四环素类药物,如四环素、土霉素、强力霉素等能与正在发育牙齿里的钙相结合,形成一种荧光物质,这种荧光物质氧化后就变成黄褐色或浅棕色,使牙齿发黄,造成釉质发育不全,俗称“四环素牙”。据1984年卫生部调查,仅上海青少年“四环素牙”发病就高达50％。因此,了解和掌握其成因,积极的 Tetracycline drugs such as tetracycline, oxytetracycline, doxycycline and other calcium in the development of teeth can be combined to form a fluorescent material, the fluorescent material becomes oxidized brown or light brown, so that the teeth Yellow, causing enamel hypoplasia, commonly known as “tetracycline tooth.” According to a survey conducted by the Ministry of Health in 1984, only the incidence of tetracycline tooth in Shanghai youth was as high as 50%. Therefore, understand and master its causes, positive