Effect of Thermocycling on Surface Roughness and Shear Bond Strength of Acrylic Soft Liner to the Surface of Thermoplastic Acrylic Treated with Ethyl Acetate

Authors

  • Duha Qais Sabah
  • Bayan S. Khalaf

DOI:

https://doi.org/10.37506/ijfmt.v16i1.17681

Keywords:

Thermoplastic acrylic, ethyl acetate. toxicity

Abstract

Objective: To enhance bonding strength between thermoplastic denture base and acrylic soft liner through ethyl acetate surface treatment.
Materials and Methods: Modifications of thermoplastic acrylic denture base surface were investigated with SEM. FTIR was used to detect whether there was a chemical bond between thermoplastic acrylic and the organic solvent. A total of 80 samples were prepared and divided into 20 samples for the surface roughness test and 60 samples for the shear bond strength test. Failure type was assessed visually.
Results: Shear bond strength and surface roughness values of un treated samples were lower in comparison to surface treated groups; the greatest post thermocycling bond strength value was recorded for the samples treated with ethyl acetate following 1500 cycles.
Conclusions: Bonding strength was improved following ethyl acetate surface treatment.

Author Biographies

Duha Qais Sabah

Post Graduate;  Department of Prosthodontics, College of Dentistry, University of Baghdad, Iraq

Bayan S. Khalaf

Assistant Professor, Department of Prosthodontics, College of Dentistry, University of Baghdad, Iraq

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Published

2021-11-30

How to Cite

Duha Qais Sabah, & Bayan S. Khalaf. (2021). Effect of Thermocycling on Surface Roughness and Shear Bond Strength of Acrylic Soft Liner to the Surface of Thermoplastic Acrylic Treated with Ethyl Acetate. Indian Journal of Forensic Medicine & Toxicology, 16(1), 1353–1360. https://doi.org/10.37506/ijfmt.v16i1.17681