An oral health survey for 4,463 students (11, 12, 13,14 age) of 4 junior high school representative 29 districts - Ha Noi after Reunification the results of the oral health: The rate of decay tooth of students is 17.04 percent
12 age 15.31 percent
The rate of gingivitis of students is 14.59 percent
12 age is 15.40 percent
- DMF of pupil is 0.47
12 age is 0.4
14 age is 0.58. The tooth decay is high but the filled tooth rate was low. The rate complication of decay tooth is 11.5 percent.