Enamel is the hardest and outer most layer of the tooth. The enamel protects your tooth from wearing down while chewing. Enamel is the thickest part of the tooth, so it provides some protection. The enamel is the hardest tissue in the body, but it is easily damaged. The primary issue with enamel is that it cannot mend itself.
The cementum is the outermost layer of the tooth and starts at the gum line. Cementum is yellow. The cementum protects the …show more content…
It is a hard, bone-like material that takes up most of the tooth and contains nerves that send a message to the brain when something is wrong with the tooth. Dentin is also a yellow color and gives the tooth a yellowish appearance. Dentin is softer than the enamel but harder than bone. The dentin is a living tissue so it can have some growth and repair. Many things can hurt teeth. Hard candies which can chip teeth and cause a reaction between the tooth and the sugars in the candy. Another thing that can hurt the tooth is ice, it may be fun to chew, but the hard substance of it can damage the enamel and leave the tooth very weak. Watch out for citric acid! This can erode enamel and make the tooth decay. Sticky foods stay on the tooth which causes severe damage. Although sports drinks fill people with energy, the sugar reacts badly with the tooth. Over-brushing can hurt your teeth as well. Over-brushing can cause sensitive teeth and receding