We go to All Smiles Dentistry in Allen at 75 and Bethany. I'm not sure about the first time, but my husband and I tell them we don't want them anymore, and we just watch a 2 minute video about why x-rays are important, and we move forward. Video doesn't change our mind, as we really don't feel the need to have the darn x-rays. So, we get our teeth cleaned like normal, but without the x-rays! Like I said, I'm not sure if they can take on a patient without ever doing x-rays, like for the first time, but I know we don't have to have them anymore. Their website is www.numberonedentist.com. Great, great dentist there! Good luck!