title: [The effect of chewing gum containing tea polyphenol on salivary flow rate and pH].
abstract: OBJECTIVE
  To investigate the change of saliva flow rate and pH after chewing tea polyphenol gum.
  
  
  METHODS
  Saliva was collected before and after chewing tea polyphenol gum and the control gum. Both the salivary flow rate and pH value were measured and analyzed by one-way ANOVA and SNK.
  
  
  RESULTS
  The chewing gum significantly increased the flow rate as well as pH value of the saliva. The flow rate of the tested and control gum reached peak in the first minute. They were 3.15+/-1.05 and 3.30+/-0.87 ml respectively. There was no significant difference between the chewing gums.
  
  
  CONCLUSIONS
  Chewing gum can increase the secretion and elevate the pH value of the saliva which benefits oral health care.
authors.affiliation: Department of Preventive and Pediatric Dentistry, College of Stomatology, Ninth People's Hospital, School of Medicine, Shanghai Jiaotong University, Shanghai 200011, China. taodanying@sina.com
authors.forename: Dan-ying
authors.initials: DY
authors.lastname: Tao
authors.forename: Xi-ping
authors.initials: XP
authors.lastname: Feng
authors.forename: Chen-bin
authors.initials: CB
authors.lastname: Shu
mesh_terms: D002638:Chewing Gum; D006801:Humans; D006863:Hydrogen-Ion Concentration / Q000187:drug effects*; D059808:Polyphenols / Q000494:pharmacology*; D012463:Saliva / Q000378:metabolism*; D012636:Secretory Rate / Q000187:drug effects*; D013662:Tea / Q000737:chemistry*
chemical_list: D002638:Chewing Gum; D059808:Polyphenols; D013662:Tea