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Bolus dimensions in normal chewing.

J F Prinz1, M R Heath

  • 1Basic Medical Sciences, St Bartholomew's and the Royal London School of Medicine and Dentistry, UK. J.F.Prinz@mds.qmw.ac.uk

Journal of Oral Rehabilitation
|September 30, 2000
PubMed
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Chewing gum bolus length initially increases with weight, plateaus between 4-18g, and then increases again. This plateau size resembles natural food bite sizes.

Area of Science:

  • Food Science
  • Biomechanics
  • Oral Physiology

Background:

  • Chewing is a complex mechanical process.
  • Understanding the physical properties of chewed food boluses is crucial for food science and nutrition.
  • Chewing gum offers a model system to study bolus formation due to its unique viscoelastic properties.

Purpose of the Study:

  • To investigate the relationship between chewing gum weight and the resulting bolus dimensions.
  • To determine if chewing gum bolus size exhibits a plateau phase.
  • To compare the plateau dimensions of chewing gum boluses to natural food bite sizes.

Main Methods:

  • Seventeen different chewing gum types were tested.
  • Eight human subjects participated in the study.

Related Experiment Videos

  • Gum samples were chewed for 20-100 strokes, and the resulting bolus length was measured.

    • Main Results:

    • Bolus length increased with initial gum weight (0.3-4g).
    • A plateau in bolus length was observed for gum weights between 4g and 18g.
    • Beyond 18g, bolus length began to increase again.

    Conclusions:

    • Chewing gum bolus size is dependent on initial weight, with a significant plateau phase.
    • The observed plateau in chewing gum bolus size is comparable to the dimensions of natural food bites.
    • This finding has implications for understanding oral processing of food materials.