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BMC Oral Health

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Open Access 01-12-2017 | Research article

Resting salivary flow independently associated with oral malodor

Authors: N. Suzuki, A. Fujimoto, M. Yoneda, T. Watanabe, T. Hirofuji, T. Hanioka

Published in: BMC Oral Health | Issue 1/2017

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.

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Title: Resting salivary flow independently associated with oral malodor
Authors: N. Suzuki
A. Fujimoto
M. Yoneda
T. Watanabe
T. Hirofuji
T. Hanioka
Publication date: 01-12-2017
Publisher: BioMed Central
Published in: BMC Oral Health / Issue 1/2017
Electronic ISSN: 1472-6831
DOI: https://doi.org/10.1186/s12903-016-0255-3

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Resting salivary flow independently associated with oral malodor

Abstract

Background

Methods

Results

Conclusion

At a glance: The ONWARDS insulin icodec trials

Springer Medicine

Abstract

Background

Methods

Results

Conclusion

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