Two weeks later, small incision is made on the crest. Limited exposure
to the crestal bony cut is provided. A curved chisel is used to try to
split the crest. It feels more likely that the lingual plate is fractured.
A starter drill and 2 mm initial drill are used for osteotomy 12 mm deep from
gingival margin (Fig.4 (red line: the superior border of the Inferior Alveolar
Canal)). The 2 smallest bone drills from Esset Kit (Hiossen) are used with
purpose to push the buccal plate
buccally. Sequential osteotomy is finished until
4x13 mm drill with stopper. With soft tissue interference, the depth is
assumed not enough. A 2.7 mm drill is re-used with intention to go down
for 16 mm. Because of soft bone, the drill dropped deeper than expected
(Fig.5).
Xin Wei, DDS, PhD, MS 1st edition 03/12/2016, last revision 08/13/2020