Journal Article

The influence of mandibular prominence on facial attractiveness

Chris Johnston, Orlagh Hunt, Donald Burden, Mike Stevenson and Peter Hepper

in The European Journal of Orthodontics

Published on behalf of European Orthodontics Society

Volume 27, issue 2, pages 129-133
Published in print April 2005 | ISSN: 0141-5387
Published online April 2005 | e-ISSN: 1460-2210 | DOI:
The influence of mandibular prominence on facial attractiveness

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This study examined the attractiveness of facial profiles. One hundred and two social science students (28 males and 74 females) rated the attractiveness of a series of silhouettes with normal, Class II or Class III profiles. A random sequence of 10 images included an image with the Eastman normal SNB value of 78 degrees, and images with SNB values of 2.5, 5, 7.5 and 10 degrees above and below normal. A duplicate image in each sequence was used to assess reproducibility. The participants scored the attractiveness of each image and also indicated whether they would seek treatment if each image was their own profile.

The profile with the normal SNB angle of 78 degrees was rated as the most attractive. Attractiveness scores reduced as the mandibular profile diverged from the normal SNB value. The +5 degree profile (SNB = 83 degrees) was rated as significantly more attractive than the −5 degree profile (SNB = 73 degrees; P = 0.004). No other significant differences between the scores for Class II and Class III profile pairs of equal severity were found. At 10 degrees below the normal SNB (Class II), 74 per cent of the sample would elect to have treatment, while 78 per cent would elect to have treatment at 10 degrees above the normal SNB (Class III).

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Subjects: Restorative Dentistry and Orthodontics

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