Introduction: Notwithstanding progress in caries prevention methods, averting
enamel demineralization during orthodontic treatment remains a significant challenge
for clinicians. Orthodontic treatment primarily aims to improve both dental and
facial aesthetics, yet protecting the enamel from demineralization continues to be a
critical concern. Aim: This research aims to assess the enhancements that occurred
around orthodontic brackets as a result of the application of Casein Phosphopeptide
Amorphous Calcium Fluoride Phosphate (CPP-ACFP) varnish, as well as to investigate
the impact that this varnish had on the shear bond strength of orthodontic composite.
Materials and Methods: For the purpose of this in vitro experiment, enamel specimens
were randomly assigned to two primary groups, with each group consisting of twenty
specimens. The groups were determined by the surface treatment that was applied to the
enamel. In Group I, which served as the control group, there was no surface treatment
applied, but in Group II, the surface was treated with CPP-ACFP varnish. After then,
each group was divided into two subgroups, each of which contained ten specimens.
Subgroup A was subjected to a pH cycling procedure, whilst Subgroup B was immersed
in a Streptococcus mutans suspension. Results: CPP-ACFP varnish groups showed
the greatest resistance to discoloration represented by the least color change without
significant effect on shear bond strength. Conclusions: Using CPP-ACFP varnish in
orthodontic treatment demonstrates potential benefits specifically in reducing white
spot lesions and maintaining bond strength.