Relationship of Oral Health Knowledge, Behavior and Status with Self-Perceived and Clinical Oral Malodor among Dental Patients

Oral malodor, also known as halitosis or bad breath, is a common problem worldwide and is associated with social embarrassment, anxiety and psychological depression [1]. Therefore, oral malodor has a negative impact on quality of life. Oral malodor is reported to be the third most frequent reason for people to seek dental care, behind dental caries and periodontal diseases [2]. The prevalence of oral malodor varies by country. Previous research has reported that about 30% to 50% of the population present with the oral malodor [3-5]. Oral malodor can be detected by the organoleptic test, that is regarded as a gold standard [1]. Alternatively, it can be examined by using sulfide monitoring equipment such as the Halimeter®, Breathtron®, Oral Chroma® and Gas chromatography [6].