牙医常用英语会话：拔牙

D: That's fine. Now I'll give you an injection. Please open your mouth as wide as you can. But relax. It won't hurt much. Now you've gotten the injection. Please wash your mouth and spit out the water into the spittoon. If you feel your heart palpitate a little, it doesn't matter. That's the effect of the procaine, and it'll soon be over. Now, do you feel numb? Do you have a sensation of swelling on the lips and the tongue? This tooth is in very bad condition. It needs a careful operation, which may last a little longer than usual. Now, the tooth is out. Please bite and hold the cotton ball tightly in place. Don't spit it out until half an hour from now. You may eat in two hours. But don't rinse your mouth today because it may cause bleeding. Please go to make the payment and get the medicines.