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Visco-elastic Properties of Pour (Fluid) Denture Base Resins
M.J. Barsby
Dental School of the London Hospital Medical College, London E1 2AD, England
M. Braden
Dental School of the London Hospital Medical College, London E1 2AD, England
A number of pour-type denture base resins were found to have low glass transition temperatures, indicating a propensity to thermal distortion. These low transition temperatures reflected high residual monomer contents. Furthermore, such materials exhibited high mechanical loss tangents, consistent with high creep rates observed previously.
REFERENCES
- Winkler, S.: Pour Technique for Denture Base Processing, Dent Dig 73:200-203, 1967.[Medline]
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- Bates, J.F.; Stafford, G.D.; Huggett, R.; and Handley, R.W.: Current Status of Pour-type Denture Base Resins, J Dent 5:177-189,1977.[CrossRef][Medline]
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- Braden, M. and Stafford, G.D.: Visco-elastic Properties of Some Denture Base Materials, J Dent Res 47:519-523, 1968.[Abstract/Free Full Text]
- Ferry, J.D.: Visco-elastic Properties of Polymers, New York: John Wiley and Sons, 1969, p. 159.
- Braden, M.: Relationship of Creep and Recovery to Behavior Under Sinusoidal Strain, J Polym Sci A:1061-1065, 1964.
- Katz, D. and Tobolsky, A.V.: Rubber Elasticity in Highly Crosslinked Polyethyl-acrylate, J Polym Sci 2:1595-1605, 1964.
Journal of Dental Research, Vol. 60, No. 2,
146-148 (1981)
DOI: 10.1177/00220345810600020901

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