The interdental gingiva assumes a nonvisible concave form between the facial and lingual gingival surfaces called the:

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Apical to the contact area,the interdental gingiva assumes a nonvisible concave shape between the facial and lingual gingival surfaces forming the gingival col.The gingival tissue between adjacent teeth adjoining the attached gingiva is the interdental gingiva,forming the individual extensions of the interdental papillae.At the most coronal part of the marginal gingiva is the free gingival crest.The cervical peak of the individual gingival contour is referred to as the gingival apex of the contour.

The Interdental Gingiva Assumes a Nonvisible Concave Form Between the Facial