After extraction of the 2nd molar with buccal fistula (Fig.1), osteotomy is initiated beyond the socket for 4 mm (Fig.2,3).  The initial osteotomy seems to be mesial.  Red dashed line: Inferior Alveolar Canal.

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Xin Wei, DDS, PhD, MS 1st edition 07/06/2018, last revision 07/06/2018