Articles on Teeth

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The edges of your lost tooth are sharp because when the root of the baby tooth is being eaten away, it tends to start from the middle of the root. That leaves a sharp edge behind when the tooth breaks off. Flickr/Stephanie Young

Curious Kids: My tooth fell out. Why is it so spiky on the bottom?

Nicholas, aged 6, was watching TV one day when his tooth fell out. He noticed that the bottom edge of the tooth was very spiky. Now he wants to know why.
Toothpaste helps remove plaque to prevent decay and gum disease. kikovic/Shutterstock

Health Check: how to choose toothpaste

Choosing a toothbrush is relatively simple. But how on earth do you decide between the 50-odd toothpastes on the supermarket shelves?
This skull belongs to the carnivorous gorgonopsian therapsid Smilesaurus ferox which lived 255 million years ago. Cradle of Humankind/Flickr/Wikimedia

You can thank our pre-mammalian ancestors for your sexy teeth

Modern sabre-tooth mammals have their canines constantly on display. This allows them to seduce mates. But was sexual selection also an important phenomenon among our pre-mammalian ancestors?
Good teeth often correlates with good health. But one in five over-65s have lost all their teeth. m01229/Flickr

How to fill the gaps in Australia’s dental health system

An Aussie smile is an instant indicator of socioeconomic status, employability and self-esteem. It’s also a predictor of physical health. So it’s shocking that Australians’ dental health has not improved…

Gum disease linked to chronic health problems

Researchers have found that treating gum disease (periodontal disease) may reduce heart disease, diabetes and other conditions…
Most gum disease is preventable through good dental hygiene. Inside and Out/Flickr

Health Check: why do my gums bleed and should I be worried?

Bleeding gums are very common but that doesn’t mean you should ignore them. They’re usually a sign of gum (periodontal) disease. If treated in its early stages, periodontal disease can be easily reversed…

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