Marketing For Dentists

What is the best product for whitening teeth in the market also go to the Dentist?
I heard the Crest whitening strips fairly good job along the crest whitening toothpaste and mouthwash. All the other good? and for how long do u use them / thank you!
Crest has worked well for me. I use the Crest Whitestrips Classic (14 days, 30 minutes per day), and results that lasted me 6 months residual spots before eating every day diminished the effect milled. Use good Multi-Care Whitening toothpaste (crest of one to two by two with Whitestrips they would probably be more effective / efficient), and you're ready to go! The Aquafresh tray system was pretty good too, but I did not how the plates feel about the super thin Whitestrips.
Dentist Profits|Ed O’Keefe|Internet Dental Marketing