The flaps do not completely contact the implant when they are sutured. The wound needs protection during the initial postop stage. One of modes is to use perio dressing. The latter is not retentive in the distal edentulous area. Addition of a short abutment (Fig.7 A) over the implant should increase the retention of perio dressing (Fig.8) while micromovement of the implant is minimal.
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Xin Wei, DDS, PhD, MS 1st edition 03/17/2013, last revision 12/16/2018