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Remove the residual root (Fig.1'' red) except the buccal socket shield (S). Conduct sinus lift with Sinus Approach Kit/Water Lifter or Magic Lifter. Use allograft with PRF and dummy implant for lifting gradually in depth and in amount.
Xin Wei, DDS, PhD, MS 1st edition 06/05/2020, last revision 06/07/2020