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Influence of Mastication on Gastric Emptying
The role of mastication on digestion efficiency remains to be demonstrated. This study investigates whether masticatory function influences gastric emptying rate. Twelve normal volunteers were studied on two occasions after ingestion of the same test meal containing ham cubes, crackers, and egg (mix...
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Published in: | Journal of dental research 2002-03, Vol.81 (3), p.179-181 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | The role of mastication on digestion efficiency remains to be demonstrated. This
study investigates whether masticatory function influences gastric emptying rate.
Twelve normal volunteers were studied on two occasions after ingestion of the same
test meal containing ham cubes, crackers, and egg (mixed with 13C-octanoic
acid), chewed, in random order, either with 50 masticatory cycles or with 25 cycles,
swallowing ham cubes whole. Lag phase (Tlag) and gastric half-emptying
time (T½) were measured by means of the 13C-octanoic acid
breath test. Trituration performance was assessed by the sieve test, and was
expressed as the percentage of ham particles ≤ 1 mm after 50 masticatory cycles.
Tlag and T½ were significantly shorter when the meal was
chewed with 50 cycles than with 25 cycles (Tlag 25.9 ± 3.8
vs. 36.4 ± 4.1 min, p = 0.017; T½ 49.1 ± 5.7
vs. 62.5 ± 6 min, p = 0.009). Trituration performance was
inversely related to both Tlag (r = 0.621, p = 0.031) and T½ (r
= 0.699, p = 0.012). Comminution of food influences significantly gastric emptying
rates. |
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ISSN: | 0022-0345 1544-0591 |
DOI: | 10.1177/0810179 |