Osteotomy (Fig.3 (CBCT coronal section of a second lower bicuspid of another patient): O) is initiated in the lingual wall of the socket (S) after extraction. L: mental loop. B: buccal.
A 4.1 mm tap placed at the depth of 14 mm appears to be safe (Fig.4). Red dashed line: upper border of the Inferior Alveolar Canal.
Xin Wei, DDS, PhD, MS 1st edition 03/20/2015, last revision 03/21/2015