Related Experiment Videos
Swallowing threshold and masticatory performance in dentate adults
F A Fontijn-Tekamp1, A van der Bilt, J H Abbink
1Department of Head and Neck, Oral Physiology Group, STR. 4.129, University Medical Center Utrecht, P.O. Box 85.060, 3508 AB Utrecht, The Netherlands. F.A.Fontijn@med.uu.nl
Physiology & Behavior
|December 8, 2004
Summary
This study found that while chewing performance varies with food type and volume, individuals who chew less effectively don't necessarily chew for longer periods, potentially leading to larger swallowed particles.
Area of Science:
- Oral Physiology
- Biomaterials Science
Background:
- Masticatory function evaluation often uses natural and artificial foods.
- Understanding food breakdown and swallowing thresholds is crucial for assessing oral health.
Purpose of the Study:
- To compare swallowing thresholds of natural foods (peanuts, cheese, carrots) with a standardized artificial food (Optocal Plus).
- To investigate the relationship between masticatory performance and swallowing threshold.
Main Methods:
- Eighty-seven healthy dentate subjects participated.
- Evaluated dental state, recorded chewing strokes, analyzed particle size (X50) of Optocal Plus.
- Determined median particle sizes at 15 strokes and upon swallowing.
Main Results:
- Chewing strokes for natural foods increased linearly with volume; carrots required more strokes than peanuts/cheese.
- Optocal Plus required a similar number of strokes as carrots.
- Masticatory performance was influenced by dental state, not age or gender.
- Correlations found between chewing strokes, particle size, and food type.
Conclusions:
- Chewing performance and swallowing thresholds differ between natural and artificial foods.
- Individuals with poorer masticatory performance may swallow larger particles, irrespective of chewing duration.