Buttressing bone formation is:

# Buttressing bone formation is:
A. Congenital abnormality
B. Occurs endosteally
C. Occurs periosteally
D. Due to trauma from occlusion

The correct answer is D. Due to trauma from occlusion. 

- When excessive occlusal forces resorb bone, the bone attempts to reinforced the thinned bony trabeculae with new bone. This attempt to compensate for lost bone is called buttressing bone formation - may be central or peripheral. Peripheral butteressing boine formation is also called lipping. 

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