Effect of gum chewing following food ingestion on the pH of interproximal dental plaque

Ignatius K Lee, Charles F. Schachtele

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


Recent publications have suggested that chewing sorbitol- or sucrose-containing gum after a snack or meal can reduce development of caries by neutralizing dental plaque acids at interproximal sites in the dentition. To confirm these findings four volunteers wore appliances containing a miniature pH electrode. After plaque accumtdation, subjects ingested a bowl of sugar-coated cereal with milk and 20 minutes later chewed a sorbitol-containing gum, a sucrose-containing gum, or did not chew anything for 20 minutes. After exposure to the cereal, the plaque pH fell within 20 minutes from approximately 6.4 to 4.8. Sorbitol gum caused the pH to rise to 5.5, while the sucrose gum caused the pH to rise to only 5.1, After cessation of chewing, the pH in all cases dropped to 4.5 or lower. No statistically significant difference could be shown between plaque pH changes with the various protocols. Gum chewing after eating caused only a transient elevation in plaque pH.

Original languageEnglish (US)
Pages (from-to)455-459
Number of pages5
JournalQuintessence international
Issue number7
StatePublished - 1992

Bibliographical note

Copyright 2016 Elsevier B.V., All rights reserved.


Dive into the research topics of 'Effect of gum chewing following food ingestion on the pH of interproximal dental plaque'. Together they form a unique fingerprint.

Cite this