Due to new coronal virus fear, the patient wants extraction first.  The sinus floor perforates (*) apical to MB (Fig.6) and DB (Fig.7) roots.  After debridement, sinus lift will be conducted using allograft hydrated with GEM21S liquid portion.

Defect Area     Last     Next

Xin Wei, DDS, PhD, MS 1st edition 03/17/2020, last revision 03/17/2020