Smiley Sienna Miller has topped a Listerine poll of the the best celeb smiles.
But who else has great gnasher-flashing techniques?
We've found 'em and rated 'em just for you.
The leading lady of them all is Sienna. Beautiful. We feel emotional just looking at her smile. Smile Dial Score: 8/10.<\/p>","url":"2008/5/2/Sienna-Miller-0905-7.jpg","width":385,"height":540,"alt":"Sienna Miller 09.05"},{"captionHeading":"Best Celeb Smiles","caption":"
Julia Roberts' smile, however, is a classic.
Smile Dial Score: 9/10.<\/p>","url":"2008/5/2/Julia-Roberts-1203.jpg","width":385,"height":540,"alt":"Julia Roberts 12.03"},{"captionHeading":"Best Celeb Smiles","caption":"
Perfect hair, perfect white teeth, glossed lips, great figure... we hope Jennifer Aniston has bad morning breath, or something not perfect about her.
Smile Dial Score: 7/10.<\/p>","url":"2008/5/2/Jennifer-Aniston-0305.jpg","width":385,"height":540,"alt":"Jennifer Aniston 03.05"},{"captionHeading":"Best Celeb Smiles","caption":"
For Brittany Murphy it's all about flexing her cheek muscles to the max.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Brittany-Murph-0406.jpg","width":385,"height":540,"alt":"Brittany Murph 04.06"},{"captionHeading":"Best Celeb Smiles","caption":"
This smile of Kate Hudson's has a wave effect - heck, we want to grin along. Join us on the count of three, two, one... grin.
Smile Dial Score: 7/10.<\/p>","url":"2008/5/2/Kate-Hudson-1007.jpg","width":385,"height":540,"alt":"Kate Hudson 10.07"},{"captionHeading":"Best Celeb Smiles","caption":"
Smiling for a while is Isla Fisher.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Isla-Fisher-0606.jpg","width":385,"height":540,"alt":"Isla Fisher 06.06"},{"captionHeading":"Best Celeb Smiles","caption":"
Look at the pearlies on Martine McCutcheon.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Martine-McCutcheon-0406.jpg","width":385,"height":540,"alt":"Martine McCutcheon 04.06"},{"captionHeading":"Best Celeb Smiles","caption":"
P isn't only for Penelope Cruz, it's for practically perfect, which is what her smile is.
Smile Dial Score: 7/10.<\/p>","url":"2008/5/2/Penelope-Cruz-0408.jpg","width":385,"height":540,"alt":"Penelope Cruz 04.08"},{"captionHeading":"Best Celeb Smiles","caption":"
When Sandra Bullock smiles her eyes smile too. Fabulous.
Smile Dial Score: 8/10.<\/p>","url":"2008/5/2/Sandra-Bullock-1006.jpg","width":385,"height":540,"alt":"Sandra Bullock 10.06"},{"captionHeading":"Best Celeb Smiles","caption":"
How wide is Teri Hatcher's grin?
Smile Dial Score: 6.5/10.<\/p>","url":"2008/5/2/Teri-Hatcher-0907.jpg","width":385,"height":540,"alt":"Teri Hatcher 09.07"},{"captionHeading":"Best Celeb Smiles","caption":"
Put a toothbrush in her hand and Kelly Brook could well be the girl an any toothpaste ad.
Smile Dial Score: 9/10.<\/p>","url":"2008/5/2/Kelly-Brook-0208.jpg","width":385,"height":540,"alt":"Kelly Brook 02.08"},{"captionHeading":"Best Celeb Smiles","caption":"
A radiant Halle Berry doesn't have to go the full smile hog and flash all her teeth to show that she's got some great wattage going on.
Smile Dial Score: 7/10.<\/p>","url":"2008/5/2/Halle-Berry-0407.jpg","width":385,"height":540,"alt":"Halle Berry 04.07"},{"captionHeading":"Best Celeb Smiles","caption":"
That's a great top rack - of teeth, of course, Billie.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Billie-Piper-0606.jpg","width":385,"height":540,"alt":"Billie Piper 06.06"},{"captionHeading":"Best Celeb Smiles","caption":"
Straight and sparkly best describes Anne Hathaway's smile.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Anne-Hathaway-0208.jpg","width":385,"height":540,"alt":"Anne Hathaway 02.08"},{"captionHeading":"Best Celeb Smiles","caption":"
Beyonce's got such a glow about her when she smiles, we think we may need sunnies, but we're not sure she's putting enough into it with the eyes.
Smile Dial Score: 5/10.<\/p>","url":"2008/5/2/Beyonce-Knowles-0907.jpg","width":385,"height":540,"alt":"Beyonce Knowles 09.07"},{"captionHeading":"Best Celeb Smiles","caption":"
It's not a very extravagant smile, but we can see Drew Barrymore means it.
Smile Dial Score: 6.5/10.<\/p>","url":"2008/5/2/Drew-Barrymore-0507.jpg","width":385,"height":540,"alt":"Drew Barrymore 05.07"},{"captionHeading":"Best Celeb Smiles","caption":"
Wow, Fearne Cotton may not have a perfect smile, but she scores points for enthusiasm and willingness to show it off.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Fearne-Cotton-1004.jpg","width":385,"height":540,"alt":"Fearne Cotton 10.04"},{"captionHeading":"Best Celeb Smiles","caption":"
A smile that says a million words is this one belonging to Liv Tyler.
Smile Dial Score: 7/10.<\/p>","url":"2008/5/2/Liv-Tyler-0304.jpg","width":385,"height":540,"alt":"Liv Tyler 03.04"},{"captionHeading":"Best Celeb Smiles","caption":"
Grinning like a Chesire cat, Nadine Coyle shows off her toothy offerings.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Nadine-Coyle-1006.jpg","width":385,"height":540,"alt":"Nadine Coyle 10.06"},{"captionHeading":"Best Celeb Smiles","caption":"
Brighter than bright, whiter than white... it's Kara Tointon in full smile mode and an accidental wink to boot.
Smile Dial Score: 7.5/10.<\/p>","url":"2008/5/2/Kara-Tointon-0707.jpg","width":385,"height":540,"alt":"Kara Tointon 07.07"},{"captionHeading":"Best Celeb Smiles","caption":"
We've always thought of Kylie Minogue as smiley Kylie, because her smile voltage is always on high.
Smile Dial Score: 8/10.<\/p>","url":"2008/5/2/Kylie-Minogue-0208.jpg","width":385,"height":540,"alt":"Kylie Minogue 02.08"},{"captionHeading":"Best Celeb Smiles","caption":"
The glint from Reese Witherspoon's smile doesn't quite knock you out, but it's still far from being a bad set of pearly whites.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Reese-Witherspoon-0208.jpg","width":385,"height":540,"alt":"Reese Witherspoon 02.08"},{"captionHeading":"Best Celeb Smiles","caption":"
A small but sweet smile is Davina McCall's happy weapon.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Davina-McCall-0304.jpg","width":385,"height":540,"alt":"Davina McCall 03.04"},{"captionHeading":"Best Celeb Smiles","caption":"
This is a near-perfect exhibition of gnashers that belongs to Katherine Heigl and that lippy is really showing off their winning white hue too.
Smile Dial Score: 9/10.<\/p>","url":"2008/5/2/Katherine-Heigl-0208.jpg","width":385,"height":540,"alt":"Katherine Heigl 02.08"},{"captionHeading":"Best Celeb Smiles","caption":"
Only showing off half of her white gum diamonds is Sarah Jessica Parker.
Smile Dial Score: 6/10.<\/p>","url":"2008/5/2/Sarah-Jessica-Parker-0308.jpg","width":385,"height":540,"alt":"Sarah Jessica Parker 03.08"},{"captionHeading":"Best Celeb Smiles","caption":"
Don't let America Ferrera's Ugly Betty braces on screen fool you - her smile is insured for $10m (£5m). And you thought \"a million-dollar smile\" was just a saying, eh?
Smile Dial Score: 7/10.<\/p>","url":"2008/5/2/America-Ferrera-1007.jpg","width":385,"height":540,"alt":"America Ferrera 10.07"},{"captionHeading":"Best Celeb Smiles","caption":"
As sweet as Jessica Simpson's smile is, it's not really going to set any skies alight, is it?
Smile Dial Score: 5/10.<\/p>","url":"2008/5/2/Jessica-Simpson-0806.jpg","width":385,"height":540,"alt":"Jessica Simpson 08.06"},{"captionHeading":"Best Celeb Smiles","caption":"
Goodness gracious, great gnashers of fire, Jessica Alba has a positively explosive smile.
Smile Dial Score: 8/10.<\/p>","url":"2008/5/2/Jessica-Alba-0907.jpg","width":385,"height":540,"alt":"Jessica Alba 09.07"},{"captionHeading":"Best Celeb Smiles","caption":"
We're sure the tooth fairy is proud of Cat Deeley.
Smile Dial Score: 7.5/10.<\/p>","url":"2008/5/2/Cat-Deeley-0706.jpg","width":385,"height":540,"alt":"Cat Deeley 07.06"}];