There is buccal plate collapse and gingival recession at #4 (Fig.8 *), probably related to buccal placement (buccal plate loss).  Arrowheads in Fig.'8 indicate the future buccal margin of the crown at #4.  Add pink porcelain cervically if necessary.

Provisional Without Prep Last Next

Xin Wei, DDS, PhD, MS 1st edition 03/17/2016, last revision 05/20/2018