| Title | Clinical assessment of oral malodor intensity expressed as absolute value using an electronic nose. | | Author(s) | Nonaka A, Tanaka M, Anguri H, Nagata H, Kita J, Shizukuishi S | | Institution | Department of Preventive Dentistry, Osaka University Graduate School of Dentistry, Osaka, Japan | | Source | Oral Dis 2005.:35-6. | | Abstract | OBJECTIVES: In our previous study, scores determined via a multiple linear regression method (EN-MLR) involving an electronic nose provided objective halitosis-related measurements; however, this model afforded only relative expression exclusively. The objective of this investigation was to assess clinically oral malodor intensity expressed as an absolute value using an electronic nose.Subjects and methods: Sixty-six subjects were evaluated based on results of an actual organoleptic test (OLT), measurements of volatile sulfur compound (VSC) concentrations, a score representing malodor intensity (EN-MI) as the absolute value and EN-MLR measured with an electronic nose system. Oral health parameters were also examined.
RESULTS: The OLT score served as a benchmark. The area under the receiver-operating characteristic (ROC) plots of EN-MI score (0.975) was significantly larger than that of log VSC (0.896) (P = 0.036); however, the area did not differ significantly from that of EN-MLR score (0.932). Percentage of teeth with pocket depth greater than or equal to 4 mm, tongue coating score and plaque control record displayed meaningful association with EN-MI score in multiple logistic regression analyses.
CONCLUSION: Oral malodor intensity expressed as an absolute value employing an electronic nose may be a suitable method for clinical evaluation of oral malodor. | | Language | eng | | Pub Type(s) | Journal Article
| | PubMed ID | 18557215 |
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