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After extraction (Fig.6A (occlusal view of the extraction socket)), osteotomy (Fig.6B: red) will be initiated through the septum (S). When an implant is inserted, it may perforate the septum (Fig.6C: green) into the mesial (Fig.6A: M) and distal (D) sockets. The remaining buccal (Fig.6C: B) and lingual (L) septal struts (the rest of two fixation points) contribute to implant stability.
Xin Wei, DDS, PhD, MS 1st edition 03/02/2017, last revision 03/02/2017