中新网9月11日电 卫生部今日就2012年全国“爱牙日”活动有关情况举行新闻发布会，针对洗牙有无负面作用的问题，北大口腔牙周科主任栾庆先表示：“洗牙不但是文明行为，也是一个健康的行为”。

Beijing on September 11, 2012 national health ministry today"Love teeth day"The activities held a press conference,According to the problem of cleaning without negative effect,North oral periodontal section head LuanQingXian said:"Cleaning not but civilization behavior,Is also a healthy behavior".

　　栾庆先介绍称，牙周疾病是造成牙齿松动或者牙齿缺失的主要原因，而菌斑和牙石是牙周病的主要原因，清除牙石是预防牙周病的有效手段。

LuanQingXian introduction says,Periodontal disease is a loose teeth missing teeth or the main reason,And dental plaque and tartar is the main cause of periodontal disease,Clear tartar is an effective means of periodontal disease prevention.

　　“很多人对于洗牙有很多误区，认为洗牙有害，并不是这样”，栾庆先说，“我们知道洗脸是文明行为，洗牙不但是文明行为，也是一个健康的行为。”(据中国网文字直播整理)

"Many people have a lot of errors for cleaning,Think cleaning harmful,And not so",LuanQingXian said,"We know that wash a face is civilized behavior,Cleaning not but civilization behavior,Is also a healthy behavior."(According to China text live finishing)