Ball Abutment Posterior or Anterior to Mental Loop

Following placement of a 3 mm 1-piece implant at #26 and two 3.8 mm 2-piece implants with ball abutments at #20 and 21 for a lower edentulous patient, another implant with ball abutment will be placed posterior (approximately at #30, Fig.1,2 (for better spread)) or anterior (approximately at #28, Fig.3,4).  The implant will be placed buccal (Fig.2) or lingual (Fig.4) to the Inferior Alveolar Canal or Incisive Canal (safer).  Or an implant can be placed at #27, in which there have been 2 implant failures.  The last implant was removed 3 months 20 days earlier.  Make an incision, study whether the site of #27 has healed with solid bone.  If an implant has to be placed at #28, dissect the Mental Nerve first.  When stability is low, bury the implant.

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Xin Wei, DDS, PhD, MS 1st edition 03/27/2018, last revision 04/07/2018