Part of Osteogen plug (Fig.13 O) is stretched to cover the mesially placed allograft (Fig.14 G).  One quarter of Collagen plug is placed over the Osteogen plug (Fig.13 O) before 4-0 PGA suturing.

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Xin Wei, DDS, PhD, MS 1st edition 10/11/2019, last revision 12/28/2019