Streptococcus mutans in plaque after mouth-rinsing with buffers of varying pH value

Scand J Dent Res. 1980 Feb;88(1):76-8. doi: 10.1111/j.1600-0722.1980.tb00723.x.


After a period of mouthrinsing with a phosphoric buffer solution with low pH the proportional distribution of Streptococcus mutans in plaque from occlusal retention sites was significantly higher than after a control period. This indicates that colonization with S. mutans may be favored or that other microorganisms competing with S. mutans are inhibited under these circumstances.

MeSH terms

  • Buffers
  • Dental Plaque / microbiology*
  • Humans
  • Hydrogen-Ion Concentration
  • Mouthwashes / pharmacology*
  • Phosphates / pharmacology*
  • Streptococcus mutans / cytology
  • Streptococcus mutans / drug effects*
  • Water / pharmacology


  • Buffers
  • Mouthwashes
  • Phosphates
  • Water