Chin Augmentation Westchester, also known as genioplasty or mentoplasty, is a cosmetic surgical procedure designed to enhance the shape, size, and projection of the chin. It is often performed using a biocompatible chin implant or through surgical advancement of the patient’s own bone. This procedure can significantly improve the contour of the lower face and neck and is often combined with rhinoplasty (nose surgery) or neck liposuction for optimal facial proportion.