A 2.5x14(2) mm 1-piece implant is placed instead with mildly compromised trajectory (Fig.5). 

With confirmation of the extremely narrow ridge at #23 (Fig.4) and flattening the ridge, osteotomy is initiated (Fig.5).  Initially a 2x14(4) mm implant is placed partially with apparently fracturing the cortical bone (underprep).  After repeated drilling, the implant loses stability (overprep).  After placing bone graft in the osteotomy, the implant achieves primary stability (Fig.6); bone graft is placed (*).  Following suturing, periodontal dressing is applied. 

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Xin Wei, DDS, PhD, MS 1st edition 07/17/2017, last revision 06/02/2018