After giving them $12, 000.00 I can chew. They're oral surgeon is terrible. Now, still having problems, I go in, and supposedly dr. chan did something that made things worse. Then I get a bill for another $322.00. I'm not paying it. When I told them that I wasn't going to pay it, just this morning, they have already turned it over to a collect agency. Well, have fun trying to get it. I would never send anyone to aspen. I complained to dr. chan 2yrs ago about the implants the oral surgeon put in. Now, to wear the dental, they cut my gums and tongue. I can't chew and the teeth do not line up.