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gagirl gagirl
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10 years ago
When you grasp your lip with your upper teeth you __________ your jaw?
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wrote...
Donated
Valued Member
10 years ago
Protraction
Pretty fly for a SciGuy
wrote...
10 years ago
Protraction of the jaw would be to create an under-bite. (protrusion of mandible)
Retraction of jaw would then be creating an over-bite.

So, I believe your answer would be Retraction (as you are using your upper teeth to bite on your lower lip.
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