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:: Volume 32, Issue 3 (Summer 2014) ::
J Dent Sch GYEAR__, 32(3): 139-144 Back to browse issues page
Does Addition of Silver Nanoparticles to Denture Base Resin Increase Its Thermal Conductivity?
T Ghafari , F. Hamedi Rad , B. Ezzati *
Postgraduate Students , : ezzatibaharak@yahoo.com
Abstract:   (1546 Views)

  Objective: Studies have demonstrates that physical properties of denture base affect patient satisfaction and acceptance. Thermal conductivity is among the most important properties of denture base influencing the sense of taste and gingival health. The conventionally used acrylic resin has a low coefficient of thermal conductivity. This study aimed to improve the thermal conductivity of acrylic resin by adding small concentrations of nanosilver.

  Methods: In this laboratory experimental study, 0.2wt% and 2wt% silver nanoparticles measuring 10-100 nm were mixed with the conventional denture base acrylic powder. Cylindrical samples were fabricated and thermal conductivity was measured. One-way ANOVA and Scheffe’s post-hoc test were used to compare the mean thermal conductivity of different groups. Data were analyzed using SPSS 15 and p<0.05 was considered statistically significant.

  Results: The thermal conductivity of resins reinforced with nanosilver was significantly higher than that of the conventional resin. By increasing the amount of nanoparticles in the acrylic powder, thermal conductivity further increased.

  Conclusion: Addition of small amounts of nanosilver to denture base acrylic resin increases its thermal conductivity.

Keywords: Acrylic resin, Denture, Nanoparticles, Polymethyl methacrylate, Silver filler, Thermal conductivity
Full-Text [PDF 106 kb]   (846 Downloads)    
Type of Study: Original Article | Subject: Special
Received: 2014/08/4 | Accepted: 2014/08/4 | Published: 2014/08/4
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Ghafari T, Hamedi Rad F, Ezzati B. Does Addition of Silver Nanoparticles to Denture Base Resin Increase Its Thermal Conductivity?. J Dent Sch. 2014; 32 (3) :139-144
URL: http://jds.sbmu.ac.ir/article-1-1304-en.html
Volume 32, Issue 3 (Summer 2014) Back to browse issues page
مجله دانشکده دندانپزشکی دانشگاه علوم پزشکی شهید بهشتی Shahid Beheshti University Dental Journal
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