Abstracts Book - IMRC 2018

• SB6-P020
INHIBITION OF THE ADHERENCE OF THE STREPTOCOCCUS
MUTANS WITH NPS ON DENTAL SURFACES OF PATIENT WITH
ORTHODONTICS
Carolina Holguin 1 , León Francisco Espinosa Cristóbal 1 , Simón Yobanny Reyes López 2 , Karla
Tovar 3 , Juan Cuevas 1 , Armando Zaragoza 4 , Alejandro Donohue 1 , Denisse Cabada 1 , Natalie
Lopez 1
1 Universidad Autónoma de Ciudad Juárez, Dentistry, Mexico. 2 Universidad Autónoma de
Ciudad Juárez, Biologyc chemistry sciences, Mexico. 3 Universidad Autónoma de la Ciudad de
México, Dentistry, Mexico. 4 Centro de Investigación en Materiales Avanzados, S.C., Engineering
and Materiales Chemistry, Mexico.
White spot lesions (WSLs) are very frequent alterations during orthodontic
treatments causing demineralization of the dental enamel. Dental treatments
have been developed to prevent WSLs; however, the prevalence and incidence
of these lesions remain significantly high. Silver nanoparticles (NPS) have
demonstrated good inhibitory effects against several microorganisms, but
scarce studies about anti-adherence activity on different orthodontic appliances
surfaces are available. This study determined the inhibitory effect and antiadherence
activity of NPS on the adhesion of S. mutans on surfaces of brackets
and wires for orthodontic therapies. Two sizes of NPS were prepared and
characterized. The evaluation of S. mutans adhesion was performed with
microbiological assays on surfaces of brackets and orthodontic modules in
triplicate. Topographic characteristics of orthodontic brackets and wires were
made by SEM and AFM. All NPS samples inhibited S. mutans adhesion; however,
the smaller NPS had better inhibition than the larger ones. The presence of the
module influenced the adhesion of S. mutans but not in the activity of NPS. The
NPS used in this study showed good antimicrobial and anti-adherence
properties against S. mutans bacteria determining its high potential use for the
control of WSLs in orthodontic treatments.
Acknowledgment: I am grateful to the Universidad Autonoma of Ciudad Juarez
(UACJ) for their support and collaboration as well as to each author for the
realization of this project and in the same way the National Council of Science
and Technology (CONACyT)
Keywords: Adhesion, Silver Nanoparticles, Streptococcus mutans
Presenting authors email: al124919@alumnos.uacj.mx