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ADA NBDHE Dental Hygienist

Category - Scientific Basis for Dental Hygiene Practice

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What is present in only 50 percent of the gingival surfaces?

Gingival groove
Interdental gingiva
Papillae
Marginal gingiva

Explanation

Answer: A - The gingival groove is present in only 50 percent of the gingival surfaces. When present, it is located 1 to 1.5 mm apical to the gingival margin at the base of the gingival sulcus.

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