title: Turbidity of mouthrinsed water as a screening index for oral malodor.
abstract: OBJECTIVE
  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.
  
  
  METHODS
  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.
  
  
  RESULTS
  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.
  
  
  CONCLUSIONS
  Turbidity could reflect or represent other influential variables of oral malodor and may be useful as a screening method for oral malodor.
authors.affiliation: Department of Oral Health Promotion, Graduate School of Medical and Dental Universities, Tokyo Medical and Dental University, Tokyo, Japan. ueno.ohp@tmd.ac.jp
authors.forename: Masayuki
authors.initials: M
authors.lastname: Ueno
authors.forename: Susumu
authors.initials: S
authors.lastname: Takeuchi
authors.forename: Patcharaphol
authors.initials: P
authors.lastname: Samnieng
authors.forename: Seiji
authors.initials: S
authors.lastname: Morishima
authors.forename: Kayoko
authors.initials: K
authors.lastname: Shinada
authors.forename: Yoko
authors.initials: Y
authors.lastname: Kawaguchi
mesh_terms: D000328:Adult; D058491:Bacterial Load; D002849:Chromatography, Gas / Q000379:methods; D004245:DMF Index; D003774:Dental Plaque Index; D003817:Dentition; D005260:Female; D006209:Halitosis / Q000175:diagnosis* / Q000382:microbiology; D006801:Humans; D006862:Hydrogen Sulfide / Q000032:analysis; D008297:Male; D008403:Mass Screening; D008875:Middle Aged; D009067:Mouthwashes / Q000032:analysis*; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation / Q000706:statistics & numerical data*; D010512:Periodontal Index; D012372:ROC Curve; D012463:Saliva / Q000378:metabolism; D012636:Secretory Rate / Q000502:physiology; D012680:Sensitivity and Specificity; D012903:Smell / Q000502:physiology; D013438:Sulfhydryl Compounds / Q000032:analysis; D013457:Sulfur Compounds / Q000032:analysis; D014059:Tongue / Q000473:pathology; D014867:Water / Q000032:analysis*
chemical_list: D009067:Mouthwashes; D013438:Sulfhydryl Compounds; D013457:Sulfur Compounds; D014867:Water; C005231:methylmercaptan; D006862:Hydrogen Sulfide