DENTIST AND HIS PATIENT

A dentist talks to a patient that he must pair denture to makes the patient always feel comfortable when eating. The patient is a toothless women.
after his job finished, he writes an account about the money that she must paid.
the woman pays the account and then prepare to get out from doctor´s room.
¨hei madame, you´ve paid me a false note! please be back and give me with an original money!¨ said the doctor.
¨sory sir! dont you remember that you have paired a store teeth too in my mouth?¨ answered the woman.