作者调查了86名囊性纤维瘤病人,其中男性47名,女性39名,年龄3.3—24.2岁(平均11.8岁),其牙齿的情况如下: 一、四环素着色:共发生21名(占24.4%),其中乳前牙占4.5%,乳磨牙占11.4%,恒前牙占43.2%,恒磨牙占40.9%。着色程度:灰色占62.6%,黄色占27.8%,棕色占9.6%。21例中牙釉质缺损者5例(23.8%)。以上调查所见较过去学者报导的为低,可能与药物的剂量、剂型及用药时间有关。有人认为牙釉质发育不全是由于代谢 The authors investigated 86 patients with cystic fibromatosis, 47 males and 39 females, aged 3.3-24.2 years (mean 11.8 years) with teeth as follows: 1. Tetracycline staining: A total of 21 (24.4% ), Of which 4.5% were anterior teeth, 11.4% were primary molars, 43.2% were permanent anterior teeth, and 40.9% were permanent molars. Coloring degree: gray accounted for 62.6%, yellow accounted for 27.8%, brown accounted for 9.6%. There were 5 cases (23.8%) of enamel defects in 21 cases. The above findings than the previous scholars reported as low, may be related to the dose of the drug, dosage forms and medication time. Some people think that enamel hypoplasia is due to metabolism