Impact of toothbrushing on aesthetic and mechanical properties of hydrophilic antibacterial coating materials for orthodontic clear retainers.

ABSTRACT: This study aims to analyze the aesthetic, mechanical, and antibacterial properties of clear retainer materials with an antibacterial coating. Specifically, it evaluates whether the coating can retain its effectiveness after repeated toothbrushing by assessing material integrity, surface roughness, and bacterial adhesion in vitro. Four types of 1.0-mm thermoplastic sheets widely used in orthodontic clear retainers were tested: PUL (Magicfoil R, Osstem, Korea), PUC (Magicfoil R with a hydrophilic antibacterial coating), PUZ (Zendura, Bay Materials, USA), and PET (CA Retention Foil, Scheu-Dental, Germany). The PUL, PUC, and PUZ sheets were composed of polyurethane (PU), whereas the PET sheets were made of polyethylene terephthalate glycol (PETG). Flexural strength, tensile strength, and cycli

SUBMITTER: Oh YE 

PROVIDER: S-EPMC12644521 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature