The second molars malocclusions are quite common disorder in clinic. They can cause some troubles for orthodontists.

第二磨牙的错牙合在临床上十分常见，给临床矫治带来不少麻烦。

youdao

The second molars malocclusions are quite common disorder in clinic. They can cause some troubles for orthodontists.

第二磨牙的错牙合在临床上十分常见，给临床矫治带来不少麻烦。

youdao