I had such a bad experience when I had mine out, I didn't return to the dentist for years. My face was so swollen, I couldn't put my lips together and I had bruising all down my neck for a couple of weeks. I lost 5kgs in a week, which was a plus. I later found out that the surgeon had a really bad reputation and had recently been sued for malpractice after a patient died. All was ok in the end, but I shouldn't have blindly trusted my dentist when he sent me to that maxillofacial surgeon. I should have got a second opinion from another surgeon.
It still sends shivers up my spine thinking about it.