CLKD, I really like my ultra soft toothbrush.
Ariadne, I think even with general anaesthetics the 'starvation' time is shorter than it used to be. Will you be seeing your dentist more frequently than usual about your tooth. ? I think if waiting doesn't make the surgery more complicated and you are not having any problems with the tooth then it's worth waiting. It's a good idea to ring about cancellations.