It appears that the implant at the 1st molar site is also placed buccal (Fig.10 <) and/or the implant too large for the site.  Therefore there should be a 2-3 mm buccal gap before and after implant placement.  Separation and reflection of the buccal flap allows better visibility

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Xin Wei, DDS, PhD, MS 1st edition 10/03/2017, last revision 08/19/2018