I agree with that OTC whitening CAN be both effective and safe. Yet here are advantages to PROFESSIONAL whitening:
Stronger concentrations: We simply have stronger concentrations of whitening agent. Concentrations so strong that we must isolate the soft tissue (mucosa) and other surrounding tissue. Without having this the tissue would 'burn'.
Time advantage: Many people don't want to mess with trays and messy gels for two weeks at a time or more. In this society, the in-office professional whitening represents time-saving and convenience.
Consultation or Exam prior: We routinely exam the person prior to undergoing whitening procedures. We look for :
- Undiagosed disease (like periodontal disease) or oral cancer screening
- Old restorations that will not whiten. Many people sometimes forget that they had old bonding done or crowns placed (and they won't whiten)




