Document Detail

Gastric emptying of solid food in edentulous patients.
MedLine Citation:
PMID:  8536818     Owner:  NLM     Status:  MEDLINE    
Whether mastication of food by teeth is a physiological contributor in the process of nutrient digestion remains a debatable issue. In this study we sought to determine whether mastication could influence the gastric emptying of solid food. In 8 edentulous patients, we measured the gastric emptying of a test meal ingested with or without their dental prostheses. Clinical dental evaluation and Helkimo chewing test were first performed to verify that the mastication deficiency was adequately corrected by the dental prostheses. A mixed meal containing ten cubes (1.5 cm) of beef liver labeled with 99mTc and mixed in a chicken stew was ingested by the subjects and followed by gamma camera external scintigraphy. The gastric emptying rate of the 99mTc-labeled liver was similar whether the meal was ingested with the denture properly inserted, allowing normal mastication of the liver cubes, or whether the food was swallowed unmasticated in the absence of functional prostheses (Tlag = 60 +/- 5 vs. 58 +/- 11 min, p = NS; T1/2 = 73 +/- 21 vs. 55 +/- 10 min, p = NS; Tlag+T1/2 = 133 +/- 19 vs. 114 +/- 17 min, p = NS). These results show that gastric trituration and emptying of solid food was not facilitated by prior mastication.
P Poitras; M Boivin; J Morais; M Picard; P Mercier
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Digestion     Volume:  56     ISSN:  0012-2823     ISO Abbreviation:  Digestion     Publication Date:  1995  
Date Detail:
Created Date:  1996-02-06     Completed Date:  1996-02-06     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0150472     Medline TA:  Digestion     Country:  SWITZERLAND    
Other Details:
Languages:  eng     Pagination:  483-7     Citation Subset:  IM    
André-Viallet Clinical Research Centre, Hôpital Saint-Luc, Montreal, Que., Canada.
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MeSH Terms
Gastric Emptying*
Middle Aged
Mouth, Edentulous*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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