A<unk>  is a form of<unk>  performed on the lip. The<unk>  frenulum often attaches to the center of the upper lip and between the upper two front teeth. This can cause a large gap and gum recession by pulling the gums off the bone. A<unk>  removes the<unk>  frenulum. Orthodontic patients often have this procedure done to assist with closing a front tooth gap. When a denture patient's lips move, the frenulum pulls and loosens the denture which can be uncomfortable. This surgery is often done to help dentures fit better.
Labial frenectomy
Scleral reinforcement surgery
Metoidioplasty
Lingual frenectomy
Hemispherectomy
Hemicorporectomy
Astragalectomy
Frontal sinus trephination