Objective
We sought new markers to predict oral malodor.
Study Design
Seventy-five adults complaining of oral malodor were classified into 3 groups clinically:
no oral malodor, physiologic oral malodor, and periodontitis-derived oral malodor.
In addition to conventional clinical parameters, 7 salivary components, occlusal force,
and lip-closing force were compared among the groups.
Results
Concerning the salivary components, cariogenic bacteria, occult blood, leukocytes,
and ammonia differed significantly among the groups. Multiple logistic regression
analyses indicated that tongue-coating scores and ammonia levels were significantly
associated with genuine oral malodor, including physiologic oral malodor and periodontitis-derived
oral malodor, and the tongue-coating score, plaque index, and occult blood level were
significantly associated with periodontitis-derived oral malodor. Occlusal force and
lip-closing force did not differ among the groups. However, there was a statistically
significant interaction between occlusal force and lip-closing force in oral malodor
in women (P = .019).
Conclusions
Novel salivary markers, ammonia levels, and occult blood levels may predict genuine
oral malodor and periodontitis-derived oral malodor, respectively. An interaction
effect between occlusal force and lip-closing force on oral malodor was identified
in women.
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Article info
Publication history
Published online: October 17, 2020
Accepted:
September 9,
2020
Received in revised form:
August 31,
2020
Received:
June 27,
2020
Identification
Copyright
© 2020 Elsevier Inc. All rights reserved.
