近年来,儿童和青少年的口腔卫生保健及人们对面部美观的重视程度越来越高,关注的年龄层次也越来越年轻化。但是,即使在口腔预防医学较为发达的国家,口腔保健意识和颌面部美观知识的普及也不尽如人意。日本卫生管理部门统计发现,尽管64%的日本人曾有过牙齿或牙龈的不适,但只有26%找口腔医生就诊过~([1])。以色列阿拉伯青少年的口腔保健知识较差,只有35%的儿童选用含氟牙膏~([2-4])。本研究拟 In recent years, children’s and adolescents’ oral health care and people’s emphasis on facial appearance have been getting higher and higher, and the age groups concerned have also been getting younger and younger. However, the popularity of oral health care and maxillofacial aesthetic knowledge is unsatisfactory even in countries where oral preventive medicine is more developed. Statistics from Japan’s health authorities found that only 26% of those Japanese doctors visited dentists or gums, although 64% of Japanese had gum or tooth discomfort (1). Arab teenagers in Israel have poor oral health knowledge and only 35% of children use fluoride toothpaste ([2-4]). This study is intended