Abstracts Book - IMRC 2018

• SWMC-P016
TiO2, Al2O3 , ZrO2 AND ZnO AS BIOMATERIALS FOR
ANTIBACTERIAL APPLICATIONS IN DENTISTRY
Beatriz Adriana Andrade Espinoza 1 , Alejandro Perez Larios 1
1 University of Guadalajara, Ingenierias, Mexico.
Nanotechnology has offered great possibilities in various fields of science and
technology. Medical applications of nanomaterials can help to solve many
important medical problems. In the last 10-year numerous applications for
nanotechnology in dentistry have been use to promote various therapies such
as: tissue regeneration, development compounds that stimulate responses in
the body and to generate antimicrobial effects on dental materials. Oral cavity
is a dynamic environment that presents a unique bacterial flora, where over 500
different bacterial species have been identified. The use of engineering
nanomaterials in dentistry it may be promising for infection control and
management of oral biofilm. The antimicrobial activity of metals such as silver,
titanium, zinc, copper, gold, has been know and applied for centuries each
having various properties, potencies and spectra of action. Physicochemical and
morphological characteristics of nanometals have been proven to exert an
effect on their antimicrobial activities. For example: positive surface charge of
the metal nanoparticles facilitates their binding to the negatively charged
surface of the bacteria which may result in an enhancement of the bactericidal
effect, shape and size also have influence in their antimicrobial effect. But all
these materials are found to be capable of killing bacteria. Metal oxides like
Nano-sized ZnO, TiO2, ZrO2 or Al2O3 can be incorporated into dental materials
to improve the antibacterial capacity of these materials.
Keywords: Nanomatetials, Antibacterial materials, mixed oxides
Presenting authors email: bt.andra@gmail.com