Effects of facial forms and midline deviations and rolls on female facial beauty according to laypeople, orthodontists, and prosthodontists or restorative dentists.

Thresholds of tolerance: The referees rated the midline 1 mm off to the right as the most appealing one; the zone of acceptability also comprised the ‘on’ midline, the midline off to the left for 1 mm (Bonferroni, level of significance = 0.008, both P values = 1.0, Table 9 ) as well as 2 mm deviation to the right, which was only marginally significant ( P = 0.030, Table 9 ).

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