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The upper left 1st molar is extracted with sectioning. The septum is large. A surgical fissure bur is used to initiate an osteotomy in the middle of the septum (Fig.1 <). P: palatal socket, MB: mesiobuccal socket. In fact Clindamycin-soaked gauze is placed in each socket while initial osteotomy is forming.
Xin Wei, DDS, PhD, MS 1st edition 05/29/2013, last revision 06/22/2014