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Questions and Answers
What is the primary function of the enamel in a tooth?
What is the primary function of the enamel in a tooth?
- Protecting the tooth from acids, bacteria, and physical damage (correct)
- Producing saliva for digestion
- Supporting the surrounding gums
- Anchoring the tooth to the jawbone
How many species of bacteria are normal to find in healthy sites of the human oral cavity?
How many species of bacteria are normal to find in healthy sites of the human oral cavity?
- Approximately 50 (correct)
- Less than 20
- Varies greatly among individuals
- Over 100
At what age do permanent teeth start to appear, replacing the original deciduous 'milk' teeth?
At what age do permanent teeth start to appear, replacing the original deciduous 'milk' teeth?
- 4
- 8
- 6 (correct)
- 10
Which substance is primarily composed of hydroxyapatite and serves as the outermost layer of the tooth?
Which substance is primarily composed of hydroxyapatite and serves as the outermost layer of the tooth?
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What are the three major parts that make up a tooth?
What are the three major parts that make up a tooth?
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Which dental tissue is softer than enamel but harder than pulp?
Which dental tissue is softer than enamel but harder than pulp?
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What is the main cause of cavities and gum disease?
What is the main cause of cavities and gum disease?
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What can tooth sensitivity be caused by?
What can tooth sensitivity be caused by?
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What is the major cause of tooth loss among adults?
What is the major cause of tooth loss among adults?
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What can cause tooth discoloration or stains?
What can cause tooth discoloration or stains?
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