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dental ledge. 1. a band of ectodermal cells growing from the epithelium of the embryonic jaws into the underlying mesenchyme; local buds from the ledge give rise to the primordia of the enamel organs of the teeth.
A dental bridge consists of two components 1  : Anchor crowns The anchor crowns (also known as retainer crowns) are two (or more) dental crowns that are cemented on the teeth adjacent to the toothless gap to support the bridgework restoration. The two anchoring teeth are called abutment teeth.