"I had old crowns that just didn't look good - they had dark lines and were overall just really dark. My crowned teeth didn't match the shade of my other teeth. Dr. Powell did LUMINEERS on my six front teeth and just covered up my existing crowns without having to even cut them off, and then he simply whitened the rest of my teeth with the SAPPHIRE whitening process. Now everywhere I go people comment on how beautiful my teeth look. I am just amazed at the transformation."