I don't know if this will help you or not... but this is what I do. I get it in my head that we are going for bloodwork in the morning. I don't make the decision of having the dental until the results of the bloodwork are in. So I trick my mind a little and put the focus on the bloodwork the day before, and as bloodwork isn't as scary, I tend not to get as upset as I do if my focus is only on the dental.
Silly, I know, but it does help me. Sometimes.
