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The Enamel Niche

This diagram shows the enamel niche and its formation in a 3 dimensional format. For a relatively short period during odontogenesis a lamina develops and projects at right angles to the dental lamina with which it is continuous. It extends in a buccal direction and is referred to as the buccal lamina. This lamina is thickened along its free border where it fuses with the dental organ. The tissue between the thickened portion of the buccal lamina and the dental lamina is thin. One recess forms facing mesially and another faces distally (toward the midline of the arch anteriorly and toward the posterior end of the arch respectively). These recesses are filled with connective tissue and are called enamel niches. The enamel niche is a transitory structure with no known significance.


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