1 research outputs found
An In-Vitro Evaluation of Microbial Adhesion on Different Types of Orthodontic Brackets
Introduction: Information regarding the adhesion of bacterial
species and plaque accumulation to bracket material is limited.
Adequate information is needed in order to offer patients
orthodontic treatment without significantly increasing their risk
of developing white spots, caries, or gingival inflammation.
Aim: To determine the levels of the caries-inducing S. mutans
species on metallic, self-ligating and ceramic brackets and
to compare the total bacterial counts and counts of species
present on these bracket materials.
Materials and Methods: By means of an in-vitro study, six
commercially available bracket systems {3M Gemini (A),
American Ortho (B), Ormco (C), Begg (D), Ceramic (E) and
Self-ligating (F)} were compared. The brackets were bonded in
the cell well culture plate and the agar plates were prepared.
Brain heart infusion medium including bacteria and artificial
saliva was introduced to each bracket system containing 10
premolar brackets and were incubated. After 72 hours, the
adherent bacteria were then detached by sonication and the
Colony-Forming Units (CFU) of Streptococcus mutans were
calculated on each bracket and were analysed using Statistical
Package for the Social Sciences (SPSS) software version 17.0
for Windows.
Results: Between the different bracket types, significant
differences were found in terms of biofilm formation. The Begg
brackets showed the least bacterial adhesion and the selfligating brackets showed the highest bacterial adhesion and
was statistically significant among all the groups (p<0.05).
Ceramic brackets also showed a higher bacterial adhesion after
the self-ligating brackets. Among the three groups of metallic
brackets, 3M brackets showed the least bacterial adhesion but
was statistically insignificant (p>0.05).
Conclusion: Different orthodontic brackets serve as
different loci for biofilm formation showing that the Begg
brackets are the most hygienic among all the brackets taken
in this study