I had 2 and a half years worth of orthodontic treatment. Toward the end of that time I was set to move to Colorado. When I began my treatment there, they received my x-rays from the beginning of my treatment with Dr. Wilken. They took new x-rays and compared, and my teeth had not moved in the entire course of treatment with Dr. Wilken. I had to begin an entirely new course of treatment for a total of 4 and 1/2 years. No refund on 5,000+ dollars spent. What a waste.