since yesterday half of my head has velt numb. i had 4 teeth extracted and one of the teeth took 45 minutes to come out , but the tooth that took so long seems to still have a good portion in my gum. dentist said is should come out on its own and its in pieces, but with my tungue and fingures feel some of my tooth and its a big piece . could that be why i can t feel half of my head. should i go back and have the rest exctracted or just wait for it to come out. its in deep and causes some pain compaired to the other three.