you will need to get the specific "okay" from your dentist to pre-medicate with any narcotic before your visit. while your dentist may only be using lidocaine (novacaine) for your procedure many times they will need to do something else (like nitrous oxide) depending on your response so it would be wise to just ask first. there is unlikely to be a problem with you taking this after your visit.
can i take one vicodin prior to a dental appointment involving injection of novocaine and drilling? . i have problems with novocaine injections. can i take a vicodin prior to going to the dentist?