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Human Tooth Research Paper

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A human tooth is made of 4 main components Enamel, Dentin, Cementum, and Pulp, along with other components being the Nerves and Blood Vessels, Root, and Gums. The Enamel is the outermost layer of the tooth, and also the hardest substance. The average color of the enamel ranges from a light yellow to a grayish white. Over time the natural shade of the enamel is discolored due to exposure to substances such as coffee, wine, and tobacco, which stain the layer. Dentin, on the other hand, is the substance found in between the enamel and pulp. Dentin also protects the pulp. It is naturally yellow in color, which explains why the tooth appears to have a yellow shade; because of the translucency of the enamel. Also, when exposed to different temperatures, the sensitivity of tooth may cause pain to indicate that the protection of the pulp is being breached. In addition, the pulp of the tooth is a sensitive tissue where nerves and blood vessels pass through. The pulp also supplies nutrients and moisture to its surrounding areas. Lastly, the cementum in the tooth helps hold the tooth in place in the jaw.
The enamel is semi-translucent indicating that the dentin underneath affects the color and shade of the tooth. Dentin is naturally yellow in color, which explains why the tooth appears to have a yellow shade, the translucency of the enamel reflects the yellow hue …show more content…
Extrinsic means that the tooth is discolorized on the surface from substances whose pigments are able to stain the enamel. In addition, poor dental hygiene allowing enamel easier to stain but harder to remove. The other common way the teeth get discolored is when they discolored in an Intrinsic way, this means that the dentin in the tooth is getting darker/ more yellow. Intrinsic stains are commonly caused by childhood exposure to fluoride, a dead tooth, etc. Unlike Extrinsic stains, Intrinsic stains are more difficult to remove in a natural

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