Tooth enamel
(Redirected from Substantia adamantina)
Tooth enamel is the hard, outer surface layer of our teeth that serves to protect against tooth decay. In fact, tooth enamel is considered the hardest mineral substance in your body, even stronger than bone. Its primary purpose is to protect the softer, more vulnerable areas of the teeth from the effects of chewing, biting, crunching, and grinding. The enamel also insulates the teeth from potentially painful temperatures and chemicals.
Composition[edit | edit source]
Tooth enamel is composed of hydroxyapatite, carbonate hydroxyapatite, and fluorapatite, which are all forms of calcium phosphate. It also contains small amounts of organic material and water. The high mineral content gives enamel its strength and hardness, while the organic material and water contribute to its resilience.
Formation[edit | edit source]
Amelogenesis is the process by which tooth enamel forms. This process begins with the production of enamel matrix proteins by ameloblasts, which are then mineralized to form enamel. Once the enamel is fully formed, the ameloblasts are broken down, meaning that enamel cannot regenerate or repair itself if it is damaged.
Function[edit | edit source]
The primary function of tooth enamel is to protect the teeth from damage. It does this by providing a hard surface for chewing and biting, as well as insulating the sensitive inner layers of the tooth from extreme temperatures and harmful chemicals.
Diseases and disorders[edit | edit source]
There are several diseases and disorders that can affect tooth enamel, including dental caries, dental erosion, and amelogenesis imperfecta. Dental caries, or cavities, occur when bacteria in the mouth produce acids that erode the enamel. Dental erosion is the loss of enamel due to exposure to acid, while amelogenesis imperfecta is a genetic condition that affects the formation of enamel.
Prevention and treatment[edit | edit source]
Maintaining good oral hygiene is the best way to protect tooth enamel. This includes brushing with a fluoride toothpaste, flossing regularly, and visiting the dentist for regular check-ups. Treatments for enamel loss include fillings, crowns, and veneers.
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Contributors: Prab R. Tumpati, MD