Influence of dietary simulating solvents on the viscoelasticity of temporary soft lining materials

Statement Of Problem. Clinical changes in the viscoelasticity of temporary soft lining materials are characterized by a more rapid and increased reduction in compliance than is seen after in vitro immersion. A possible explanation for these differences is a solvent effect, acting clinically to encou...

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Bibliographic Details
Published in:The Journal of prosthetic dentistry 2000, Vol.83 (1), p.25-31
Main Authors: Jepson, Nicholas J.A., McGill, Joseph T., McCabe, John F.
Format: Article
Language:English
Subjects:
Analysis of Variance
Dentistry
Denture Liners
Denture, Partial, Temporary
Diet
Elasticity - drug effects
Humans
Materials Testing - instrumentation
Materials Testing - methods
Materials Testing - statistics & numerical data
Reproducibility of Results
Solvents - pharmacology
Viscosity - drug effects
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Summary:Statement Of Problem. Clinical changes in the viscoelasticity of temporary soft lining materials are characterized by a more rapid and increased reduction in compliance than is seen after in vitro immersion. A possible explanation for these differences is a solvent effect, acting clinically to encourage the loss of ethanol and plasticizer. Dietary solvents have been suggested as likely agents. Purpose. This study examined the effect of immersion in dietary simulating solvents on the viscoelasticity of temporary soft lining materials, with a view to formulating more clinically relevant immersion regimes used in the evaluation of these materials. Material And Methods. Four temporary soft lining materials were immersed in distilled water and solutions chosen to simulate dietary solvents. Changes in viscoelasticity over time were recorded with a penetrometer, modified to record creep strain and strain during recovery. Results. All immersion solutions caused a significant reduction in compliance values of each material over time ( P
ISSN:0022-3913
1097-6841
DOI:10.1016/S0022-3913(00)70085-0