Dental caries and associated factors among adolescents aged 12 to 15 in Jiangxi Province, China.

Background: The purpose of this survey was to examine the association of general characteristics, oral health knowledge, attitudes, behavior, and dental caries status among adolescents in Jiangxi Province and to provide a basis for future prevention of dental caries among middle school students.

Methods: A total of 8,160 adolescents aged 12 to 15 years were invited to participate in this survey by a stratified random cluster sampling method from 30 schools in five counties in Jiangxi Province. A self-administered questionnaire was used to understand their basic characteristics, including oral health behaviors, knowledge, and attitudes.

[Prevalence of malocclusion among 5 387 12- to 14-year-old adolescents in Jiangxi province, China: an epidemiological study].

Objective: We provided baseline data for oral public health through epidemiological surveys to investigate the prevalence of malocclusion and orthodontic treatment proportion in 12- to 14-year-old adolescents in Jiangxi province, China.

Methods: Multi-stage random cluster sampling was used. A total of 5 387 12- to 14-year-old adolescents were examined by three professional dentists according to Angle's classification of malocclusion.