Home About us Editorial board Ahead of print Current issue Search Archives Submit article Instructions Subscribe Contacts Login 
  • Users Online: 707
  • Home
  • Print this page
  • Email this page
ORIGINAL ARTICLE
Year : 2022  |  Volume : 19  |  Issue : 1  |  Page : 33

Effect of incorporating aluminum oxide nanoparticles on thermal conduction and flexural strength of acrylic resins


1 Department of Prosthodontics, School of Dentistry, Dental and Periodontal Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
2 Dentist, Tabriz, Iran

Correspondence Address:
Dr. Tahereh Ghaffari
Department of Prosthodontics, Faculty of Dentistry, Tabriz University of Medical Sciences, Tabriz
Iran
Login to access the Email id

Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1735-3327.344156

Rights and Permissions

Background: The mechanical and thermal properties of polymethyl methacrylate, as the most commonly used material for the fabrication of dental prostheses, should be improved due to its structural weaknesses. The present study aimed to compare the flexural strength and thermal conduction of two heat-cured and self-cured acrylic resins reinforced with aluminum oxide nanoparticles. Materials and Methods: In this in vitro study, a total of 114 samples consisting of heat- and self-cured three subgroups (1% and 3% Al2O3 and the control) with 66 samples for the thermal conduction (n = 11) and 48 samples for the flexural strength (n = 8) tests were prepared. Flexural strength was assessed with a three-point bending test using a universal testing machine. One-way ANOVA was applied for data analysis, followed by post hoc Tukey paired group comparison tests (P < 0.05). Results: An increase in the aluminum oxide nanoparticle percentage in acrylic resins increased the thermal conduction in heat-cured acrylic resin from 2.142 ± 0.0298 to 2.487 ± 0.0359 m (2)/sec and in self-cured acrylic resin from 2.0150 ± 0.02646 to 2.1475 ± 0.04031 m (2)/sec and decreased the flexural strength in heat-cured acrylic resin from 60.521 ± 8.9278 to 49.747 ± 4.4729 MPa and in self-cured acrylic resin from 37.573 ± 10.9237 to 35.569 ± 6.1531 MPa (P < 0.05). Conclusion: The incorporation of aluminum oxide nanoparticles adversely affected acrylic resin flexural strength; however, it increased the thermal conduction.


[FULL TEXT] [PDF]*
Print this article     Email this article
 Next article
 Previous article
 Table of Contents

 Similar in PUBMED
   Search Pubmed for
   Search in Google Scholar for
 Related articles
 Citation Manager
 Access Statistics
 Reader Comments
 Email Alert *
 Add to My List *
 * Requires registration (Free)
 

 Article Access Statistics
    Viewed405    
    Printed6    
    Emailed0    
    PDF Downloaded45    
    Comments [Add]    

Recommend this journal