Effects of dietary sucrose levels on the quantity and microbial composition of human dental plaque

J Dent Res. Jul-Aug 1975;54(4):872-80. doi: 10.1177/00220345750540042801.


The effects of dietary sucrose levels on the microbial composition of 4- and 12-day plaque were investigated in eight dental students. Sucrose-rich diets had no demonstrable effects on total plaque accumulation, whereas total viable microbial density, Streptococcus mutans, and the lactobacilli populations increased. The S sanguis population was unaffected. However, in individual subjects, an inverse relationship between the S sanguis and S mutans population was observed.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Dental Plaque* / metabolism
  • Dental Plaque* / microbiology
  • Diet
  • Dietary Carbohydrates / metabolism
  • Humans
  • Lactobacillus / isolation & purification
  • Streptococcus mutans / isolation & purification
  • Streptococcus sanguis / isolation & purification
  • Sucrose / pharmacology*


  • Dietary Carbohydrates
  • Sucrose