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Questions and Answers
What process is primarily responsible for the destruction of tooth tissues in dental caries?
What process is primarily responsible for the destruction of tooth tissues in dental caries?
- Acid-producing bacteria (correct)
- Enzymatic breakdown
- Mechanical abrasion
- Thermal damage
Which ions are essential for the remineralization of partially demineralized tooth structure?
Which ions are essential for the remineralization of partially demineralized tooth structure?
- Magnesium and bicarbonate
- Iron and zinc
- Sodium and chloride
- Calcium and phosphate (correct)
What type of caries occurs at the junction of a restoration and a tooth?
What type of caries occurs at the junction of a restoration and a tooth?
- Tertiary caries
- Secondary caries (correct)
- Primary caries
- Chronic caries
Which phase alternates with demineralization in the caries process?
Which phase alternates with demineralization in the caries process?
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What is the primary characteristic of primary caries?
What is the primary characteristic of primary caries?
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Study Notes
Dental Caries
- An infectious microbiological disease causing localized demineralization and destruction of teeth tissues.
- Caused by acid-producing bacteria, leading to decalcification of tooth's inorganic portion.
- The organic portion is then disintegrated by the bacteria's activity.
- Characterized by alternating phases of demineralization and remineralization, where the demineralized tooth structure can be remineralized by calcium and phosphate ions present in saliva or remineralizing solutions.
- Understanding the balance between demineralization and remineralization is crucial for effective caries management.
- Caries can be categorized by type, location, extent, and rate.
- Primary caries is the initial carious lesion on a healthy tooth.
- Secondary caries, also known as recurrent caries, occurs at the junction of a restoration and the tooth.
- Secondary caries can progress under the restoration if the margins are not properly sealed.
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