Dentin is the ivory-colored mineralized substance that makes up the bulk of the teeth. Dentin is made up of minerals such as calcium, as well as mineral rich fluids and is intended to protect the pulp of the tooth, which would otherwise be very sensitive. Dentin also creates a base underneath the enamel so that we have more than just enamel covering the tooth. It’s essential that dentin is taken care of properly, and by regular flossing and brushing, you can do so rather easily. It’s important to note that because dentin is dense, it is vulnerable to rotting and infection. If it gets to this point, you could be in store for expensive and painful dental work.

Although many people aren’t familiar with dentin, it’s one of the four major components of teeth. There are different types of dentin as well: Primary, secondary and tertiary. Primary dentin is what forms most of the tooth, while secondary dentin develops after the root formation has completed. It is much slower than primary dentin, but the third slowest is tertiary. Tertiary dentin only forms as a response to certain stimuli such as tooth decay.

Dentin, unlike enamel, continues to form throughout life, so you don’t really lose it. It can also grow in response to tooth decay or attrition; the body’s way of saying that the tooth needs to be stronger. Even though it does regenerate, doesn’t mean dentin doesn’t need to be cared for. It does wear away quickly, especially because it’s softer than enamel. Exposed dentin is what causes sensitivity in humans, and we all know how difficult that can be to live with, especially when eating hot and cold foods.

Interestingly, dentin is harder than bone, which has made it popular in less conventional ways such as for carving and other crafts. In fact, elephants, walruses and hippos have been hunted for their dentin. For example, elephants’ tusks are made of dentin and enamel, and once the enamel wears away, only the dentin is exposed. The structure of dentinal tubules is used for such items as billiard balls and piano keys as well, as it has the sturdy, elastic properties that are required.

If you have been experiencing symptoms of sensitivity, you may have exposed dentin. 1-800 Dentist recommends seeing a dentist as soon as possible, as cavities form in the dentin. You should see your dentist twice a year and brush and floss regularly to protect the dentin. Once the enamel wears down, you don’t get new enamel, so this can cause further irritation. Make an appointment to see your dentist today. It’s a new year – so you might as well start fresh!

Image c/o: webmd.com

Blog sponsored by: Englewood Dental

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