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Amelogenesis
DefinitionDefinition of Amelogenesis Amelogenesis is the formation of enamel on teeth and occurs during the crown stage of tooth development after dentinogenesis, which is the formation of dentine. Although dentine must be present for enamel to be formed, it is also true that ameloblasts must be present in order for dentinogenesis to continue. A message is sent from the newly differentiated odontoblasts to the inner enamel epithelium (IEE), causing the epithelial cells to further differentiate into active secretory ameloblasts. Dentinogenesis is in turn dependent on signals from the differentiating IEE in order for the process to continue. This prerequisite is an example of the biological concept known as reciprocal induction, in this instance between mesenchymal and epithelial cells. Types: Amelogenesis has two stages. The first stage is called “secretory phase” wherein proteins and organic matrix form a partially mineralized enamel, while the second stages is known as the “maturation stage” wherein the enamel mineralization is completed. Find Diseases Alphabetically 
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