Oral medicine| Volume 116, ISSUE 2, P203-209, August 2013

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Turbidity of mouthrinsed water as a screening index for oral malodor


      The objectives of this research were to examine the relationship between turbidity of mouthrinsed water and oral malodor, and to evaluate whether the turbidity could be used to screen oral malodor.

      Study design

      The subjects were 165 oral malodor patients. Gas chromatography and organoleptic test (OT) were used for oral malodor measurement. Oral examination along with collection of saliva and quantification of bacteria was conducted. Turbidity of mouthrinsed water was measured with turbidimeter. Logistic regression with oral malodor status by OT as the dependent variable and receiver operating characteristic (ROC) analysis were performed.


      Turbidity had a significant association with oral malodor status. In addition, ROC analysis showed that the turbidity had an ability to screen for presence or absence of oral malodor.


      Turbidity could reflect or represent other influential variables of oral malodor and may be useful as a screening method for oral malodor.
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