Chin
The morphology of the chin can also be improved by non-surgical techniques involving the injection of hyaluronic acid. The chin can also appear dented or irregular due to overactivity of the chin muscle. The chin can be smoothed using botulinum toxin. Chin shape correction is sometimes combined with rhinoplasty as part of a profiloplasty and/or jaw surgery (maxillary and/or mandibular osteotomy).