Bad Breath
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[펌] Bad Breath Research by Mel Rosenberg, PhD.카테고리 없음 2007. 6. 14. 18:39
출처: http://www.tau.ac.il/~melros/bda/index.html July 1996 Bad breath (halitosis) is a common problem which often comes from the activity of bacteria in the mouth. Although there is no way of knowing for sure, most adults probably suffer from bad breath occasionally, with perhaps a quarter suffering on a regular basis. This fact file looks at the causes and at what dentists can do to help. Is bad..