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Cancer remains a significant global health concern, and while strides have been made in various medical domains, its potential correlation with dental curing lights warrants thorough investigation.This comprehensive review explores the evolution and utilization of photo-curable resin composite (RC) restorations, a cornerstone of modern dental practice, and the pivotal role of light-curing units (LCUs) in their application.The enhanced mechanical properties and superior esthetic outcomes of RC restorations have led to their widespread adoption, reflecting evolving patient preferences towards minimally invasive and cosmetic appealing dental treatments.However, the efficacy of RC restorations is intrinsically linked to the proper usage of LCUs, highlighting the critical importance of understanding their characteristics and correct application.Despite advancements in curing light technology, discrepancies in output descriptions and usage persist, potentially compromising the quality and longevity of dental restorations.The meeting of key opinion leaders and manufacturers in 2014 yielded invaluable recommendations for selecting and utilizing curing lights, emphasizing factors such as regulatory compliance and the adoption of standardized output metrics.The historical progression of curing light technology, from UV radiation-based devices to modern LED-based units, underscores a continual pursuit of safer, more efficient solutions for dental procedures.Nevertheless, concerns regarding potential health risks, including cancer, persist, particularly concerning prolonged exposure to blue light and the generation of free radicals during the curing process.While current evidence suggests that curing lights are generally safe for clinical use, ongoing research is necessary to elucidate any long-term implications and mitigate potential risks.
Sharma et al. (Sat,) studied this question.