Taking care of her pearly whites has paid off for Carrie Underwood, who was recently named Female Celebrity Smile of the Year by Dear Doctor magazine.

"Carrie has the freshness of youth, carried in her flawless complexion," writes Dr. David A. Garber, a periodontist and prosthodontist.

"There is midline symmetry to her smile, her nose and front teeth center on her face -- the lower lip line and tips of her front teeth parallel one another ... The smile line follows the shape of her lower lip, it has a natural convex shape going downwards and mirroring the line of her upper teeth," he writes.

Garber goes on to write: "Her four upper front teeth are beautifully symmetrical; with a radiating harmony and continuity of form as they extend out to the corners of her smile. The color of her teeth, one of the key assets, is bright, uniform and natural ...These characteristics are further enhanced by her skin and complexion; the way she wears her hair and her make-up that highlight and accentuate her already flawless features ... She has her own specific, individual and special set of characteristics that well, make her -- HER, and that is why she gets the award for Celebrity Smile of the Year!"

Dear Doctor will announce the Male Celebrity Smile honor later this year.

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