Fig.1 (CBCT sagittal section), Fig.2 (coronal section).  The size of the implant at #14 should be 5.3x14 mm.  To place an implant at #12 (Fig.2) according to the trajectory of the stent, it should be shorter and smaller in order to avoid the buccal plate perforation.

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Xin Wei, DDS, PhD, MS 1st edition 10/04/2015, last revision 07/02/2017