Chin implants, AKA mentoplasty, uses prosthesis to augment the shape of the chin and lower jaw. They are made of materials including silicone, acrylic, Gore-Tex and hydroxyapatite and come in a variety of lengths, thickness and heights. The surgeon makes a small incision below the chin. The skin is raised and the implant is placed in a pocket. The implant can be secured to the bone or soft tissue by sutures or screws. The surgeon uses tissue-layered sutures to close the incision. Another technique makes an incision in the mouth to create a pocket in front of the jawbone. The implant is placed in the pocket and sutured closed. This method increases the risk of an infection and superior displacement.