TY - JOUR
T1 - Aesthetic impact of the upper component of the nasolabial angle
T2 - A quantitative investigation
AU - Naini, Farhad B.
AU - Cobourne, Martyn T.
AU - McDonald, Fraser
AU - Wertheim, David
PY - 2015/7/1
Y1 - 2015/7/1
N2 - Objective: A quantitative evaluation of the influence of the upper component of the nasolabial angle (NLA-UC) on perceived attractiveness and threshold values of desire for rhinoplasty. Materials and methods: The NLA-UC of an idealized silhouette male Caucasian profile image was altered incrementally between -24° and 45°. The images were rated on a Likert scale by pre-treatment orthognathic patients (n= 75), laypeople (n= 75) and clinicians (n= 35). Results: The results of the present investigation demonstrate that a NLA-UC of between 12° and 24° is ideal, with a range of 8-30° deemed acceptable. Angles above or below this range, up to -4° and 36°, are perceived as slightly unattractive, and anything outside the range of -4° to 36° is deemed very unattractive.In terms of threshold values of desire for surgery, for patients it was 33° and above and -8° and below, and for both clinicians and laypeople it was 36° and above and -8° and below.Patients appear to be more critical than laypeople and clinician groups. This stresses the importance of using patients as observers, as well as laypeople and clinicians, in facial attractiveness research. Conclusions: From the results of this study, it is recommended that in rhinoplasty planning, the range of normal variability of the NLA-UC, in terms of observer acceptance, be taken into account as well as the threshold values of the desire for surgery.
AB - Objective: A quantitative evaluation of the influence of the upper component of the nasolabial angle (NLA-UC) on perceived attractiveness and threshold values of desire for rhinoplasty. Materials and methods: The NLA-UC of an idealized silhouette male Caucasian profile image was altered incrementally between -24° and 45°. The images were rated on a Likert scale by pre-treatment orthognathic patients (n= 75), laypeople (n= 75) and clinicians (n= 35). Results: The results of the present investigation demonstrate that a NLA-UC of between 12° and 24° is ideal, with a range of 8-30° deemed acceptable. Angles above or below this range, up to -4° and 36°, are perceived as slightly unattractive, and anything outside the range of -4° to 36° is deemed very unattractive.In terms of threshold values of desire for surgery, for patients it was 33° and above and -8° and below, and for both clinicians and laypeople it was 36° and above and -8° and below.Patients appear to be more critical than laypeople and clinician groups. This stresses the importance of using patients as observers, as well as laypeople and clinicians, in facial attractiveness research. Conclusions: From the results of this study, it is recommended that in rhinoplasty planning, the range of normal variability of the NLA-UC, in terms of observer acceptance, be taken into account as well as the threshold values of the desire for surgery.
KW - Attractiveness perception
KW - Desire for surgery
KW - Nasolabial angle
KW - Rhinoplasty
UR - http://www.scopus.com/inward/record.url?scp=84933670692&partnerID=8YFLogxK
U2 - 10.1016/j.ajoms.2014.05.004
DO - 10.1016/j.ajoms.2014.05.004
M3 - Article
AN - SCOPUS:84933670692
SN - 2212-5558
VL - 27
SP - 470
EP - 476
JO - Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology
JF - Journal of Oral and Maxillofacial Surgery, Medicine, and Pathology
IS - 4
ER -