When the chin is out of proportion with the rest of the face it may detract from the attractiveness of the other features. In the extreme, a jaw that is too large or small affects dental occlusion and requires the attention of orthodontists and oral surgeons. Orthognathic surgery to correct more serious problems with the jaw is discussed in the chapter on the teeth.

Even though the dental occlusion is normal, the chin may be out of balance with the rest of the face. it may be recessed or too small, too pointed or crooked, too short or long, or it may protrude too much. The disproportionate chin may be corrected in two ways (if no dental malocclusion exists): a chin implant can be inserted or the bone of the jaw can be adjusted.