Metal ion release from orthodontic appliances: Concerns regarding potential carcinogenic effects

Abstract

• Metal Ion Release Concerns: Orthodontic appliances, such as brackets and wires, can release metal ions owing to corrosion processes, raising concerns about potential health risks. • Genotoxic Effects: In vitro studies have demonstrated the genotoxic effects of metal ions released from orthodontic appliances, particularly nickel and chromium, on human cells, suggesting potential carcinogenicity. • Clinical Evidence: Despite in vitro findings, clinical and epidemiological studies linking orthodontic treatment to cancer risk are inconclusive, with some studies failing to establish a significant association. • Regulatory Oversight: Regulatory agencies, including the FDA, have established guidelines for the biocompatibility and safety of orthodontic appliances. Manufacturers are required to conduct biocompatibility tests to ensure patient safety. • Future Directions: Further research is required to elucidate the long-term effects of metal ion release from orthodontic appliances on cancer risk. Quality control measures and regulatory oversight are essential to minimize the potential risks to patients undergoing orthodontic treatment.