Take this free tooth anatomy quiz to test your knowledge on the sections and major tissues of the teeth. When you study anatomy (or dentistry), you’ll want to familiarize yourself with the basic structure of a tooth. The tooth can be divided into three main sections, which consist of four major tissues.
Tooth Anatomy Quiz
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Tooth Anatomy Quiz: Sections and Tissues of the Tooth
1. Which part of the tooth is covered in enamel and visible in the mouth (oral cavity)?
The answer is b, crown. The crown’s surface is covered in protective enamel, and it is the part of the teeth that we can see in the mouth.
2. Teeth are considered bones.
The answer is b, false. Although teeth and bones have some similarities, there are also important differences. Therefore, anatomists do not classify teeth as bones.
3. Which tissue covers the tooth’s root?
The answer is c, cementum. Cementum is a hard tissue that covers and protects the root of the tooth.
4. Dentin is the hardest substance in the human body.
The answer is b, false. Enamel is the hardest substance in the human body, and it makes up the outer layer of the tooth’s crown.
5. The part of the tooth where the enamel meets the cementum is called what?
a. Cementoenamel junction (CEJ)
b. Cervical line
c. The tooth’s neck
d. All of the above
The answer is d, all of the above. The portion of the tooth where the enamel meets the cementum is called the neck, cervical line, or cementoenamel junction (CEJ).
6. Which statement about dentin is false?
a. Dentin accounts for very little of the tooth’s mass
b. Dentin is deep to the enamel or cementum layer
c. Dentin is harder than cementum
d. Dentin is softer than enamel
The false statement was a. Dentin actually makes up most of the tooth’s mass, so that was the false statement. Dentin is deep to the enamel and cementum layer, and it is harder than cementum but softer than enamel.
7. Which cells form and maintain dentin?
The answer is b, odontoblasts form and maintain the dentin tissue.
8. Which tissue anchors the cementum of the teeth to the alveolar bone in the jaws?
c. Periodontal ligament
d. Nuchal ligament
The answer is c, the periodontal ligament attaches to the cementum of the tooth’s root and anchors it to the alveolar bone of the jaw.
9. Which section of the tooth is found below the cementoenamel junction and often hidden below the gums?
c. Dentinoenamel junction (DEJ)
The answer is d, root. The root is found between the tooth’s apex and the tooth’s neck, which is also called the cementoenamel junction (CEJ).
10. What is the narrow part of the pulp cavity called, which runs along the tooth’s root(s)?
a. Pulp chamber
b. Root canal
c. Apical foramen
d. Dentinal tubule
The answer is b, root canal. This is the narrow part of the pulp cavity that runs along the span of the root.
11. What is the name of the tiny hole at the apex of the tooth, which allows for the passage of vessels and nerves?
a. Apical foramen
b. Dentinal tubule
c. Enamel rods
d. None of the above
The answer is a, apical foramen. This is the small hole through which vessels and nerves enter the tooth’s pulp cavity.
12. Many dental health professionals recommend waiting to brush your teeth at least 30-60 minutes after consuming acidic foods or beverages so that the enamel has time to stabilize.
The answer is a, true. Dentists also recommend brushing at least two times a day and flossing at least one time per day.
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