نتایج جستجو برای: polymethyl methacrylate

تعداد نتایج: 10768  

2011
SUBHASH MALIK

PMMA with molecular mass (PMMA Mw: 1.2×105) was synthesized through AIBN initiated free radical polymerization methyl methacrylate at 100 ± 1°C.The synthesized polymer was characterized through GPC coupled with RI detector in presence of THF as mobile phase at 1.0 mL/ min and simultaneous TG-DTA-DTG in nitrogen. TG data were used to investigate the non-isothermal kinetics of solid-state decompo...

Journal: :Journal of biomedical materials research. Part B, Applied biomaterials 2003
Jorrit-Jan Verlaan F Cumhur Oner Abraham J Verbout Wouter J A Dhert

Although the general complication rate for vertebroplasty is low, neural compression and thermal damage have been related to the use of polymethyl-methacrylate cement. This study focuses on the risk of thermal tissue damage after vertebroplasty. In this study, cavities were created by a transpedicular approach in the vertebral bodies (L3, L4, and L5) of four milk goats, and polymethyl-methacryl...

Journal: :journal of dental research, dental clinics, dental prospects 0
tahereh ghaffari fahimeh hamedirad baharak ezzatiparsa

background and aims. polymethyl methacrylate, pmma, is widely used in prosthodontics for fabrication of removable prostheses. this study was undertaken to investigate the effect of adding silver nanoparticles (agnps) to pmma at 2% and 0.2% concentrations on compressive and tensile strengths of pmma. materials and methods. the silver nanoparticles were mixed with heat-cured acrylic resin in an a...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
طاهره غفاری t ghafari dept. of prosthodontics, dental school, tabriz university of medical sciences, tabriz- iran.گروه پروتزهای دندانی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی تبریز فهیمه حامدی راد f. hamedi rad dept. of prosthodontics, dental school, tabriz university of medical sciences, tabriz- iran.گروه پروتزهای دندانی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی تبریز بهارک عزتی b. ezzati dept. of prosthodontics, dental school, tabriz university of medical sciences, tabriz- iran.گروه پروتزهای دندانی، دانشکده دندانپزشکی، دانشگاه علوم پزشکی تبریز

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 acryli...

Journal: :Journal of Research of the National Bureau of Standards 1956

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