Awhile back i had gotten two fillings in my top two back teeth. Apparently the filling on the left side came out and the tooth became decayed. I wouldn't have noticed this because there was no pain until it broke and cut into my cheek. My attention hasn't been on my teeth in awhile because of several surgeries, which I'm on my way to another. I'd like to know what the dentist is possibly going to do and whether i could be put to sleep during it as I am highly anxious at the dentists'. Thank you very much for your answer!