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Terms and definitions used in our Dental Anatomy quiz.

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Terms: Dental anatomy landmarks.

Tooth Root :: that portion of a tooth that is embedded in the jawbone. (A)
Tooth Crown :: that portion of a tooth that lies above the gum line. It is also that portion of a tooth that is covered with dental enamel. (B)
Tooth Neck :: that point where a tooth's root and crown meet. (C)
Enamel :: a calcified tissue that covers the crown portion of a tooth. It is the hardest (most mineralized) tissue found in the human body. (D)
Dentin :: a calcified tissue that is harder than bone but less mineralized than tooth enamel. Most a tooth's structure is composed of dentin. (E)
Cementum :: a layer of calcified tissue that covers the surface of a tooth's root. The periodontal ligament attaches to this layer. (F)
Dental Pulp :: the soft tissue that lies inside a tooth. It contains the tooth's blood vessels and nerve fibers. (G)
Alveolar Bone :: that portion of the jawbone that encases the roots of the teeth. (H)
Gingiva :: the soft tissue that surrounds the teeth and covers over the jawbones. It is also referred to as gum tissue. (I)
Periodontal Ligament :: the tissue that lies between a tooth's root and the bone encasing it. It binds the tooth in place in its socket. (J)
Pulp Chamber :: the hollow space that lies within the center of a tooth's crown. It is filled with pulp tissue. (K)

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