Much as how removal and excision can help bring balance to the profile of a face, addition and augmentation can do the same. This often happens in the form of mandible augmentation, where addition happens in the chin or cheek. This procedure can either be done on its own or in conjunction with a nose-reduction or a facelift. The implant used in augmentation is either the patient's own bone or cartilage or synthetic material. The use of the synthetic implant is more common and results in a simpler operation, but it does mean the introduction of a foreign body into the face. However, implants of the patient's bone also carry risks: infection or reabsorption, though both circumstances are highly unlikely. The incision and implantation are performed under the chin, in the eyelid, or inside the mouth. Implantation through the mouth is used to avoid an external scar, but this process also increases the risk of infection.

This procedure is performed under local or general anesthesia on an outpatient basis. Recovery takes about four to ten days, during which the patient should avoid unnecessary facial movement, limit talking, and only eat soft foods. Tape will be in place for a week, but sutures won't be removed as they will dissolve internally.