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Further osteotomy is finished with reamers following Inferior Alveolar Nerve block for pain control. A 5.9x8 mm implant is not completely seated (insertion torque >60 Ncm; Fig.3,4; arrowhead: the apical end of the osteotomy).
Why is the implant not completely seated?
First of all, the bone density at the site of #31 is much higher (Fig.4 black *) than that around the neighboring teeth (while *). Second, a 5.3x8 mm drill and 5.9x8 mm one if needed should have been used prior to implant re-insertion.
There are 2 distal roots of the tooth #30 (Fig.4). There is more bone resorption as related to the distobuccal one.
Xin Wei, DDS, PhD, MS 1st edition 04/13/2015, last revision 04/13/2015