Evaluation of Antimicrobial Effect of Biologically Safe Selenium Nanoparticles-coated Clear Aligner—An In vitro Study

Author:

D Hemamalini1,Mary Priya Riona1,KM Shahul Hameed Faizee1,Dhayananth Xavier1

Affiliation:

1. Department of Orthodontics and Dentofacial Orthopedics, Sathyabama Dental College & Hospital, Chennai, Tamil Nadu, India

Abstract

Objective To synthesize selenium nanoparticles (SeNPs) from plant extract, characterize them, coat them on clear aligners, and evaluate their cytotoxicity and antimicrobial activity. Materials and Methodology The green synthesis of SeNPs utilized the leaves of Withania somnifera. The biosynthesized nanoparticles are incorporated in clear aligners using sol-gel thin film dip coating method to check for antimicrobial effect against Streptococcus mutans and Lactobacillus species using time kill curve assay. The cytotoxicity of the material was checked using brine shrimp lethality assay. Results The optical density values indicated that the SeNPs-coated clear aligners effectively inhibited the growth of Lactobacillus sp. and S. mutans. Time kill curve assessed in varying concentration of 25 µg/mL, 50 µg/mL, and 100 µg/mL revealed greater antibacterial activity at a lower concentration with increasing time. Conclusion Clear aligners coated with SeNPs had positive antibacterial effects on suspensions of Lactobacillus sp. and S. mutans and are biocompatible.

Publisher

SAGE Publications

Subject

Linguistics and Language,Anthropology,History,Language and Linguistics,Cultural Studies

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