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After the tooth #30 is extracted, the socket is 18 mm deep and the lingual plate is 4 mm tall. With hemorrhage, visibility of the socket, especially the bottom, is poor. The septum is almost completely defective. Following removal of the most buccal portion of the septum, osteotomy is initiated as buccal as possible, but it is mesial (Fig.1).
Xin Wei, DDS, PhD, MS 1st edition 06/26/2017, last revision 07/21/2018