The upper right 2nd molar has severe bone loss (Fig.2, bitewing X-ray).  The lower 3rd molar occludes obliquely (arrow) with the affected tooth (occlusal trauma?).  This image may give us hint when an immediate provisional is being fabricated.

Palatal Socket

Xin Wei, DDS, PhD, MS 1st edition 12/25/2014, last revision 12/25/2014