Congenital macrostomia repair includes repair of the commissure and the muscles of the cheek and lip. It is usually done between 3-6 months of age.
1.- Cheiloplasty: the new commissure must be defined by measuring the length of the healthy lip or looking at the level of the eyes in cases that are bilateral. By resecting the excess mucosa, the cheek and lip muscles must be reconstruct and closed to improve oral continence and prevent fluid leakage when sleeping and eating. Then the commissure must be reconstructed, and the lip mucosa closed on the inside and the skin closed on the outside, either with a straight line or with a zetoplasty. For more details go to the video https://www.youtube.com/watch?v=i4c34ultWVo