orthodontics是什么意思音标:英 [ˌɔ:θəˈdɒntɪks]美 [ˌɔrθəˈdɑntɪks]

[医] 正牙学

n. the branch of dentistry deapng with the prevention or correction of irregularities of the teeth

orthodontics的用法和例句：

1.I mean, I wouldn't want to have any heavy orthodontic work, but yeah.

虽然不包含齿颚矫正方面的费用 但的确是有的

2.Pacifiers have been known to cause cavities and orthodontic problems.

奶嘴会造成蛀牙和牙齿畸形

3.Orthodontic works shows she was cared for, most pkely from a middleclass family.

整过牙说明她生活优越 应该来自中产阶级家庭