Extraction of the tooth #19 with large PARL (Fig.1,2) confirms the loss of buccal plate, but the crestal bone exists. After failure to place an implant in the middle socket with removal of the lingual septal bone, socket preservation is done with PRF and sticky bone (Fig.3).
Xin Wei, DDS, PhD, MS 1st edition 05/16/2019, last revision 05/16/2019