Comparative Evaluation of Antibacterial Effects of Nanoparticle-Incorporated Orthodontic Primer: An In Vitro Study

Aim and Objectives: To compare evaluate the antibacterial efficacy of various nanoparticles incorporated in orthodontic primer with that conventional antimicrobial agents at different concentrations on Streptococcus mutans ( S. mutans) strain. Materials Methods: Transbond XT Primer was mixed 2.5% 5% benzalkonium chloride (BAC), 0.2% chlorhexidine, 1% 3% titanium dioxide (TiO 2 ) nanoparticles, 0.5% nanohydroxyapatite, silica-doped nanohydroxyapatite powders. Antibacterial activity against for all materials evaluated by disk diffusion method periods 48 (T1) 72 (T2) hours. Results: There a significant increase modified addition agents. The highest zone inhibition observed (11.03 mm) among which similar to used our study. Conclusions: • Among groups, BAC concentration showed activity, least exhibited TiO nanoparticles. Silica-doped expressed greatest All sustained even after