[Juvenile periodontitis survey in 9548 middle school students at Huangpu District in Shanghai].
OBJECTIVE
9548 middle school students from 11-19 age at Huangpu District in Shanghai were investigated to study the prevalence of juvenile periodontitis(JP). The purpose of the present study was to discover JP at early stage and make correct diagnosis, so the patients can be treated on time.


METHODS
From January 2001 to April 2001, debris index(DI), calculus index(CI), sulcus bleeding index(SBI) and community periodontal index for treatment needs (CPITN) were examined in each student.


RESULTS
In 9548 investigated (4739 males and 4809 females), prevalence of JP was 0.76%, the ratio of males to females was 1:1.03 (P<0.05). With aging, the detectable rate of gingival bleeding and calculus was increasing, the prevalence of JP was also increasing.


CONCLUSIONS
Since the new classification system of periodontal disease was established, the above cases are worth reevaluating. We should also enhance oral hygiene of the young people.
Hu
Chun-zhen
CZ
Department of Oral Medicine, Ninth People's Hospital, Shanghai Second Medical University, Shanghai 200011, China.
Liu
Guo-liang
GL
Li
De-yi
DY
Xu
Pei-yun
PY
Wang
Jun
J
Zhao
Jun-jun
JJ
Zhang
Bin
B
Ye
Jun
J