Pattern of facial beauty: previously undefined proportions

Abstract

Aim: to develop an universal cephalometric analysis of a beautiful female face and a simple method of the planning of orthognathic surgery for correcting malocclusions, improving airway permeability, and achieving a good stable esthetic outcome. Patients and Methods: to determine facial proportions, a term “rondist” (Ro) was introduced defined as a horizontal plane that corresponds with the natural line dividing a head into the upper and lower portions. Three planes being perpendicular to the rondist go through the subnasal point (Sn), glabella (Gb), and tuber frontale (Tf). LF is the lower one-third of the face. A profile depth (PD) is the ratio of Sn-Gb distance to Gb-Tf distance while a lower facial inclination (LFI) is the angle between LF and Ro (LF/Ro). 122 most beautiful female photos from various rankings were analyzed. All faces were allocated to either group 1 (modern Caucasian women, n=52), 2 (20th century Caucasian women, n=33), 3 (Mongoloid women, n=19), or 4 (Negroid women, n=18). Results: side portrait image was found for each face. PD and LFI were determined. PD and LFI were 0.97±0.016 93.3°±0.6° in group 1 (Gaussian distribution), 0.97±0.02 and 93.0°±0.8° in group 2, 0.96±0.02 and 93.6°±1.1° in group 3, and 0.97±0.03 and 92.6°±1.1° in group 4, respectively. Statistical analysis has demonstrated that all distributions belong to the same general population. Conclusion: the characterization of a novel facial plane (Ro) and cephalometric analysis revealed the race- and history-independent criteria of a beautiful face that are intuitively defined by most people. Beautiful faces follow the same template with PD equal to 1.0 and LFI closer to 90°. KEYWORDS: facial proportions, attractiveness, dental anomalies, sleep apnea. FOR CITATION: Solov’ev M.M., Katinas E.B., An I.A. Pattern of facial beauty: previously undefined proportions. Russian Medical Inquiry. 2020;4(4):226–232. DOI: 10.32364/2587-6821-2020-4-4-226-232.