This doctor treated my crowded bottom teeth using 10 months of wire braces and a planned 5 or so months of Invisalign. After a short period on the Invisalign, I started getting severe neck pain, and was diagnosed with TMJ. I started seeing a TMJ physical therapist ad the advice of my physiatrist. My jaw is visibly misaligned. When I told Dr. Petrarca, he said my jaw is fine and it had nothing to do with the treatment. He was extremely defensive and angry and had no empathy about my situation. I am now out of invisalign and waiting for my non-active retainer. Dr. Petrarca is a backward thinking dentist who does not know how to handle difficult situations.