Going to the Dentist is one of my worst phobias! I take Xanax, and have had "laughing gas" several times with no ill effects what-so-ever. Have you had a root-canal before? If not, try to relax, they are no worst than a filling. Generally takes only about 1/2 hour. Also, I take a portable CD player with me and listen to music while having the work done, helps me keep my mind off whats going on. Good Luck!!! :)
