This document provides information on professional tooth whitening for dentists, including: 1. It discusses indications for whitening like discoloration from age, diet, fluorosis, or tetracycline and recommends screening patients for suitability. 2. It explains the science behind carbamide peroxide and hydrogen peroxide whitening gels and recommends using 10% carbamide peroxide for patient safety. 3. It provides tips for dentists on assessing patients' shade, taking photographs, offering whitening, and increasing uptake in their practice.