Abstract: Objective: To study the color of Hazakh younth and Han people younth anterior teeth in color. Methods: Maxillary anterior teeth of 18-22 years old Hazakh younth and Han people younth were included. Color analysis system of digital camera and computer were used to measure the color of maxillary anterior teeth. Results: The light degree of color analysis of maxillary anterior teeth from incisor to fangs were decreased gradually in 18 to 22 years old young hans and kazaks in Urumqi. Significant differences among groups P<0.05. The degree of saturation were increased gradually. Significant differences among groups P<0.05. The light values of Hans were higher than Hazakhs, and the degree of saturation were lower than Hazakhs in incisor (P<0.017). Both light degree and saturation degree in Hans were less than Hazakhs younth in second incisor and fangs (P<0.017). Conclusion: The colored degree of maxillary anterior were different between Hazakhs younth and Hans people younth. The experiment results will give more match between Repair materials and natural teeth.

Key words: Hazakh younth , Anterior teeth , Color