One ear may begin at a higher point than your other ear, or one side of your nose might have a sharper point than the other side. Almost everyone has some degree of asymmetry on their face. But some cases of asymmetry are more noticeable than others. Injury, aging, smoking, and other factors can contribute to asymmetry.
Facial asymmetry increases with age -- ScienceDaily
However, asymmetry in lower facial width remains after distraction because of its inability to increase bone thickness. Therefore, the authors used mandibular outer cortex bone grafting to augment the lower face following distraction to restore facial symmetry. METHODS: From January of to December of , 21 patients with hemifacial microsomia underwent unilateral mandibular distraction followed by mandibular augmentation using mandibular outer cortex bone graft harvested from the normal side. Age at surgery ranged from 7 to 27 years. Facial symmetry was evaluated based on medical photography and radiography with a minimum 6-month follow-up. RESULTS: Mandibular height and length were expanded successfully with distraction, resulting in improvements in chin position and oral commissure level. Lower facial width was increased on the affected side and reduced on the normal side after bone grafting.
A case of facial asymmetry, where the jaw is misaligned off to one side, as seen by the red line. However, there are those whose jaws are naturally misaligned. This can result not only in difficulties in eating and speaking, but also negatively affect their looks.
Three-dimensional digital imaging techniques show a subtle but significant aging-related increase in facial asymmetry, especially in the lower two-thirds of the face, according to the new research by ASPS Member Surgeon Helena O. Using a technique called 3D photogrammetry, Dr. Taylor and colleagues performed detailed scans of the facial surface in volunteers, who ranged in age from four months to 88 years. The researchers then calculated the "root mean square deviation" RMSD to quantify the degree of asymmetry between the two sides of each face.