Despite her troubles, Cheryl Cole's smile has been voted as the one that women want.

Her jolly pout is a good example of the perfect congruent smile that ticks every box in terms of smile psychology.

It's evenly shaped and spread, making it appear genuine. Her wide top and bottom lips aren't compromised by over-stretching either; they retain their softened shape, suggesting warmth and sexuality.

Her teeth are perfect, signifying good health, and her dimples add the irresistible factor. Dimples tend to have a child like appeal but also imply a person is a frequent smiler, suggesting a happy, calm and caring personality.