Development time and the deformity degree of the thermoformed base plate compared to the acrylic base plate of self-polymerization

Authors

  • Stefanny Valverde Fajardo Universidad Latina de Costa Rica
  • Maikol Ramos Madrigal Universidad Latina de Costa Rica

DOI:

https://doi.org/10.59334/ROV.v2i31.321

Keywords:

Self-curing acrylic base plate, thermoformed base plate, prosthetic dentures, acrylic resins, polymethyl methacrylate

Abstract

Introduction: Currently there are different types of materials for the preparation of base plates, as a procedure for the preparation of dental prostheses. The option of the thermoforming sheet, which is currently of little use, as well as, of self-curing acrylic, a material of daily use in consultation. Objective: To compare the techniques for making base plates, to determine which of the two provide qualities such as shorter processing time and less deformity.

Materials and methods: 20 models of gypsum totally edentulous were selected for convenience, to which processing time is recorded and the same laboratory tests are applied.

Results: The thermoformed base plates have an average time of 7 minutes, while the self polymerized acrylic base plates have an average time of 29 minutes, based on the laboratory analysis the least deformation occurs in the acrylic base plate of autopolimerization.

Conclusion: The time of preparation of the thermoformablebase plate is less, while the deformation is greater compared to the base plate of self-polymerizatíon, the latter in turn, has a longer processing time than the thermoformable base plate.

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References

ASTM. Designación D 638-14: Standard test method for tensile properties of plastics.

ASTM. Designación D 6988-13: Standard guide for determination of thickness of plastic film test specimens.

ASTM. Designación D792-13: Standard test method for density and specific gravity (relative density) of plastics by displacement.

ASTM. Designación D 882-12: Standard test method for tensile properties of thin plastic sheeting.

ASTM. Designación E 1131-03: Standard test method for compositional analysis by thermogravimetry.

ASTM. Designación E 3418-99: Standard test method for transition temperaturas of polymers by differential scanning calorimetry.

Guzmán, H. (2006). Biomateriales odontológicos de uso clínico. Bogotá, Colombia: ECOE Ediciones. Hatakeyama, T., F.X. Quinn. (1999). Thermal analysis. Fundamentals and applications to polymer science. England: John Wiley & Sons.

McCabe, J. (1988). Materiales de aplicación dental. Barcelona, España: Salvat Editores, S. A.

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Rahn, A. O., Ivanhoe, J. R., y Plummer, K. D. (2011). Prótesis dental completa. Buenos Aires, Argentina: Editorial Médica Panamericana.

Seymour, R, C. Carraher. (1995). Introducción a la química de los polímeros. España: Editorial Reverté, S.A. Valverde, S. (2018). Análisis del tiempo de elaboración y el grado de deformidad que presenta la placa base termoformada en comparación con la placa base de acrílico de autopolimerización (polvo/líquido), en modelos de yeso totalmente edéntulos (Tesis de grado). Universidad Latina, San José.

Published

2019-10-22

Issue

Section

Research Article

How to Cite

Development time and the deformity degree of the thermoformed base plate compared to the acrylic base plate of self-polymerization. (2019). Odontología Vital, 2(31), 11-18. https://doi.org/10.59334/ROV.v2i31.321

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