I purchased a Groupon 20 minute trial. I called his office twice leaving voice messages and sent him one email to schedule an appointment. I did not hear back form him. I scheduled an appointment online and he showed up at his office 20 minutes late with not even the slightest mention of an apology for his tardiness. I said that I thought my appointment was at ten not ten thirty. His response, why do you have a time restriction? The guard that is placed in one's mouth to keep it open hurt. As i mentioned this he said he put in a small and that the pain was just mental and asked if I could deal with it. The 20minutes went by quickly, and I left with a very sore upper jaw and a headache. I will not return.