The extension of the free gingiva that fills the interproximal embrasure between two adjacent teeth is called the ______ gingiva.

Question

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The interdental gingiva,or interdental papilla,is the extension of the free gingiva consisting of prominent horizontal collagen fibers that fills the interproximal embrasure between two adjacent teeth.
Marginal gingiva is unattached,or free,gingiva that surrounds the teeth.
Unattached gingiva is the border of the gingiva that surrounds the teeth in collar-like fashion.
The attached gingiva extends from the base of the sulcus that surrounds the tooth to the mucogingival junction.It is firmly bound down to the underlying periosteum,tooth,and bone.

The Extension of the Free Gingiva That Fills the Interproximal