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One of my first cases was a charming woman of about 70 with bad breath. According to her
account, her grandchildren refused to hug and kiss her because of her breath. I
met her in the clinic of a colleague (Dr. Arieh Kaufman) and we took her dentures and put
them in a plastic bag. After several minutes, her oral odor was reproduced within the bag.
In this manner, we were confident that her dentures were to blame.
With time, dentures often develop a characteristic smell. After all, they are pieces of
plastic left in your mouth for years and years. They come in continual contact with
saliva, food, drink and billions of bacteria. Usually, it is not enough to just brush your
dentures and stick it back in the mouth (although brushing is important). Unless your
dentist advises otherwise, take your denture(s) out at night, and leave them soaking in an antiseptic solution (several commercial varieties are
available) while you sleep. Disinfect and deodorize your dentures, rather than have them
dry out in your mouth during the night and develop a film of dried saliva, debris and
bacteria. If your dentures already have odor, ask your dentist to treat them in an
ultrasonic bath, with some cleaning solution thrown in. Dr. Kaufman did this trick with
the grandmother's dentures, and the odor was dramatically improved within minutes.