Wow! After reading several amazing reviews I was still very nervous about getting my teeth whitened. I was worried about my dental work matching my natural teeth and I was extremely worried about sensitivity. I am very happy to say that my teeth are very even in color, (even with multiple locations that are cosmetic), and I only experienced slight sensitivity in my last 3 minutes of the extra strength whitening process. It went away as soon as I moved the light! Meredith is like a well oiled machine, she knows what's she's doing and she is very quick, informative, and sweet! I highly recommend White Teeth AZ!