That's Incredible: Mother Needs Jaw Replaced After Chewing Too Much Gum

A mother-of-four who chewed gum for seven hours a day has worn-out her jaw.

The habit wrecked the joints at the side of her mouth leaving her unable to open it more than 1 centimetre, she is facing a major operation which will cut into the side of her face to replace the joints with metal plates.

"I never dreamed what I thought was a harmless and healthy habit could be so damaging,” she says  “there was no warning on the packets that gum should only be used for a certain amount of time.”

NZ Herald