The substance that covers the root of the tooth is called

dentin.
cementum.
periodontal ligament.
Sharpey's fibers.

cementum.

Rationale: cementum.

Health Professions

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Medigap policies are sold by

a. private insurance companies b. the government c. HMOs d. Medicare

Health Professions

Which of the diagnostic tests for pulmonary embolism is likely the safest and the most consist-ently accurate?

a. Impedance plethysmography b. MRI c. Pulmonary angiogram d. Helical CTA

Health Professions