Fig.5 (buccal view),6 (distal view): The thin septum (Fig.5 <) is removed with the extracted tooth, which suggests that the socket is single and large.

The crack line extends until the coronal portion of the root (Fig.6 <).

Bruxism & Crack

Xin Wei, DDS, PhD, MS 1st edition 12/22/2014, last revision 12/22/2014