I had all 4 out when I was in my late teens. I sawthe xrays, they were ALL growing sideways! All 4 of them. Pushing all the other teeth forward.

At the time, the dental insurance I had would not cover the removal, so I went in hospital to have it under the medical insurance coverage instead. I had to stay in hospital ONE NIGHT for it to be covered. Talked with the oral surgeon, and he agreed to let me come in at 6 AM for the surgery, and stay overnight THE NIGHT AFTER. I am NOT a good patient, and saw no point in being in hospital the night before surgery when I didn't need any services, and be at home irritating Mom the first night after the surgery. It worked out quite well! I was miserable and my family didn't have to put up with me.

I don't remember any irrigation or anything like that, though!