四环素族药物大量应用于临床以来,引起牙齿着色和釉质发育不全等,已逐渐被人们重视,现将我院对本市两所中学,一所大学483名学生随机作的四环素牙症抽样调查中学生13～19岁和大学生20～26岁在自然光下肉眼检查。结果:受检483人患病223人,总检出率46.17％,其中男患占52.14％,女患占47.86％。经统计学处理检出率与性别无显著性差异;年龄与病例关系见表1。三牙位与四环素牙症关系见表2。 Tetracycline drugs are widely used in clinical since the cause of tooth coloring and enamel hypoplasia, etc., has gradually been valued, now our hospital on the city two secondary schools, a university 483 students randomized tetracycline dentistry sample survey students 13 ~ 19 years old and college students 20 ~ 26 years under natural light naked eye examination. Results: Of the 483 subjects who were tested, 223 were affected, with a total detection rate of 46.17%, of which 52.14% were male patients and 47.86% were female patients. The statistical analysis of the detection rate and gender no significant difference; age and case in Table 1. Three teeth and tetracycline dental relationship shown in Table 2.