analyzed with SPSS 15.0 software.
RESULTS AND CONCLUSION: ①There was a significant difference in the chroma value of dental fluorosis between male and female (P < 0.01). The value of L* in male was slightly lower than that in female, while the values of a* and b* in male were higher than that in female. ②There was a significant difference in chroma values among different ages (P < 0.05). There was a negative correlation between the value of L* and age, while the values of a*, b* and age showed a positive correlation. These results suggest that there is a difference in the chroma value of dental fluorosis between different genders and ages. Compared with female, male tooth color of dental fluorosis is darker, redder and yellower, besides, tooth color will be darker and yellower gradually as age increases.

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