I had my extractions today. I was scheduled for 3:00pm, but didn't get called in until around 4pm because my dentists office only has one room with nitrous and someone was already in it.
The extra wait combined with not knowing what the experience would be like made me super nervous. I got called in by the oral surgeons assistant and she had ceramic braces too! She had me sign papers and got me all settled into my chair. I asked if I could have the nitrous started before the injections and she said sure. Next, the oral surgeon came in and introduced himself. He really wanted to take all my wisdom teeth out, but I told him my ortho said I could keep my top ones and he said "fine, but in my opinion it's better to get them all out, they don't make food taste better". I insisted on leaving the top ones alone and that was that. He reviewed my x-rays and then rubbed my gums with some purple analgesic gel on what looked like Q-tips and then left them in my mouth for a little while so it could take affect.
Next they got the nitrous started and I immediately felt a tingly sensation all over my body. It felt like my body was really tired and relaxed. I felt like I was taking a really nice nap, but conscious at the same time.
I remember snorting while breathing through the nose mask and the oral surgeon and assistant both laughed and told me "no snorting allowed".
After a couple minutes the OS did the injections. I felt them, but it wasn't painful. He extracted the upper premolars first and I didn't really feel it and wasn't really paying much attention. I did hear the cracking sound and thought it sounded like a tree branch breaking off of a tree.
My thoughts then wandered all over the place, like imagining myself in my bed taking a nap, thinking about the pictures of teeth and their internal structures from my anatomy book, thinking of my cat, and then remembering what a classmate told me the music sounded like while on nitrous, then realizing I forgot my ipod, but there was a radio on outside the room and I could hear the music, but it sounded normal to me.
Next he did the left bottom wisdom tooth and I don't remember much of that, but after that I started gagging because I felt like something was touching the roof of my mouth. The assistant kept telling me to relax, there's nothing in my mouth, but I felt something and kept gagging for like 2 minutes. The OS said "I'd have the other tooth out already if it weren't for you gagging". They told me that I stopped swallowing and when they said that I swallowed a few times and felt better.
The OS finally got to my last tooth, the right lower impacted wisdom tooth, which was the stubborn one. He mentioned something about it being much harder than the last one and something about a wayward root that didn't show in the xray and it being kind of unusual. I felt lots of pulling with that tooth and I think he might of pressed on my cheekbone for leverage.
Once that tooth was out and the OS was all done, the assistant put gauze in, turned the nitrous off and gave me some oxygen for a few minutes, then sent me on my way with instructions and my pain killer script. I felt a little sad that the warm, fuzzy, sleepy nitrous feeling was over, but I was happy that my experience was pain free.
Now I'm just laying in bed. The cable is out right now which is really disappointing. I'm still having lots of bleeding and am changing the gauze frequently.
Just wanted to share my experience. It wasn't so bad really, but that's easy to say when the pain hasn't kicked in yet.
I trust my ortho and I'm only in the beginnings of treatment so I don't know why I was so worried.
. I'm such a chicken when it comes to needles, blood, pain etc! 
I had to be put out to have my wisdom teeth removed.
Trust me, I was really freaked out at the idea of being awake and aware of what was going on. I really wanted to be put out, but my dentists office doesn't do that. I was so amazed at how relaxed I felt with the nitrous. All of my fear was completely gone within minutes of breathing it. 
