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[The prevalence of orthodontic treatment need in Urumqi Han's adolescent]
Cong-bo Mi1, Xue-lan Fan, Ying Tian
1Dept. of Orthodontics, Urumqi Stomatological Hospital, Xin Jiang Medical Univercity, Urumqi 830002, China.
Objective:
To assess the severity of malocclusion and the need for orthodontic treatment in Urumqi Hans' adolescent.
Methods:
562 children aged from 11-19 years old were chosen randomly and were investigated. The severity of malocclusion and the need for orthodontic treatment were assessed using the Malocclusion Severity Index (MSI, Hill PA 1992).
Results:
The MSI scores for this population were 21.91 +/- 17.09 in male and 22.28 +/- 17.26 in female, respectively, there were no significant differences between sexes (P > 0.05). According to the classifications of MSI scores, the rates of the need for orthodontic treatment were 54.55% in male and 55.40% in female.
Conclusions:
(1) The rates of orthodontic treatment need in Urumqi Hans' adolescent were highly frequent. (2) The MSI is a simple precise valid index for assessing the orthodontic Treatment Need. It is suggested to be used widely.
