title: [Effect of composition in plaque fluid on evaluation of individual caries risk].
abstract: OBJECTIVE
  To study the association of composition in plaque fluid after sugar challenge with caries susceptibility in order to find predictors of identifying individual caries risk.
  
  
  METHODS
  Children aged 6-7, caries free 12, high caries 6 and low caries 7 were studied. Plaque composition were determined by capillary electrophoresis.
  
  
  RESULTS
  Contents of lactic acid and lower pKa acids were significantly lower in caries free group than in low caries (P = 0.002) and high caries (P = 0.01) groups. It demonstrated by multiple regression and Logistic regression that lactic acid content could be a predictor of individual caries risk.
  
  
  CONCLUSIONS
  Content of lactic acid in plaque fluid 7 minutes after sugar challenge could be a predictor of individual caries risk.
authors.affiliation: Department of Operative Dentistry and Endodontics, Peking University School of Stomatology, Beijing 100081, China.
authors.forename: Y
authors.initials: Y
authors.lastname: Dong
authors.forename: X
authors.initials: X
authors.lastname: Gao
mesh_terms: D002648:Child; D003731:Dental Caries / Q000378:metabolism* / Q000382:microbiology; D003733:Dental Caries Susceptibility / Q000502:physiology*; D003773:Dental Plaque / Q000737:chemistry*; D019075:Electrophoresis, Capillary; D006801:Humans; D019344:Lactic Acid / Q000378:metabolism; D012044:Regression Analysis
chemical_list: D019344:Lactic Acid