conv: I have a dentist appointment tomorrow and it's starting to make me a bit nervous.  I have to get a filling replaced. I am so nervous.  I have to go to the dentist tomorrow to get a filling replaced.  Are you afraid of the dentist? I am!  I had a bad experience with one when I was younger. I'm sorry to hear that_comma_ I'm pretty terrified of the dentist myself. Ask for gas! Good luck_comma_ I'm sure everything will be just fine.