Dear Janet, I know this is off topic but
I have read too many tragic stories about anesthesia going wrong in Dental
Surgeries.  IMHO the best place to have anaesthesia is where there is an
Anaesthetist doing it day in day out working alongside the Dental Surgeon in a
hospital setting with crash care to hand and not a Dental Surgeon in a surgery
on his own or with the help of an Anaesthetist doing it once in a while and,
presumably, with no crash service immediately to hand.  When things go wrong
they go wrong very, very quickly.  I apologise for being so direct, I've
stepped over the boundary of a Counsellor but your little chap is too, too
important and the warning signs are already there, you have felt a real need
to share this with us AND the Anaesthetist is not sure ......
Thinking of you. Helen M. Woodman, UK