Why does dentures turn blue in a blacklight setting?

Dentures can turn blue under blacklight due to the presence of certain materials, particularly those containing fluorescent agents or additives. These substances can absorb ultraviolet light and re-emit it in the visible spectrum, often appearing blue. Additionally, some denture cleaning products may contain fluorescent compounds that can also contribute to this effect. This phenomenon is more noticeable in environments with UV lighting, such as nightclubs or certain dental offices.