Analysis in vitro of strength degradation comparing latex and non-latex elastics

Authors

  • Daniela Ferreira de Carvalho Notaroberto State University of Rio de Janeiro
  • Mariana Martins e Martins Fluminense Federal University
  • Maria Teresa de Andrade Goldner State University of Rio de Janeiro
  • Cátia Abdo Quintão State University of Rio de Janeiro
  • Alvaro de Moraes Mendes State University of Rio de Janeiro

DOI:

https://doi.org/10.20396/bjos.v17i0.8653813

Keywords:

Elastomer. Tensile strenght. Latex. Silicone elastomers.

Abstract

Aim: This study was conducted in order to evaluate and compare the behavior of latex and non-latex elastics, as the loss of strength over time in vitro. Methods: The study evaluated 15 of each elastic material for the pre-selected times: 0, 1, 3, 12 and 24 hours. The rubber bands were transferred to the testing machine (EMIC DL-500 MF). The force values were recorded after stretching the elastic to a length of 25mm. Independent t-test was applied. Analysis of variance (ANOVA) was used to check the variation of the forces generated between those determined times. To identify between which times the difference was present, Tukey post-hoc test was accomplished. Results: As regards the initial forces (zero time), the values of force for non-latex elastic were slightly higher than the latex elastic. In subsequent times, the forces generated by the latex elastic showed higher values. Regarding the material degradation, at the end of 24 hours the highest percentage was observed for non-latex elastic. Conclusion: The latex elastic had a more stable behavior during the studied period compared with non-latex.

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Author Biographies

Daniela Ferreira de Carvalho Notaroberto, State University of Rio de Janeiro

Department of Preventive and Community Dentistry

Mariana Martins e Martins, Fluminense Federal University

Odontoclinic Department

Maria Teresa de Andrade Goldner, State University of Rio de Janeiro

Department of Preventive and Community Dentistry

Cátia Abdo Quintão, State University of Rio de Janeiro

Department of Preventive and Community Dentistry

Alvaro de Moraes Mendes, State University of Rio de Janeiro

Department of Preventive and Community Dentistry

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Published

2018-10-30

How to Cite

1.
Notaroberto DF de C, Martins MM e, Goldner MT de A, Quintão CA, Mendes A de M. Analysis in vitro of strength degradation comparing latex and non-latex elastics. Braz. J. Oral Sci. [Internet]. 2018 Oct. 30 [cited 2022 Aug. 10];17:e18144. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8653813

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