Related Experiment Video
Updated: Jul 6, 2026
Therapeutic Effectiveness of a Dietary Supplement for Management of Halitosis in Dogs
Published on: July 6, 2015
Clinical oral malodor measurement with a portable sulfide monitor
M Ueno1, K Shinada, T Yanagisawa
1Department of Oral Health Promotion, Graduate School, Tokyo Medical and Dental University, Tokyo, Japan. ueno.ohp@tmd.ac.jp
Objective:
The aim of this study was to evaluate the clinical ability of Breathtron by comparing it with other malodor measurement procedures: the organoleptic test (OT) and gas chromatography (GC).
Subjects And Methods:
Patients were 475 patients who visited a fresh breath clinic. Oral malodor was measured with the OT, GC, and Breathtron. Correlation analysis and two linear regression analyses were conducted to examine the relationship of the Breathtron values with OT scores and volatile sulfide compound (VSC) concentrations by GC: i.e. the regression of Breathtron on OT and the regression of Breathtron on total VSCs by GC. Receiver operating characteristics (ROC) analysis was conducted to investigate the sensitivity and specificity of Breathtron.
Results:
The Breathtron values were significantly correlated with OT and VSCs by GC. In the regression analysis, predicted Breathtron values were 199.3 and 520.1 ppb for OT scores 1 and 2, and reasonably close to total VSCs by GC between 550 and 750 ppb. The ROC analysis demonstrated that Breathtron is a useful and valuable adjunct measurement tool.
Conclusions:
Breathtron is a simple, rapid and reliable appliance for screening oral malodor if an appropriate malodor threshold level is chosen.
Related Concept Videos
01:26Assessment of the Mouth
Mouth Inspection
The inspection begins with visually examining the mouth for symmetry, color, and size.
01:14Assessing Body Temperature - Oral
Step 1:
Start by practicing proper hand hygiene to prevent the spread of microorganisms.
Step 2:
Take the thermometer out of the charging unit, switch it on, and wait for the ready sign.
Step 3:
Gently slide the probe cover until a click is heard. This simple action prevents cross-contamination and ensures the correct placement of the probe cover.
Step 4:
Instruct the patient to open their mouth and place...