yes...that is the buccal side of the tooth...You need a new filling...Usually when the tooth hurts...it's too late for just a filling..you will need a root canal or extraction..So have it filled...It will save your tooth, time, money and Pain..Good luck.sexypeanut · 8 years ago. Thumbs up.eport Abuse. yes...that is the buccal side of the tooth...You need a new filling...Usually when the tooth hurts...it's too late for just a filling..you will need a root canal or extraction..So have it filled...It will save your tooth, time, money and Pain..Good luck. sexypeanut · 8 years ago. Thumbs up.