Does it hurt when dentists clean your teeth?

Well in my country the dentist will get some cotton bands and then put some anesthesia then she will put it in your gums after that she will give you a shot in your gums about two times then she will just try too pull it out...but in U.S i think she will just give you a shot i dont really know because i havent been in the dentist here but i might go to the dentist here in U.S because my mom might send me because im going to show her my teeth one of my tooth hurts so yeah...hope this helps