Your bleeding will be controlled before you leave the office.  It is
normal to have a little oozing for up to 12 hours--I'm talking about a
little blood tinge to your saliva, not big red jelly clots.  Hopefully
John will answer--I think most OMFS are still using some ultrashort
barbiturate for putting you under.  A local anesthetic will doubtless be
used as well, and you should be given appropriate postoperative
instructions and pain meds.  Generally you can't have anything by mouth
for at least 8 hours before the procedure, so you'll have little or
nothing to throw up.

Steve

The most common method to induce a state of deep sedation/general
anaesthesia in an office (not hospital operating room) is intravenously with
a benzodiazepine (ie. sleeping medication, like diazepam or midazolam), plus
an opioid (ie. pain killer, like fentanyl, demerol, remifentanyl).  On top
of this, many practitioners add a medication to induce unconsciousness, the
most common by far being propofol.  Barbiturates are not really used much
anymore since propofol has been introduced, unless you are an old-timer.
You may also receive nitrous oxide (laughing gas) during all of this as
well.  This technique will allow you to leave the office (with a responsible
adult), within a short time after the surgery.  In most cases, patients
remember little, if anything, after the medications are given intravenously.

Can't say for sure if this technique will be used for you.  Some
practitioners employ a separate anaesthetist with endotracheal intubation
and maintenance with volative gas anaesthetics, such a sevoflurane or
isoflurane.  However, this technique is far less common out of hospitals.

Morphine is generally not used in out-of-hospital situations....its duration
of action is too long.  Remember, you will also be receiving local
anaesthesia for the injections.  You will probably still be numb by the time
you take your first oral pain-reliever that your surgeon should recommend.

Dr. Steve answered the bleeding part of your question.

John