This layer is the hardest material in your body similar to bone. The reason it is so hard and dense is to protect the spongy dentine layer. Unlike bone though, it does not have cells not capable of repairing itself. However, we can strengthen it by a process of repair called remineralization which is possible but requires external help. It is one of the main reasons you brush your teeth with fluoride. This layer only covers the top section of the tooth. It is translucent and ranges in colors from yellow-white to gray white.
Dentin is a mineralized tissue layer that is hard but not as hard as enamel. But the main different that dentine is very porous, being made up of lots of microscopic canals. These canals allow direct communication to the jam/pulp layer. It can be one of the reasons why some people have sensitivity to cold or hot foods and drinks. This layer is capable of some repair.
The pulp is the jam layer made up of blood vessels and nerves. The nerves are the communication leads to the brain. Once bacteria has reached this layer it will send pain signals to the brain.
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This page provides general information about dental topics. It does not contain all the known facts of this subject and is not intended to replace personal advice from your dentist. If your not sure about anything on this site, contact us or speak to your local oral health practitioner. Make sure you give your local oral health practitioner your complete medical history and dental history.
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