Nhận xét một số đặc điểm hình thái nhóm răng trước hàm trên ở một số nhóm học sinh người Việt Nam tuổi từ 15 đến 17

Research objective: The study was conducted on 146 Vietnamese students aged 15-17 at The Chu Van An High School in 2012-2013 Hanoi. The aims of this study was to describe some morphological characteristics of maxillary anterior teeth group. Research methodology: cross-sectional descriptive, all of subjects was taken the dental impression, make the plaster dentition model and messure some of teeth size. Results: The average dimension at largest detour of central incisor Is accounted 8.55 + or - 0.52 mm, lateral Incisor : 6.90 + or - 0.51 mm, canines: 7.86 + or - 0.49 mm ... Conduslons: the rate of central indsor shape is often the square, the mesio-distal dimension at largest detour and height of the crowns of male is larger female, the index of crowns width of female is greater male...