Topic Outline.docx - Kharen Jean N Padinit Grade XI u2013...

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Kharen Jean N. Padinit Grade XI – Mt. Kitanglad The 4 Types of Teeth and How They Function I. Incisors A. There are four incisors on the top and four on the bottom. 1. Incisors are shaped like tiny chisels with flat ends that are sharp. 2. These teeth are used for cutting and chopping food. 3. They are the first teeth to chew most food we eat. B. Incisors are usually the first tip to erupt. 1. Around 6 months of your baby teeth. 2. Between ages 6 and 8 for your adult set. II. Canine teeth A. People have a total of four canine teeth, two on top and two on the bottom. 1. They are pointed and sharp. 2. They are used to tear food. B. Primary canines generally appear between 16 and 20 months, with the upper canines coming in just ahead of the lower canines. III. Premolars A. You have eight premolars in all, four on top and four on the bottom. 1. The first premolars appear around age 10. 2. The second premolars arriving about a year later.

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