Sabine answered Thursday May 3 2007, 7:35 pm: Your teeth are formed in your jaw and they stay the same physical size other than two factors: first, they can appear to grow longer because the tooth is pushed up from the root. They can appear longer if your gums recede. Second, they can grow shorter through wear and tear, especially as you grind them.
However, after they've erupted from your gums, they are not going to get wider or thicker or longer, but they may shift positions, turn, and more of the tooth can be exposed at different times.
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