Color analysis of 1944 anterior teeth of people in southwest of China -- The effects of age on tooth color
- VernacularTitle:西南地区中国人上下颌前牙冠颜色与年龄关系
- Author:
Hong ZHU
;
Yayan LEI
;
Ningfang LIAO
- Publication Type:Journal Article
- Keywords:
Crowns;
Color;
Age;
Measurement
- From:
Journal of Practical Stomatology
2000;0(05):-
- CountryChina
- Language:Chinese
-
Abstract:
砄bjective:To analyse the effects of age on the color of natural tooth crown. Methods: The color of 1 944 health anterior teeth of 162 chinese people aged 20 to 73 years old was measured with a fiber optic spectrophotometry system. CIE 1976 L *a *b * and CIE 1931XYZ were applied to analyse the color mesurements. Results:The results showed that in three section of teeth(incisor, midlle, cervical) the values of L * and a *were negativly correlated to aging, that of b * was positively just at cervical and midlle sites. The value of b * was not related to age at incisal site of teeth. Conclusion: The values of L * and a * are related to age negatively.
