Not necessarily: An extended (protruding) jaw can be part of the normal facial shape a person is born with. It can also be caused by inherited conditions. It may develop over time in children or adults. It is appropriate to see a dentist or orthodontist to treat abnormal alignment of the jaw and teeth. Your kid's doctor should be involved to check for any underlying medical associatecd with prgnathism.
Answered 11/14/2015
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