Minimally invasive temporalis-tendon paralleling transfer (MIT3) is to fix the temporalis-tendon in the perioral area through a tiny incision in the nasolabial fold by paralleling the temporalis-tendon in the direction of the zygomatic-oral angle line, so that the temporalis-tendon can produce maximum contraction under optimal tension. Postoperatively, the temporalis muscle is trained to produce a temporalis smile, thus reconstructing the facial expression. Surgical procedure: A small incision (2-4 cm) is made in the skin at the nasolabial fold on the side of facial palsy, through which the temporalis tendon and the coronoid process of the mandible are revealed Chengyuan Wang, Department of Otolaryngology, China-Japan Friendship Hospital. The temporal tendon was cut 1 cm from the coronoid process of the mandible, the temporalis tendon was freed to the maximum extent, the temporalis tendon was pulled to the corner of the mouth, the tendon was fixed at different subcutaneous sites according to the smile type, electrodes were placed percutaneously in the temporal area, the temporalis muscle contraction was stimulated intraoperatively, the movement of the corner of the mouth was observed in real time, and expression reconstruction was precisely realized. Indications for surgery: Temporal muscle with normal contraction function Normal occlusal function on the side of facial palsy Various causes of inferior and middle facial palsy without nerve anastomosis, trans-facial nerve graft, free femoral thin muscle graft Advantages: suitable for all causes of lower and middle facial palsy less surgical trauma, less surgical complications, quick recovery immediate postoperative results visible, high satisfaction with traditional temporal muscle flap transfer than no temporal depression, no zygomatic not bloated, no preauricular scalp incision, better surgical results. Frequently asked questions: Are temporalis flap transfer and minimally invasive temporalis-tendon paralleling transfer (MIT3) the same procedure? A: These are two completely different procedures. The temporalis flap transfer is a traditional procedure. A preauricular-scalp incision is made and the temporalis muscle is flipped over the zygomatic arch and pulled subcutaneously to the corners of the mouth, and a fascial graft is taken if the length is insufficient. After surgery, the temporal area is significantly depressed, the zygomatic tissue is bloated, and scalp and facial scarring is called obvious. Long-term postoperative follow-up, some of the corners of the mouth need a second surgery due to re-displacement. Minimally invasive temporalis-tendon paralleling transfer (MIT3) is cleverly designed by making only a tiny incision in the nasolabial fold, which happens to be the nasolabial fold after healing. The temporalis-tendon is displaced in the direction of the original alignment, and the contraction force is stronger. Since no fascia grafting is required, there is no postoperative displacement.