title: [Effect of chewing sugar-free gum after sucrose challenge on dental plaque pH in situ].
abstract: OBJECTIVE
  To evaluate the effect of chewing sugar-free gum after sucrose challenge on dental plaque pH in situ.
  
  
  METHODS
  16 healthy volunteers aged 23 - 32 years were screened as subjects. The pH of 48-hour dental plaque was measured using a Beetrode pH microelectrode when subjects chewed Extra sugar-free gum after sucrose challenge.
  
  
  RESULTS
  Dental plaque pH maintained at resting plaque pH when immediately chewed sugar-free gum after sucrose challenge. Chewing sugar-free gum at 5 min after sucrose challenge, dental plaque pH was raised from 5.59 (measured at 5 min after sucrose challenge) to 6.98 (measured at 10 min after sucrose challenge).
  
  
  CONCLUSIONS
  Chewing sugar-free gum after sucrose challenge can neutralize organic acid produced by bacteria in dental plaque and rapidly rise plaque pH.
authors.affiliation: Department of Operative Dentistry and Endodontics, Peking University School of Stomatology, Beijing 100081, China.
authors.forename: Yan-mei
authors.initials: YM
authors.lastname: Dong
authors.forename: Yi-chun
authors.initials: YC
authors.lastname: Pan
authors.forename: Dong-mei
authors.initials: DM
authors.lastname: Wang
authors.forename: Cai-fang
authors.initials: CF
authors.lastname: Cao
mesh_terms: D000328:Adult; D002638:Chewing Gum; D003773:Dental Plaque / Q000378:metabolism / Q000517:prevention & control*; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008297:Male; D013395:Sucrose
chemical_list: D002638:Chewing Gum; D013395:Sucrose