Podcast
Questions and Answers
Which of the following tissues is NOT part of the periodontium?
Which of the following tissues is NOT part of the periodontium?
What anatomical structure forms the base of the sulcus?
What anatomical structure forms the base of the sulcus?
Junctional Epithelium
During mastication, the tooth is cushioned from occlusal forces by the:
During mastication, the tooth is cushioned from occlusal forces by the:
periodontal ligament
If a tooth did not have this anatomical structure, it might fall out of its socket:
If a tooth did not have this anatomical structure, it might fall out of its socket:
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Which anatomical area of the periodontium could be removed from the tooth after years of instrumentation?
Which anatomical area of the periodontium could be removed from the tooth after years of instrumentation?
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Which anatomical area of the gingiva is 'missing', resulting in the 'open spaces' observed?
Which anatomical area of the gingiva is 'missing', resulting in the 'open spaces' observed?
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After the extraction of a tooth, what anatomical structure will be observed in the tooth socket?
After the extraction of a tooth, what anatomical structure will be observed in the tooth socket?
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Which of the following structures holds the gingival tissue against the tooth during mastication?
Which of the following structures holds the gingival tissue against the tooth during mastication?
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The coronal-most edge of the gingiva is the alveolar mucosa. Alveolar mucosa is distinguished by its dark red color and smooth, shiny surface.
The coronal-most edge of the gingiva is the alveolar mucosa. Alveolar mucosa is distinguished by its dark red color and smooth, shiny surface.
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What shallow linear depression separates the free and attached gingiva?
What shallow linear depression separates the free and attached gingiva?
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The difference between the free gingiva and attached gingiva is that?
The difference between the free gingiva and attached gingiva is that?
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The space between the free gingiva and tooth surface is called?
The space between the free gingiva and tooth surface is called?
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The interdental gingiva has two interdental papillae. The interdental gingiva has one papilla on the facial and one papilla on the lingual.
The interdental gingiva has two interdental papillae. The interdental gingiva has one papilla on the facial and one papilla on the lingual.
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The depth of a clinically normal gingival sulcus is no greater than?
The depth of a clinically normal gingival sulcus is no greater than?
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Which of the following statements is false about the functional epithelium?
Which of the following statements is false about the functional epithelium?
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Which of the following is NOT a function of the periodontal ligament?
Which of the following is NOT a function of the periodontal ligament?
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The col is the space between the tooth surface and the free gingiva. It is a space that lies directly apical to the contact area.
The col is the space between the tooth surface and the free gingiva. It is a space that lies directly apical to the contact area.
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The periodontal ligament can remodel alveolar bone in response to pressure. The periodontal ligament can provide nutrients to cementum and bone.
The periodontal ligament can remodel alveolar bone in response to pressure. The periodontal ligament can provide nutrients to cementum and bone.
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A thin layer of yellow, hard, mineralized tissue that is attached to dentin of the root refers to which tissue?
A thin layer of yellow, hard, mineralized tissue that is attached to dentin of the root refers to which tissue?
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Without cementum, the tooth would fall out of the socket. Cementum anchors the ends of periodontal ligament fibers to the tooth.
Without cementum, the tooth would fall out of the socket. Cementum anchors the ends of periodontal ligament fibers to the tooth.
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The existence of alveolar bone is dependent on the presence of teeth. When teeth are extracted, alveolar bone resorbs.
The existence of alveolar bone is dependent on the presence of teeth. When teeth are extracted, alveolar bone resorbs.
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Which of the following is NOT one of the layers of the alveolar process?
Which of the following is NOT one of the layers of the alveolar process?
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Lattice-like bone that fills the interior portion of the alveolar process refers to:
Lattice-like bone that fills the interior portion of the alveolar process refers to:
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The thin layer of bone that lines the socket to surround the root of the tooth is called?
The thin layer of bone that lines the socket to surround the root of the tooth is called?
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The alveolar crest follows the contours of the cementoenamel junctions of teeth. In health, the alveolar crest covers the cementoenamel junctions of teeth.
The alveolar crest follows the contours of the cementoenamel junctions of teeth. In health, the alveolar crest covers the cementoenamel junctions of teeth.
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The space in alveolar bone that houses the roots of teeth is referred to as?
The space in alveolar bone that houses the roots of teeth is referred to as?
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Nerve supply to the periodontium is derived from branches of the _______ nerve.
Nerve supply to the periodontium is derived from branches of the _______ nerve.
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Innervation of the teeth and periodontal ligament of the maxillary arch is from the ________ alveolar nerves, and innervation of the teeth and periodontal ligament of the mandibular arch is from the __________ alveolar nerves.
Innervation of the teeth and periodontal ligament of the maxillary arch is from the ________ alveolar nerves, and innervation of the teeth and periodontal ligament of the mandibular arch is from the __________ alveolar nerves.
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Blood vessels can anastomose with nerves to create a vascular system that carries oxygen to tissues and feeling to the pulp of the tooth. The major function of the vascular supply is to carry carbon dioxide and other nutrients to tissues.
Blood vessels can anastomose with nerves to create a vascular system that carries oxygen to tissues and feeling to the pulp of the tooth. The major function of the vascular supply is to carry carbon dioxide and other nutrients to tissues.
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Lymph from the periodontal tissues is drained to the lymph nodes of the?
Lymph from the periodontal tissues is drained to the lymph nodes of the?
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Which of the following lymph nodes drain most of the periodontal tissues?
Which of the following lymph nodes drain most of the periodontal tissues?
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Which of the following is NOT filtered out by the lymph nodes?
Which of the following is NOT filtered out by the lymph nodes?
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Study Notes
Periodontium and Its Components
- Alveolar mucosa is not part of the periodontium.
- Junctional epithelium forms the base of a healthy sulcus probed by a dental hygienist.
- The periodontal ligament cushions teeth during mastication from occlusal forces.
- Cementum is essential; without it, a tooth might fall out of its socket.
- Prolonged periodontal instrumentation can lead to the removal of the cementum from the teeth.
Gingiva and Periodontal Health
- "Open spaces" observed in gingival tissue indicate missing interdental gingiva.
- Alveolar bone proper is visible in the tooth socket after an extraction.
- The gingiva holds the gingival tissue against the tooth during mastication.
- Free gingiva is unattached, while attached gingiva is firmly connected to cementum.
Sulcus Depth and Anatomy
- The gingival sulcus is the space between the free gingiva and tooth surface, with a normal depth of no more than 3mm.
- Interdental gingiva comprises two papillae, one on the facial and one on the lingual side.
Functional Aspects of the Periodontal Structures
- Junctional epithelium marks the transition where the alveolar mucosa meets attached gingiva.
- Periodontal ligament functions do not include preventing food packing in the sulcus.
- The col is the space beneath the contact area of adjacent teeth, but it is not the same as the tooth surface and free gingiva.
- Periodontal ligament can remodel alveolar bone due to pressure and provides nutrients to cementum and bone.
Tissues and Bone Structures
- Cementum is a yellow, hard, mineralized tissue attached to the root's dentin.
- Alveolar bone is dependent on the presence of teeth; resorption occurs after tooth extraction.
- The alveolar process consists of layers, excluding the ramus.
- Cancellous bone fills the interior of the alveolar process, while alveolar bone proper lines the socket.
Vascular and Nerve Supply to Periodontium
- The trigeminal nerve supplies innervation to the periodontium.
- Maxillary arch innervation is from the superior alveolar nerves; the mandibular arch receives innervation from the inferior alveolar nerves.
- Blood vessels do not primarily function to carry carbon dioxide and nutrients; the statement is false.
Lymphatic Drainage
- Periodontal tissue lymph drains to lymph nodes in the head and neck region.
- Submandibular lymph nodes are the primary drainage point for most periodontal tissues.
- Lymph nodes do not filter food debris out of the lymphatic system.
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Description
Test your knowledge on the periodontium and its components, as well as the significance of the gingiva in periodontal health. This quiz covers essential concepts such as the structure of alveolar bone, gingival sulcus anatomy, and the role of cementum. Prepare to enhance your understanding of dental hygiene and periodontal care.
