Chin surgery, also known as mentoplasty, is a surgical procedure to reshape the chin either by enhancement with an implant or reduction surgery on the bone. Many times a plastic surgeon may recommend chin surgery to a patient having nasal surgery in order to achieve facial proportion, as the size of the chin may magnify or minimize the perceived size of the nose. Chin surgery helps provide a harmonious balance to your facial features so that you feel better about the way you look.