This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by McCabe, J.F. Articles by Carrick, T.E. Search for Related Content PubMed PubMed Citation Articles by McCabe, J.F. Articles by Carrick, T.E. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB NATURAL RUBBER Social Bookmarking                         What's this?

Rheological Properties of Elastomers during Setting

Dental Materials Science Unit, The Dental School, Framlington Place, Newcastle upon Tyne NE2 4BW, United Kingdom

T.E. Carrick

Dental Materials Science Unit, The Dental School, Framlington Place, Newcastle upon Tyne NE2 4BW, United Kingdom

A controlled stress rheometer has been used to monitor the changes in rheological properties occurring in five elastomeric impression materials during setting. The rheometer differs from conventional rotary viscometers in that the torque is the controlled variable, and the resulting deformation is measured. The use of such an instrument in oscillatory mode enables a range of rheological parameters-including viscosity, rigidity, and elasticity-to be monitored during setting. The polyvinylsiloxane impression materials develop elasticity at a rate that would not be apparent from measurements of viscosity or rigidity alone. This highlights the potential danger of basing the evaluation of clinically important properties, such as working time, on simple measurements of viscosity or rigidity.

REFERENCES

• Braden, M. (1966): Characterization of the Setting Process in Dental Polysulfide Rubbers, J Dent Res 45:1065-1071.[Free Full Text]
• Braden, M. (1967): Viscosity and Consistency of Impression Rubbers, J Dent Res 46:429-433.[Free Full Text]
• Braden, M. and Elliott, J.C. (1966): Characterization of the Setting Process of Silicone Dental Rubbers, J Dent Res 45:1016-1023.[Free Full Text]
• Combe, E.C. and Moser, J.B. (1978): The Rheological Characteristics of Elastomeric Impression Materials, J Dent Res 57:221-226.[Abstract/Free Full Text]
• Cook, W.D. (1982a): Rheological Studies of the Polymerization of Elastomeric Impression Materials. I. Network Structure of the Set State, J Biomed Mater Res 16:315-330.
• Cook, W.D. (1982b): Rheological Studies of the Polymerization of Elastomeric Impression Materials. II. Viscosity Measurements, J Biomed Maler Res 16:331-334.
• Cook, W.D. (1982c): Rheological Studies of the Polymerization of Elastomeric Impression Materials. III. Dynamic Stress Relaxation Modulus, J Biomed Mater Res 16:345-357.[Medline] [Order article via Infotrieve]
• Cook, W.D. and Brockhurst, P. (1980): The Oscillating Rheomctcr-What docs it Measure?, J Dent Res 59:795-799.[Abstract/Free Full Text]
• Goldberg, A.J. (1974): Viscoelastic Properties of Silicone, Polysulfide and Polyether Impression Materials, J Dent Res 53:1033-1039.[Abstract/Free Full Text]
• Herfort, T.W.; Gerberich, W.W.; Macosko, C.W.; and Goodkind, R.J. (1977): Viscosity of Elastomeric Impression Materials, J Prosthet Dent 38:396-404.[Medline] [Order article via Infotrieve]
• Inoue, K.; Hayashi, I.; Kagigawa, H.; Sugino, Y.; and Terashita, M. (1976): Changes in Viscoelastic Behaviour During Curing of Polyether Impression Materials, J Dent App and Mat 17:44-50.
• Inoue, K. and Wilson, H.J. (1978a): Viscoclastic Properties of Elastomeric Impression Materials. I. A Method of Measuring Shear Modulus and Rigidity during Setting, J Oral Rehabil 5:89-94.[CrossRef][Medline] [Order article via Infotrieve]
• Inoue, K. and Wilson, H.J. (1978b): Viscoelastic Properties of Elastomeric Impression Materials. II. Variation of Rheological Properties with Time, Temperature and Mixing Proportions, J Oral Rehabil 5:261-267.
• ISO (1988): Draft Proposal on Elastomeric Impression Materials, ISO/ DP 4823.
• Jones, T.E.R.; Davies, J.M.; and Barnes, H.A. (1984): Dynamic Flow Properties of Materials in a Constant Stress Rheometer, Proc 8th Int Congress on Rheology 4:45-53.
• Mansfield, M.A. and Wilson, H.J. (1973): A New Method for Determining the Tension Set of Elastomeric Impression Materials, Br Dent J 135:101-105.[Medline] [Order article via Infotrieve]
• McCabe, J.F. and Bowman, A.J. (1981): The Rheological Properties of Dental Impression Materials, Br Dent J 151:179-183.[Medline] [Order article via Infotrieve]
• McCabe, J.F. and Storer, R. (1980): Elastomeric Impression Materials, Br Dent J 149:73-79.[Medline] [Order article via Infotrieve]
• Ohsawa, M. and Finger, W. (1986): Working Time of Elastomeric Impression Materials, Dent Mater 2:179-182.[Medline] [Order article via Infotrieve]
• Salem, N.S.; Watts, D.C.; and Combe, E.C. (1987): Stress Relaxation of Elastomers, Dent Mater 3:37-39.[Medline] [Order article via Infotrieve]
• Tolley, L.G. and Craig, R.G. (1978): Viscoelastic Properties of Elastomeric Impression Materials: Polysulphide, Silicone and Polycther Rubbers, J Oral Rehabil 5:121-128.[Medline] [Order article via Infotrieve]
• Vermilyea, S.G.; Huget, E.F.; and de Simon, L.B. (1980): Apparent Viscosities of Setting Elastomers, J Dent Res 59:1149-1151.[Abstract/Free Full Text]
• Wilson, H.J. (1966a): Elastomeric Impression Materials: The Setting Material, Br Dent J 121:277-283.[Medline] [Order article via Infotrieve]
• Wilson, H.J. (1966b): Elastomeric Impression Materials: The Set Material, Br Dent J 121:322-328.[Medline] [Order article via Infotrieve]

Journal of Dental Research, Vol. 68, No. 8, 1218-1222 (1989)
DOI: 10.1177/00220345890680080101


CiteULike    Complore    Connotea    Del.icio.us    Digg    Reddit    Technorati    Twitter    What's this?

This article has been cited by other articles:

				J.F. McCabe and H. Arikawa Rheological Properties of Elastomeric Impression Materials Before and During Setting Journal of Dental Research, November 1, 1998; 77(11): 1874 - 1880. [Abstract] [PDF]

				J.F. McCabe and T.E. Carrick Onset of Elasticity in Setting Elastomers Journal of Dental Research, September 1, 1990; 69(9): 1573 - 1575. [Abstract] [PDF]

This Article Abstract Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Citation Map Services Email this article to a friend Similar articles in this journal Similar articles in PubMed Alert me to new issues of the journal Add to Saved Citations Download to citation manager Request Permissions Request Reprints Add to My Marked Citations Citing Articles Citing Articles via HighWire Citing Articles via Google Scholar Citing Articles via Scopus Google Scholar Articles by McCabe, J.F. Articles by Carrick, T.E. Search for Related Content PubMed PubMed Citation Articles by McCabe, J.F. Articles by Carrick, T.E. Pubmed/NCBI databases Compound via MeSH Substance via MeSH Hazardous Substances DB NATURAL RUBBER Social Bookmarking                         What's this?