For example, the ‘Rule of thirds’ is based on dimensions and a balance between the forehead, nose, and chin. As a result, the chin is an important part of the face equation. As a result, both a weak chin (retrognathia) and an unduly accentuated chin (prognathism) can detract from a person’s overall appearance. Genioplasty is a technique that is frequently combined with rhinoplasty or nose surgery. An FDA-approved implant comprised of medical-grade silicone or PTFE can be used to augment the chin (polytetrafluoroethylene). These can be applied using a facial approach under the chin region or an over the chin point introrally, which is preferred because it leaves no visible scars.The mentum scar that results is tiny and fades with time.