Grade 2 Prepared by: Teacher Vanessa Chapter 2 Our Teeth When you are 6 or 7 years old, your milk teeth will begin to fall. You will gradually have a full set of 32 permanent teeth. This set of teeth will last you a long time. You must take good care of your teeth. We should brush them regularly to keep them clean and avoid tooth decay. Permanent Teeth Milk Teeth (Adult) (toddler) 32 teeth 20 teeth Types of teeth • The front teeth are called incisors. • They are used for snipping food. Types of teeth • The pointed teeth next to the incisors are canines. • They are used for tearing food. Types of teeth • The premolars are behind the canines. • They flatter surfaces for chewing food. Types of teeth • The biggest teeth are at the back of our mouth are the molars. • The molars allow us to chew and grind food into smaller pieces so that we can swallow our food easily. 1. Label the types of teeth correctly. page 18 2. Fill in the blanks with the correct words from the boxes. The incisors in front of the mouth are good at food. snipping The pointed canines are good for tearing food. page 18 2. Fill in the blanks with the correct words from the boxes. The premolars have flatter surfaces for chewing food. The biggest teeth are the molars at the back of the mouth. page 18 2. Fill in the blanks with the correct words from the boxes. A toddler has An adult has milk20 teeth 30permanent teeth. page 18 Tiny organism called germs cause tooth decay. This hole or cavity in the tooth should be filled by a dentist. Otherwise, it will get bigger and bigger. Eventually you will end up with a very bad toothache and the affected tooth may even have to be removed. Germs grow and multiply on and between the teeth. They form a white material called plague on our teeth. Germs grow and multiply on and between the teeth. They form a white material called plague on our teeth. If the plague is not removed, it becomes a hard material called tartar. Tartar can spread to other teeth and make the gums red and sore. The gums may even bleed. The gums surrounding the teeth may become weak. Hence, the teeth become loose. Gum diseases can cause bad breath. Ways to care for our teeth Ways to care for our teeth Brush your teeth at least twice a day with fluoride toothpaste. This gives extra protection against tooth decay. Ways to care for our teeth Rinse your mouth in the morning and night with mouthwash. A mouthwash kills the germs that cause plague and tartar. It can also strengthen the gums and prevent bad breath. Ways to care for our teeth A dental floss is a thread made of fiber Dental floss helps to clean the parts of the teeth that the toothbrush cannot reach. How to use dental floss? You can slide it between your teeth to help remove any tiny traces of food that are stuck between the teeth. Ways to care for our teeth Use a soft-bristled toothbrush. Keep your toothbrush clean and change it every six months. Taking calcium-rich food will strengthen our teeth. Germs act on sugar to produce acid which causes the teeth to decay. We should eat less sugary food to prevent tooth decay. Any plague or tartar on the teeth can be removed by the dentist. Cavities in the teeth should be filled to stop serious tooth decay. The dentist can also clean and whiten your teeth. You should visit the dentist every six months. Take care of your teeth!