摘要
口臭(oral malodor)是口腔呼出來令人感覺不舒服味道的統稱。有許多的原因會造成口臭，包括口內口外的因素；像牙齦炎、牙周病、鼻子感染、慢性鼻竇炎、糖尿病、肝功能不全、肝硬化、尿毒、肺膿瘍、鼻腔後方黏液滴落入口中等等，都已經證實和口臭有關。然而，臨床上的調查，顯示大約90%的口中異味來源為口腔。本篇文章主要是要藉由探討『口臭』形成的原因、來源、治療的方式，提供臨床醫師對口臭的瞭解。
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口臭並列摘要
Halitosis (oral malodor) is a general term used to describe an offensive odor emanating from the oral cavity. A number of factors, both intra- and extra-oral, such as gingivitis, periodontitis, nasal inflammation, chronic sinusitis, diabetes mellitus, live insufficiency, cirrhosis, uraemia, lung carcinoma and post-nasal drip have been identified. Clinical survey have shown that around 90% of all bad breath odor originate in the mouth. This article intends to provide an overview on the etiology and treatment of halitosis for dentists' better understanding.