Good morning , doctor . I've been suffering very much from a toothache lately .   Well , let me have a look . Will you sit down in this chair and open your mouth wide ?   I think one of the back ones at the top is giving me the most trouble .   Yes . This big one is badly decayed . I'm afraid it must be taken out .   Oh , I hate having teeth pulled out . Will it hurt ?   No need to worry . You won't feel anything at all . I'll give you an injection to stop the pain . Just wash your mouth out with this water , will you ?   Will it take long ?   No , it'll be over soon . Nurse , get some X-rays of our patient's molars . Then we'll start . Open your mouth wide . Don't be so nervous . Now open wider ... now stay , that's over ... 