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The distal and mesial (Fig.6 M) flaps are approximated (arrows without suture) as much as possible as well as lingual. 4-0 Polyglycolic Acid suture is used. The distal incision is not suture (Fig.5 D ^) so that the flap is able to be moved mesial.
Xin Wei, DDS, PhD, MS 1st edition 07/15/2020, last revision 07/15/2020