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26 Cards in this Set
- Front
- Back
Periodontium |
functional system of tissues that surrounds the teeth and attaches them to the jaw bone. AKA attachment apparatus |
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Gingiva |
tissue that covers the cervical portions of teeth and the alveolar processes of the jaws |
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Periodontal ligamament (PDL) |
fibers that surround the root of the tooth. These fibers attach to the bone of the socket on one side and the cementum of the root on the other side. |
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Cementum |
thin layer of mineralized tissue that covers the root of the tooth |
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Alveolar bone |
bone that surrounds the roots of the teeth. It forms the bony sockets that support and protect the roots. |
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Gingival margin |
thin, rounded edge of the free gingiva that forms the coronal boundary of the gingiva. In health, it contacts the tooth slightly coronal to the CEJ |
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Alveolar mucosa |
the apical boundary of the gingiva; dark red, smooth and shiny |
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Free gingival groove |
a shallow linear depression that seperates the free and attached gingiva. It may or may not be visible clinically |
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Mucogingival junction |
Clinically visible boundary where pink attached gingiva meets red, shiny alveolar mucosa |
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Free gingiva |
unattached portion of the gingiva that surrounds the tooth in the region of the CEJ AKA unattched or marginal gingiva |
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Attached gingiva |
part of the gingiva that is firm, dense, and tightly connected to cementum on the cervical third of the root or to the periosteum (connective tissue cover) of the alveolar bone |
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Stippling |
dimpled appearance that may be visible on surface of attached gingiva |
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Interdental gingiva |
portion of the gingiva that fills the interdental embrasure between 2 adjacent teeth apical to the contact area. Consists of 2 interdental papillae |
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Gingival sulcus |
space between the free gingiva and the tooth surface |
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Gingival crevicular fluid |
fluid that flows into the sulcus from the adjacent gingival connective tissue |
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Alveolar process |
the bone of the upper or lower jaw that surrounds and supports the roots of the teeth |
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alveolar bone proper |
the thin layer of bone that lines the socket to surround the root of the tooth (AKA cribriform plate); the ends of the PDL fibers are embedded here |
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Alveolus |
the bony socket, a cavity in the alveolar bone that houses the root of the tooth |
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Cortical bone |
layer of compact bone that forms the hard, outside wall of the mandible and maxilla on the facial and lingual aspects. It surrounds the alveolar bone proper and gives support to the socket. |
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Alveolar crest |
the most coronal portion of the alveolar process. In health, it is located 1-2 mm apical to the CEJ |
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Cancellous bone |
Lattice-like bone that fills the interior portion of the alveolar process between the cortical bone and the alveolar bone proper. It is oriented around the tooth to form support for the alveolar bone proper |
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Periosteum |
Dense membrane composed of fibrous connective tissue that closely wraps the outer surface of alveolar bone. Composed of outer layer of collagenous tissue, inner layer of fine elastic fibers |
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Anastamose |
to join together Periodontium is supplied by a complex system of blood vessels |
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Trigeminal nerve |
innervates the periodontium |
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Lymphatic system |
network of lymph nodes connected by lymphatic vessels that plays an important role in defense against infection |
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Lymph nodes |
small, bean shaped structures located on either side of head, neck, armpits, groin. Filter out and trap baceria, fungi, and viruses and eliminate them |