I had 3 teeth filled on Monday afternoon. Two on top and a filling all the way in the back bottom right. The dentist had trouble numbing the tooth and I received several shots of novacaine. I was in much pain and went back yesterday. He filed down the filling and I got some relief. However, my tongue has no taste on the right side. I am still very sore but I think that is just from the shots. I called the dentist again today and was told to give it another week. How long should it take to get the sensation back on the right side?