Gonion

The gonion is an anatomical point located at the lower back corner of the jawbone (mandible), where the lower border of the jaw angles upward toward the skull. It serves as a key reference point in craniofacial measurements and orthodontics. Clinicians use the gonion to assess jaw structure, symmetry, and alignment, which are important for diagnosing dental and skeletal conditions, planning surgeries, or creating orthodontic treatments. Essentially, it helps provide a consistent landmark for understanding and evaluating the shape and dimensions of the lower face.