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Authors

SUMMARY
Objective: The purpose of this in vitro study
was to compare the tensile strength between
two materials for the manufacture of
acrylic denture bases (Veracril® from New
Stetic and SR Triplex Hot® from Ivoclar
Vivadent), and to know the mechanical
properties of materials to study that have
clinical implications.
Methods: Laboratory tests were conducted
under the technical standard of ASTM
International # D 638-03 to evaluate the
two acrylic resin materials for denture
bases, processed by pressed moulding. The
observations were made using the universal
testing machine Tinius Olsen® brand
H50KS to analyze the tensile properties
such as modulus of elasticity, elongation,
yield strength, maximum strength, energy,
effort and tensile stress between the two
materials evaluated.
Results: For the effort, maximum strength
and modulus of elasticity, high-impact
acrylic resin SR Triplex Hot® showed
higher values. With regard to the characteristics
of maximum displacement
before the fracture, elongation and energy,
conventional acrylic resin showed higher
values. The only characteristic that showed
a significant difference between the two
groups of thermo-cured acrylic resin was
the modulus of elasticity where the highimpact
acrylic resin obtained a much higher
value than conventional acrylic resin.
Conclusions: The acrylic resin SR Triplex
Hot® presents higher values in some tensile
properties, while the Veracril® shows
better in others. The only characteristic that
showed a significant difference between
the two acrylic resins was the modulus of
elasticity.
Keywords: Acrylic resin denture bases,
tensile strength, high impact acrylic resin.

Juán José Castillo, Universidad del Valle. Cali, Colombia.

Estudiante de último año de Odontología.

Santiago Herrera, Universidad del Valle. Cali, Colombia

Estudiante de último año de Odontología

Pablo Andrés Rey, Universidad del Valle. Cali, Colombia

Estudiante de último año de Odontología.

Carlos Mejía Pavony, Universidad del Valle. Cali, Colombia

Profesor, Escuela de Odontología.

Adriana Jaramillo, Universidad del Valle. Cali, Colombia

Profesor, Escuela de Odontología.

Castillo, J. J., Herrera, S., Rey, P. A., Mejía Pavony, C., & Jaramillo, A. (2011). Comparison of tensile properties of thermo cured acrylic resins for the preparation of denture bases. Revista Estomatología, 19(1). https://doi.org/10.25100/re.v19i1.5721