Film-forming properties and viscosities of saliva substitutes and human whole saliva

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Film-forming properties and viscosities of saliva substitutes and human whole saliva

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Publication Article, peer reviewed scientific
Title Film-forming properties and viscosities of saliva substitutes and human whole saliva
Author(s) Christersson, Cecilia ; Lindh, Liselott ; Arnebrant, Thomas
Date 2000
English abstract
Hypo-salivation, related to medical remedies, is an increasing clinical problem. Studies report a weak correlation between subjective mouth dryness and objective sialometry. This indicates that both quantity and quality of saliva are important for the surface-associated functions of saliva, such as lubrication and hydration, to be expressed. Film-forming properties and viscosities of three saliva substitutes were compared to human saliva. Adsorption to surfaces was measured by ellipsometry, infrared spectroscopy and drop-volume technique. Viscosity measurements were carried out using an oscillating rheometer. Saliva, with the lowest viscosity value and the highest protein content, presented superior film retention on both hydrophilic and hydrophobic surfaces. The carboxymethylcellulose-based MAS 84 showed intermediate values of viscosity, poorest ability to reduce surface tension, and negligible film-forming capacity. The porcine mucin-based Saliva Orthana showed about twice the viscosity of saliva and film-forming capability on preferably hydrophobic substrates. Salinum, a linseed extract, possessed the highest viscosity value and an initial surface tension close to that of saliva. The film retention on hydrophilic surfaces was not as effective as for saliva. The results indicate that the film-forming capacity of saliva substitutes is a property also to be considered in the exploration of clinically effective artificial salivas.
DOI http://dx.doi.org/10.1034/j.1600-0722.2000.108005418.x (link to publisher's fulltext)
Host/Issue European Journal of Oral Sciences;5
Volume 108
Pages 418-425
Language eng (iso)
Subject(s) saliva
saliva substitutes
viscosity
film formation
adsorption
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/4065 (link to this page)

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