From minute 2' 22'' you can see the procedure itself
ESTABLISH MILLER CLASS
Bone sounding through the sulcus (interproximal peaks of bone & labial bone) with a periodontal probe, to establish a Miller class, only on class I & II defects can you expect total root coveragge.
To perform the semilunar technique you have to have 2-3mm of remaining keratinized tissue.
ROOT’s CONDITIONING
Root debridement
Tetracyclin paste, mixed with sterile water, during 3 mins
INCISION
Semilunar incision on the mesial apsect, at the mucogingival junction, from the line angle on the mesial to the line angle on the distal aspect. This is a sharp dissection down to the periosteum. Then sulcular incision until it communicates all the way through the semilunar incision. It doesn't extend to the papillae.
SUTURE
vertical sling mattress suture, 2 passes at the back of the tooth
perfuration of the flap at the ends of the incision, below, in order to coronally advance the flap