By Eve Cameron

Teeth

The different kinds of teethPeople have lots of different teeth. When you have all of your adult teeth you have 32 in total and they are different shapes and sizes. There are four different kinds of teeth, incisors, canine, premolars and molars.

Incisor - incisors are your front teeth and are also quite sharp. There main job is to cut food your food as you bite and eat it.

Canine - canines are at the corners of your mouth and these teeth are slightly pointed. The main job of these teeth is grasping and tearing food. These teeth have really have long roots.

Premolar - premolars are the teeth behind the canine and these teeth are a different shape and have quite a flat surface. These teeth are used for chewing and crushing food with there flat surface.

Molar – molars are next to your premolars and these also have quite a flat surface, they are also bigger than your premolars. These teeth are also used for chewing and crushing food into smaller pieces.

Wisdom - wisdom teeth are your last teeth. Some people don’t have wisdom teeth are they are your hardest teeth to grow through your gums.

Parts of a tooth

Teeth have 2 parts the crown and the root.

Crown – The crown of your tooth is what you see when you smile or open your mouth. It is the part that sits above your gum line.

Root – The root is the part of your tooth that is below your gum line. This makes up about 2/3 of a tooth's total strength.

Each tooth is made up of 3 layers, enamel, dentine and pulp.

Enamel – the hard protective surface that covers the crown bit of the tooth.

Dentine – is the second outer layer under the enamel of your tooth that covers the nerve.

Pulp – is the centre of your tooth. it is soft and has a blood supply and nerve.

What causes plaque from sugar ?

Sugar plays a very harmful role in tooth decay, because the bacteria gets energy from the sugar and makes plaque. Plaque multiplies faster and becomes thicker and wider. Not all of the bacteria turns the sugar into a type of glue.

The surface of the enamel on the tooth becomes porous and makes tiny holes in your teeth, after a while the holes become bigger from the acid.

How do braces work?Teeth that are crooked and in other words not in the right place this leads to not quite good problems like not being able to talk properly, eating their food and the way there smile looks like.

One method to correct crooked teeth is to get Orthodontic treatment which is very special.

Braces have three basic steps – they are 1.) The Brackets – These are attached to each tooth.

2.) The Bonding or Band - This is a material that attaches to the bracket of the tooth.

3.) The Arch Wire – This is a thin peace of metal that runs from bracket to bracket.

How much sugar in foods?Marshmallows - 100g – 14.5 teaspoons of sugarBoiled sweet bag – 100g – 11.5 teaspoons of sugarSnickers bar – 57g – 7 teaspoons of sugarRed Bull – ( one can) – 7.5 teaspoons of sugarCoca Cola – ( One Can) – 7 teaspoons of sugarFruit Smoothie - ( one glass ) – 3.5 teaspoons of sugarHoney Smacks – 14 teaspoons of sugar Special K - 3 teaspoons of sugar Alpen – 5 teaspoons of sugar Grapes – 4 teaspoons of sugarBanana - 3 teaspoons of sugarApricots - 2.3 teaspoons of sugarFruit Cake – 5 teaspoons of sugarMuffin ( chocolate chip) – 4.75 teaspoons of sugarSponge cake - 5.5 teaspoons of sugar All of this sugar can change your teeth to -

BibliographyWebsites:-

healthyteeth.org

cyh.com

Kidshealth.org

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