Primary enamel cuticle

Primary Enamel Cuticle
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The primary enamel cuticle is a thin, organic film that covers the enamel of a tooth once it has erupted into the oral cavity. This cuticle is also known as the "Nasmyth's membrane" and is the final product of the ameloblasts, the cells responsible for the formation of enamel.

Structure

The primary enamel cuticle is composed of a thin layer of proteins and glycoproteins. It is the last secretion of the ameloblasts before they become part of the reduced enamel epithelium. This cuticle is eventually worn away by mastication and tooth brushing.

Function

The primary enamel cuticle serves as a protective layer for the newly erupted tooth. It helps to protect the enamel from bacterial attack and acid erosion until the tooth is fully integrated into the oral environment.

Clinical Significance

In some cases, remnants of the primary enamel cuticle can be observed on the surface of newly erupted teeth. These remnants can sometimes be mistaken for plaque or calculus, but they are a normal part of tooth development.

See also

• Enamel (tooth)
• Ameloblast
• Tooth eruption
• Oral cavity

External links

• Primary Enamel Cuticle on WikiMD