Tooth Enamel, Your Mouth’s Diamonds
The hardest substance in the body is tooth enamel. In fact, the only natural occurring substance harder than tooth enamel is diamond. Tooth enamel, your teeth’s natural defense system, is the hard white substance covering the crown of a tooth.
Unfortunately, tooth enamel can wear away over time.
Acids also temporarily soften your tooth every time you eat or drink, so it becomes vulnerable. Luckily, your saliva contains compounds that re-strengthen tooth enamel soon after this occurs. All components of the mouth work together, and therefore you need regular check-ups to make sure that everything is functioning properly.
Not only does tooth enamel protect your teeth, but it also controls how temperature is sensed in the intern
Neighbourly challenge: Who can solve the daily riddle?
I have a crown but am not a king.
I'm prickly on the outside but sweet within.
What am I?
Do you think you know the answer to our daily riddle? Don't spoil it for your neighbours! Simply 'Like' this post and we'll post the answer in the comments below at 2pm.
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Head here and hover on the Following button on the top right of the page (and it will show Unfollow) and then click it. If it is giving you the option to Follow, then you've successfully unfollowed the Riddles page.
Poll: What special qualities should a 5-star New Zealand airport hotel at our largest international airport have?
Te Arikinui Pullman Auckland Airport is New Zealand’s only 5-star airport hotel, given its incredibly close proximity to the airport, the convenience of walking to the airport is a major highlight but there are plenty of other features that make it special.
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5.5% Unmatched runway views with a private lounge
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46% Exceptional service from arrival to departure
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4.8% Gourmet dining featuring New Zealand's finest, celebrating Te Ao Māori kai
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36.3% A soundproof oasis with all desired amenities
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7.4% Māori culture reflected throughout, creating an architectural marvel
Poll: Is dumping an issue in your neighbourhood?
There's nothing worse than strolling around the streets in your neighbourhood and seeing dumped rubbish.
Have you noticed this in your area? What could we do to combat this around the country?
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43% Yes, I've seen some illegal dumping
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56.3% No, our neighbourhood is pretty good
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0.7% Other - I'll share below