Altering Water Effect and Surface Properties of Heat Cured Poly Methyl Methacrylate by Adding Surface Treated Titanium Di Oxide Nano Particles

A. Alnamel, Hasanen

doi:10.25130/tjds.7.1.1

	Altering Water Effect and Surface Properties of Heat Cured Poly Methyl Methacrylate by Adding Surface Treated Titanium Di Oxide Nano Particles
Tikrit Journal for Dental Sciences
Volume 7, Issue 1, June 2019, Pages 1-10 PDF (503.71 K)
DOI: 10.25130/tjds.7.1.1
Author
Hasanen A. Alnamel
(1)Ass. Lec. Department of Prosthetic, College of Dentistry, Basrah University, Iraq.
Abstract
Titanium dioxide (TiO2) is extensively used part of our regular life. It can be observed in various commonly utilized goods & customer imports for instance drugs, plastics,cosmetics, food and paper. Universally, the quantity of titanium oxide manufactured in 2009 was 4.68 million tons for that reason the tenacity of the revision is controlling the amount of change on the denture base physical features such as the heat treatment in denture processing (PMMA)through the implementation of modified outer surface titanium di oxide Nano particles. Its properties are comprised of water solubility, surface roughness, water sorption and surface hardness. The controlled TiO2 powder added to heat cured acrylic material according to the main weight of PMMA in concentration of 3%, 5% and 7%, and then it's mixed regularly by engine of probe ultra-sonication. Titanium oxide Nano fillers were merged in denture based material with the help of more free radical polymerization in bulk. The nanoparticles were surface treated by a layer of trime thoxysilypropylmethacrylate (TMSPM). 120 specimens were created and separated into 3 sample sets affording to the examination (each sample sets consist of 40 samples) and each sample sets were sectioned in four subsets according to the TiO2 added ratio and ultimately containing 10 samples in each subset. The tests which conducted were indentation hardness (shore D), surface roughness properties as well as water sorption and solubility. For each test four of the sub groups (one controlled and three with added Nano TiO2). Important to mention that extremely elevation in surface hardness score and roughness were detected at the ratio of 3%, 5%and7%. Thus escalation of added TiO2 nan-fillers considerably reduced the water solubility and sorption. The accumulation of the powder of TiO2 nanoparticles which have been surface treated to the PMMA acrylic resin thus changing the PMMA properties for example surface rigidity and surface coarseness. In which it’s increased in direct proportional relation with the raise of TiO2 concentration; at the same time addition of surface treated TiO2 Nano particles decrease water sorption and solubility of (PMMA) also in direct proportional relation with the raise of TiO2 concentration.
Keywords
PMMA (heat cure acrylic) Titanium di oxide

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