目的: 评价牙得安牌复方中草药牙粉对正畸患者牙周组织的影响.Objective : To investigate the clinical effective of treatment for gingivitis by YADRAN herbal tooth powder....

“牙粉”的拼音为：yá fěn...

“牙粉”的英语可以翻译为：tooth powder，dentifrice ...