The trauma is related to the cantilever FPD of #38-31 and missing #18 and 19 (Fig.1).  It is necessary to place implants at the sites (Fig.2,4).  Short implants are expected.  Guide should be helpful.

Occlusal Trauma Last Next Xin Wei, DDS, PhD, MS 1st edition 08/23/2018, last revision 08/23/2018