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Mechanical Properties of Elastomeric Impression Materials: An In Vitro Comparison
Joint Authors
De Angelis, Francesco
Caputi, Sergio
D’Amario, Maurizio
D’Arcangelo, Camillo
Augusti, Davide
Re, Dino
Augusti, Gabriele
Source
International Journal of Dentistry
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-11-26
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
Purpose.
Although new elastomeric impression materials have been introduced into the market, there are still insufficient data about their mechanical features.
The tensile properties of 17 hydrophilic impression materials with different consistencies were compared.
Materials and Methods.
12 vinylpolysiloxane, 2 polyether, and 3 hybrid vinylpolyether silicone-based impression materials were tested.
For each material, 10 dumbbell-shaped specimens were fabricated (n=10), according to the ISO 37:2005 specifications, and loaded in tension until failure.
Mean values for tensile strength, yield strength, strain at break, and strain at yield point were calculated.
Data were statistically analyzed using one-way ANOVA and Tukey’s tests (α=0.05).
Results.
Vinylpolysiloxanes consistently showed higher tensile strength values than polyethers.
Heavy-body materials showed higher tensile strength than the light bodies from the same manufacturer.
Among the light bodies, the highest yield strength was achieved by the hybrid vinylpolyether silicone (2.70 MPa).
Polyethers showed the lowest tensile (1.44 MPa) and yield (0.94 MPa) strengths, regardless of the viscosity.
Conclusion.
The choice of an impression material should be based on the specific physical behavior of the elastomer.
The light-body vinylpolyether silicone showed high tensile strength, yield strength, and adequate strain at yield/brake; those features might help to reduce tearing phenomena in the thin interproximal and crevicular areas.
American Psychological Association (APA)
Re, Dino& De Angelis, Francesco& Augusti, Gabriele& Augusti, Davide& Caputi, Sergio& D’Amario, Maurizio…[et al.]. 2015. Mechanical Properties of Elastomeric Impression Materials: An In Vitro Comparison. International Journal of Dentistry،Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1065466
Modern Language Association (MLA)
Re, Dino…[et al.]. Mechanical Properties of Elastomeric Impression Materials: An In Vitro Comparison. International Journal of Dentistry No. 2015 (2015), pp.1-8.
https://search.emarefa.net/detail/BIM-1065466
American Medical Association (AMA)
Re, Dino& De Angelis, Francesco& Augusti, Gabriele& Augusti, Davide& Caputi, Sergio& D’Amario, Maurizio…[et al.]. Mechanical Properties of Elastomeric Impression Materials: An In Vitro Comparison. International Journal of Dentistry. 2015. Vol. 2015, no. 2015, pp.1-8.
https://search.emarefa.net/detail/BIM-1065466
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1065466