Eleven months post immediate implantation, the implant at #8 (4.5x16 mm) is found to have thread exposure buccally (Fig.1) and distally (Fig.2).  A smaller implant (e.g., 3.8 mm) placed more palatally would be less likely associated with periimplantitis.

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Xin Wei, DDS, PhD, MS 1st edition 07/26/2018, last revision 07/26/2018