Effect of nanosilver on thermal and mechanical properties of acrylic base complete dentures.

Frontiers in Dentistry

卷:11

Tahereh Ghaffari¹  Fahimeh Hamedi-Rad¹  Ali Ramazani²  Farzad Rezaii³ 

[1] Assistant Professor, Department of Prosthodontist, Dental Faculty of Tabriz Medical Science University, Tabriz, Iran.;

[2] Associate Researcher, Department of Georesources and Materials Engineering, University of Michigan-Ann Arbor.;

[3] Dentist, Department of Georesources and Materials Engineering, University of Michigan-Ann Arbor.;

关键词: Compressive strength;    Nanosilver;    Polymethyl methacrylate (PMMA);    Tensile strength;    Thermal conductivity;   

DOI  :  

来源: DOAJ

【 摘 要 】

Polymethyl methacrylate (PMMA), widely used as a prosthodontic base, has many disadvantages, including a high thermal expansion coefficient and low thermal conductivity, a low elasticity coefficient, low impact strength and low resistance to fatigue. This study aimed to make an in vitro comparison of the thermal conductivity, compressive strength, and tensile strength of the acrylic base of complete dentures with those of acrylic reinforced with nanosilver.For this study, 36 specimens were prepared. The specimens were divided into three groups of 12; which were further divided into two subgroups of control (unmodified PMMA) and test (PMMA mixed with 5 weight% nanosilver).The results were analysed by Independent t-test.This study showed that the mean thermal conductivity and compressive strength of PMMA reinforced with nanosilver were significantly higher than the unmodified PMMA (P

【 授权许可】

Unknown