Influence of chin height on perceived attractiveness in the orthognathic patient, layperson, and clinician

TY - JOUR

T1 - Influence of chin height on perceived attractiveness in the orthognathic patient, layperson, and clinician

AU - Naini, Farhad B.

AU - Donaldson, Ana Nora A.

AU - McDonald, Fraser

AU - Cobourne, Martyn T.

PY - 2012/1

Y1 - 2012/1

N2 - Objective: To determine an objective and quantitative evaluation of how severity of chin height variations influence perceived attractiveness. Materials and Methods: The chin height of an idealized male and female frontal facial image was altered in 2.5-mm increments from 12.5 to 22.5 mm (male images) and from 10 to 20 mm (female images). These images were rated on a seven-point Liken scale by a preselected group of pretreatment orthognathic patients, clinicians, and laypeople. Results: The classical lower facial proportional canon of upper lip height as one third (33.3%), lower lip height as one third (33.3%) and chin height as one third (33.3%) of lower anterior face height (LAFH) may be used as an "ideal" proportional ratio. However, chin height variations within a given proportional range are largely unnoticed, ie, from approximately 30% chin height in relation to LAFH (male and female) up to approximately 40% (males) and 50% (females) chin height in relation to LAFH. Additionally, surgery is only desired with greater variations in chin height: greater than 50% and less than 20%-23% of LAFH in males, and greater than 58% and less than 20% 22% of LAFH in females. Patients and clinicians are more critical than laypeople, but no significant differences were found between clinicians and patients. Conclusions: In relation to the classical canon, surgical correction of chin height deformities are desired with chin height greater than 50% and less than 20%-23% of LAFH in males, and greater than 58% and less than 20%-22% of LAFH in females. (Angle Orthod. 2012;82:88-95.)

AB - Objective: To determine an objective and quantitative evaluation of how severity of chin height variations influence perceived attractiveness. Materials and Methods: The chin height of an idealized male and female frontal facial image was altered in 2.5-mm increments from 12.5 to 22.5 mm (male images) and from 10 to 20 mm (female images). These images were rated on a seven-point Liken scale by a preselected group of pretreatment orthognathic patients, clinicians, and laypeople. Results: The classical lower facial proportional canon of upper lip height as one third (33.3%), lower lip height as one third (33.3%) and chin height as one third (33.3%) of lower anterior face height (LAFH) may be used as an "ideal" proportional ratio. However, chin height variations within a given proportional range are largely unnoticed, ie, from approximately 30% chin height in relation to LAFH (male and female) up to approximately 40% (males) and 50% (females) chin height in relation to LAFH. Additionally, surgery is only desired with greater variations in chin height: greater than 50% and less than 20%-23% of LAFH in males, and greater than 58% and less than 20% 22% of LAFH in females. Patients and clinicians are more critical than laypeople, but no significant differences were found between clinicians and patients. Conclusions: In relation to the classical canon, surgical correction of chin height deformities are desired with chin height greater than 50% and less than 20%-23% of LAFH in males, and greater than 58% and less than 20%-22% of LAFH in females. (Angle Orthod. 2012;82:88-95.)

U2 - 10.2319/050111-311.1

DO - 10.2319/050111-311.1

M3 - Article

SN - 1945-7103

VL - 82

SP - 88

EP - 95

JO - Angle Orthodontist

JF - Angle Orthodontist

IS - 1

ER -