Questions and Answers
What is the clinical crown of a tooth?
The part of the tooth visible above the gingiva.
What part of the dental arch holds the root of the tooth?
Alveolar process.
Which of these are the four tooth tissues?
What is reparative dentin?
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What are the three basic functions of teeth?
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What is a line angle in dental terms?
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What is a point angle?
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What are lobes in dental development?
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What are triangular ridges?
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What is a transverse ridge?
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What does occlusion refer to?
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What is centric occlusion?
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What is malocclusion?
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Who developed Angle's classification system?
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Study Notes
Teeth Structure and Anatomy
- Clinical crown refers to the portion of the tooth visible above the gingiva; unerupted parts are considered part of the clinical root.
- The tooth consists of coronal, cervical, and apical areas.
- The root anchors into the alveolar process, fitting into the bony socket called the alveolus.
- Maxillary teeth reside in the upper jaw (maxilla), while mandibular teeth are found in the lower jaw (mandible).
Tooth Tissues
- Four main tooth tissues: enamel, dentin, cementum (hard tissues), and dental pulp (soft tissue).
- Reparative dentin forms rapidly in response to dental injuries such as deep decay or fractures.
Tooth Functions
- Teeth function in food processing through cutting, holding, and grinding based on their shape and size.
Dental Anatomy
- Line angles form at the junction of two tooth surfaces, while point angles occur where three surfaces meet.
- Teeth develop from multiple lobes, typically four or more.
Posterior Teeth Characteristics
- Cusps are the primary landmarks on posterior teeth, formed by four ridges, especially prominent with triangular ridges.
- Transverse ridges form when two triangular ridges cross the occlusal surface.
Occlusion and Malocclusion
- Occlusion is the contact relationship between maxillary and mandibular teeth in a closed position.
- Centric occlusion refers to the optimal contact of teeth when jaws are closed, with condyles positioned in the glenoid fossa.
- Normal occlusion involves specific positioning of maxillary and mandibular teeth for effective food grinding.
Malocclusion Details
- Malocclusion is the improper relationship between maxillary and mandibular teeth when closed.
- Angle's classification system categorizes occlusion and malocclusion based on the alignment of the molars, developed by Dr. Edward H. Angle in 1890.
- The classification focuses on the relationship of the mandibular first molar's buccal groove to the maxillary first molar's mesiobuccal cusp, assuming centric occlusion.
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Description
Test your knowledge on dental anatomy, tooth structure, and the functions of teeth. This quiz covers everything from the clinical crown to the four main tooth tissues. Dive into the details of how teeth are anchored and their roles in food processing.
