ISSN:
1432-0460
Keywords:
Human saliva, lubrication
;
Artificial saliva, lubrication
;
Saliva, viscosity
Source:
Springer Online Journal Archives 1860-2000
Topics:
Medicine
Notes:
Abstract The lubrication regime displayed by human salivas (parotid and submandibular-sublingual), purified salivary molecules (the mucins MG1 and MG2 and α-amylases), and selected artificial salivas (Oracare D, Saliva Substitute, and Orthana) was assessed in vitro using a friction-testing device. Thin-film (boundary) lubrication was observed for all of the salivary samples and two of the artificial salivas examined. Oracare D, a glycerol-based artificial saliva, was the exception since it lubricated by a thick-film (hydrodynamic) regime. On a molar basis, the best lubricants of the purified salivary molecules were MG1 〉 MG2 ≈ nonglycosylated α-amylases ≈ glycosylated α-amylases.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02407152
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