Hay all! It’s your boy Streptococcus mutans. For those who don’t know, I am a bacterium. Me and my friends live in your teeth. Unlike you, I always work from home. I may be a tenant but my landlord always pays the rent (price). And this is my life story. Let’s get to my humble abode… My place (i.e. tooth) has two parts- crown (the visible portion) and the root (which provides support and stability). It has three layers- Enamel (outermost), dentin and pulp. My dream is to get to bone for which I have to unlock three stages. Unlocking first level (enamel) My landlord often forgets to brush twice and never flosses. So I get more food to feed on (Yay!) and I produce acid which gives me pass to explore into the tooth. When I am here he won’t feel a thing. He may notice some color change which he neglects. Unlocking second level (dentin) ...