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Journal of Dental Research
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Clinical Assessment of Oral Malodor by the Electronic Nose System

M. Tanaka1,*, H. Anguri1, A. Nonaka1, K. Kataoka1, H. Nagata1, J. Kita2 and S. Shizukuishi1

1 Department of Preventive Dentistry, Graduate School of Dentistry, Osaka University, 1-8, Yamadaoka, Suita, Osaka 565-0871, Japan; and
2 Analytical Instruments Division, Shimadzu Corporation;


Figure 1
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  		Figure 1. The mean concentrations of H2S, CH3SH, and CH3SCH3 were measured by gas chromatography and the plots compared with the mean of each finding (log Rpeak/Rbase) from the 6 electronic sensors (• sensor 1, {blacksquare} sensor 2, {blacktriangleup} sensor 3, sensor 4, {square} sensor 5, {circ} sensor 6) (A), as well as mean VSC concentrations estimated with the electronic nose in top-note mode (B).

 

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  		Figure 2. Correlations between actual organoleptic scores and top-note scores with an electronic nose (A) and log VSC by gas chromatography (B). ROC plots comparing top-note scores and log VSC data used for classifying subjects with or without an actual organoleptic score of ≥ 2.0 (C).

 

Journal of Dental Research, Vol. 83, No. 4, 317-321 (2004)
DOI: 10.1177/154405910408300409
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