Abstract：
BACKGROUND:Dryness of the oral cavity is considered one cause of oral malodor. However, it is unclear which of the factors regulating the wetness of the oral cavity are involved in oral malodor development. This study investigated the effects of salivary flow and oral mucosal moisture on oral malodor. METHODS:The study population comprised 119 patients (48 men and 71 women, mean age of 50.6 ± 15.4 years) with complaint of oral malodor. After the oral malodor level had been evaluated by the organoleptic test and gas chromatography, the rates of stimulated saliva and resting saliva and the moisture levels of the tongue and buccal mucosa were measured. The plaque index, bleeding on pocket probing, probing pocket depth, and tongue coating score were also assessed. Strong oral malodor was defined as an organoleptic test score of ≥3. RESULTS:The flow rate of resting saliva in women was significantly lower than in men. The flow rate of resting saliva and the moisture levels of the tongue and buccal mucosa showed significant negative correlations with age. The flow rate of resting saliva was significantly lower in patients with strong oral malodor than in those with no or weak oral malodor. The flow rate of stimulated saliva and the moisture levels of the tongue and buccal mucosa had no relationship with strong oral malodor. Logistic regression analysis showed that a ≥5-mm probing pocket depth with bleeding on pocket probing, an increased tongue coating score, and decreased resting salivary flow were strong explanatory factors in clinical findings for oral malodor. CONCLUSION:This study suggests that the flow rate of resting saliva is a significant modulating factor for oral malodor.
journal_name
BMC Oral Healthjournal_title
BMC oral healthauthors
Suzuki N,Fujimoto A,Yoneda M,Watanabe T,Hirofuji T,Hanioka Tdoi
10.1186/s12903-016-0255-3subject
Has Abstractpub_date
2016-07-19 00:00:00pages
23issue
1issn
1472-6831pii
10.1186/s12903-016-0255-3journal_volume
17pub_type
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