Microbrush bristle remnants on the bonding surface using different adhesive systems by scanning electron microscope: An in vitro study

Abstract

Background: The shelf life of dental restorations relies primarily on the adhesion between tooth
and restorative material. Numerous dental adhesive systems have been developed to play a crucial
role in enhancing this adhesion. However, the presence of any residues while applying adhesive
systems may compromise the adhesive seal, affecting the properties of dental restorations. Thus,
this paper aims to assess the presence of microbrush bristle remnants on bonding surfaces using
total‑etch and self‑etch adhesive systems.
Materials and Methods: In the present experimental in vitro study, 12 extracted permanent
maxillary premolar teeth were decoronated and divided into two groups (n = 6). Application of
self‑etch adhesive system (Seventh generation) was made on the prepared specimens with the
help of microbrush (Cotisen) for group I, and total‑etch adhesive system (Fifth generation) was
applied on the prepared specimens for group II with the same brand of micro brush (Cotisen).
Each group received a standardized polymerization process. The bonding surfaces of samples were
then analyzed to determine the microbrush bristle remnants. An independent sample t‑test was
applied to compare the mean bristle remnants between the two groups. P value was set at 0.05
(at a 0.05 level of significance).
Results: Self‑etch adhesive system had a greater number of microbrush bristle remnants than the
total‑etch adhesive system, but the difference was not statistically significant.
Conclusion: Irrespective of the different adhesive systems being used; microbrush bristle remnants
were seen in both groups.
Dentists should be cautious to avoid contamination of adhesive surfaces.
The presence of bristle remnants might influence the shelf life of the restorations.
Key Words: Adhesive systems, bonding agent, microbrush bristle remnants, scanning electron
microscope, self‑etch adhesive system, total‑etch adhesive system

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 Shraddha Padwal: Pubmed,Google Scholar