Fig.11: For the advancement of the palatal flap (white arrow) to close wound around the implant (I), two release incisions are made (black arrowheads) in addition to the periosteum being underscored (dashed line). Both the buccal and palatal flaps are apparently ischemic to a small degree (purplish).  Manipulation of the flaps does compromise circulation, which may be related to delayed wound healing postop.  Flap surgery has generally more risks than benefits.

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Xin Wei, DDS, PhD, MS 1st edition 12/30/2012, last revision 02/23/2014