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To prevent further postop buccal gingival recession at #30, socket shield is formed with removal of the residual roots (Fig.1,2 *). Osteotomy is initiated in the septum (Fig.2 S, to be flattened with bone trimmer and surgical round bur) and gradually slides slightly into the mesial socket in spite of using surgical guide (Fig.3 *: sleeve).
Xin Wei, DDS, PhD, MS 1st edition 11/18/2019, last revision 12/23/2019