After shown loss of the buccal plate (Fig.2,3), the patient agrees to have socket preservation with allograft (Fig.5,6 *) and BioXclude (Fig.4 >).  The suspected residual root is not explored considering the 2 sinus tracks being associated with the lesion of #23 (Fig.2,3).

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Xin Wei, DDS, PhD, MS 1st edition 11/16/2019, last revision 01/01/2020