ArticleRSC advances2025
Functional modification and antibacterial evaluation of orthodontic adhesives with poly (lysine)-derived carbon dots.
Article in RSC advances, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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8 authors.
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Abstract
Fixed appliances used in orthodontic treatment make oral hygiene difficult to maintain, leading to bacterial adhesion around brackets and consequently resulting in white spot lesions (WSLs). After the bracket debonding, the residual adhesive is difficult to remove precisely due to its appearance similar to tooth enamel. In this study, we successfully synthesized small-sized and highly active PL-CDs by one-pot pyrolysis using ε-poly-l-lysine as a precursor. It was incorporated into orthodontic adhesives for multi-function modification. Based on our experimental results, the 3 wt% PL-CDs modified orthodontic adhesive exhibited excellent antibacterial properties and color identifiability. The addition of 3 wt% PL-CDs did not affect the biocompatibility and mechanical properties of the adhesive, and the cell survival rate was up to 80%. Therefore, this study provides a new strategy to solve the two major problems of enamel white spot and adhesive removal in the process of fixed orthodontics, and has important clinical application.
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