Adolescent 1 Adult 1 Carbamide Peroxide 1 Color 1 Dentin Desensitizing Agents 1 Dentin Sensitivity 1 Dentin sensitivity 1 Desensitizing agents Female 1 Humans 1 Hydrogen Peroxide 1 Male 1 Middle Aged 1 Nitrates 1 Potassium Compounds 1 Sodium Fluoride 1 Spectrophotometry 1 Tooth Bleaching 1 Tooth Bleaching Agents 1 Tooth Discoloration 1 Tooth bleaching agents 1 Young Adult 1 adolescent 1 adult 1 adverse event 1 color 1 controlled study 1 dental procedure 1 dentin sensitivity 1 desensitizing agent 1