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Another PA is taken when a 6x20 mm tap is placed with improved stability (Fig.5). Several intraop PAs are taken to make sure that no paresthesia will occur. The osteotomy depth is long at the site of a lower 2nd molar. Red dashed line: the upper border of the Inferior Alveolar Canal.
Xin Wei, DDS, PhD, MS 1st edition 02/24/2015, last revision 02/24/2015