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Dental Treatment 2018 Dentistry and Craniofacial Research
ISSN: 2576-392X Page 68
September 10-11, 2018
Zurich, Switzerland
25th International Conference on
Dental Treatment
T he aim of this study is to synthesize nanoTiO2 fillers for use in
the fabrication of experimental dental nano-composites and
to evaluate their properties, including surface and mechanical
properties. Modern contemporary dentistry has changed
drastically in restorative solutions with introduction of resins
resulting in ebbing out of silver amalgam. In the evolution of
composite materials, their fillers changed fundamentally and
led to introducing nano-composites. As an inorganic additive
of resin composites, TiO 2 has many promising properties. TiO2
nanoparticle-reinforced dental resin composites are found to
possess improved micro hardness and flexural strength. The
conjugation of bisphenol A glycidyl methacrylate (Bis-GMA) onto
the surface of nanoTiO2 contributed to improvement in miscibility
between nano-filler and matrix, because the reactive C=C group
of GMA participated in curing of the matrix, and hence resulted
in the enhancement of mechanical properties. For improving
the nanoparticle dispersion and increasing possible interactions
between nanoparticles and methacrylate matrix, the surface of
the nanoparticles was modified with aminopropyltriethoxysilane
(APTES) silane coupling agent. The surface modification of
nanoparticles was confirmed by SEM, TEM and FTIR. The
functionalized nanoparticles were then inscribed in 0, 1 and 2
weight percentages into resin matrix. The tensile strength of
final material was improved by more than 100% upon addition
of 2 wt% of modified TiO2 nanoparticles as compared to neat
resin matrix. The composite coatings also have good resistance
towards various bacterial and fungal stains as compared to
unfilled material. The coatings substantially gain hydrophilic
nature symbiotically with TiO2 content suggesting its potential
application as self-cleanable material. TiO2 nanoparticles are
derived from a plant extract and possess the above properties.
This green synthesis of nanoparticles is done by usingmicrowave
technique instead of using conventional time consuming
techniques. The flexural strength and modulus of the nano-
composite resin is increased by 20- 30% as compared to the
resin without nano-fillers. Enhanced mechanical properties and
decreased polymerization shrinkage of nano-composite resin
using TiO2 nanoparticles has a great potential for treating tooth
decay or dental carries and its prevention and thus the most
available commercial product for dental restorations could be
improved by the addition of nanoTiO2.
Synthesis of Light Curing Nanocomposite Resins Filled
with Surface Modified TiO 2 Nanoparticles and Their
Characterizations
Dipika Raorane1, Suhas Pednekar1, Ramesh Chaughule1 and Rajesh Dashaputra2
1Department of Chemistry, RamnarainRuia College, India,
2Dental Department, Bhabha Atomic Research Centre Hospital, India
J Dent Craniofac Res 2018, Volume 3
DOI: 10.21767/2576-392X-C3-009