Clinical myths in dental bleaching: an evidence-based structured narrative review.

A structured review of dental bleaching research found that many commonly practiced strategies—including dietary restrictions, preventive painkillers, higher peroxide concentrations, prolonged gel exposure, and light-activation—lack strong clinical evidence supporting their claimed benefits for improving whitening outcomes or reducing sensitivity.

A plain-English summary of the study's own findings — we don't add our own claims or interpretation. Read the full paper for the complete methods and results, and apply your own clinical judgement.