With better visibility, the initial osteotomy at #25 is extended with change in trajectory to avoid accentuating the buccal perforation (Fig.2).  An angled 3 mm 1-piece implant is expected.  A straight dummy one is tried first, but it cannot be placed deep (Fig.3, underprep, narrow space without much clearance from the neighboring tooth).

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