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| The function system of tissues that surrounds the teeth and attaches them to the jawbone. These tissues include the gingiva, periodontal ligament, cementum, and alveolar bone |
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| The tissue that covers the cervical portions of the teeth and the alveolar processes of the jaws. it is composed of a thin layer of epithelium and an underlaying core of connective tissue |
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| The unattached portion of the gingiva that surrounds the toothin the region of the cementoenamel junction |
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| Space between the free gingiva and the tooth surface |
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| The part of the gingiva that is tightly attached to the cementum on the cervical 1/3 of the root and to the periosteum ( connected tissue cover) of the alveolar bone |
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| The dimpling appearance, similar to an orange peal, that may be visible on the surface of the attached gingiva |
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| Area directly below the contact |
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Linear depression that separates free and attached gingiva. Clinically visible 24-43% of the time and most common in Mand. anteriors, premolars Attached gingiva |
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| the clinically visible boundary where the pink attached gingiva meets the red, shiny alveolar mucosa |
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| a layer of soft connective tissue that covers the root of the tooth it attaches it to the bone of the socket |
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Hard, mineralized tissue that is 45-50% inorganic hydroxyapatite. It covers the root (dentin) and is usually light yellow in color. MORE RESISTANT TO RESORPTION THAN BONE and devoid of nerve and blood supply. It must receive nutrients from ligament |
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Forms and supports the tooth socket No teeth—no alveolar process Innervated by blood supply and nerves
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The bone that forms the hard, outside wall of the mandible and max. on the facial and lingual aspects
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Cleft defect in the cortical bone which includes the margin of the bone. Prominent root contour Malalignment of teeth Loss of attached gingiva Severe periodontal disease Abscess Cyst Defects of the cortical bone
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| AKA Spongy Bone. The latticelike bone that fills the interior portion of the alveolar process. Found between the cortical bone and the cortical bone and the alveolar bone proper |
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Bony socket. A cavity in the alveolar bone that houses the root of the tooth |
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| The thin layer of bone that lines each alveolus |
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Made up of.... Gingiva Periodontal ligament Alveolar bone Root cementum Functions of the periodontium Provide a seal around the cervical portion of the tooth Holds the tissue against the tooth during mastication Suspends and maintains the tooth in its socket Protect the dentin Surrounds and supports the root |
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| The most coronal portion of the alveolar process. in health the crest is located 1 -2 mm apical to the CEJ |
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| The area of bone that lies between the proximal surfaces of two teeth surface. The interproximal bone is also known as the interdental septum |
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| The bone between the roots of a multirooted tooth |
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| The neve supply to the periodontium |
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| The joining together of blood vessels to create a complex system of vessels |
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| A branch of anatomy concerned with the study of the microscoptic structure of tissue |
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smallest structural unit of living matter capable of functioning independently 100 trillion in the human body |
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| A meshlike material that surrounds a cell. This material helps to hold cells and tissue together and provides a medium within which cells can migrate and interact with one another |
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| Meshlike material that surrounds the cells which helps hold cells and tissue together and provide a medium within which cells can migrate and interact with one another |
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| makes up the outer surface of the body (skin) and line of the body cavities such as the mouth |
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| Stratified squamous epithelium |
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| A type od epithelium that comprises flat cells arranged in several layers |
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Made up of Keratinized and Nonkertinized layers Keratinized layers are stronger and waterproof |
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| No nuclei, tough, resistant, the more keratinization the more wear the tissue gets ie. palms, soles. ect. |
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| Have nuclei that works like a cushion against mechanical wear ie. cheeks |
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- A thin tough sheet that separates the epithelial tissue from the underlying connective tissue.
- It rests on a supporting bed of connective tissue
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| Cellular structures that mechically attach a cell and its cytoskeleton to its neighboring cells or to the basal lamina |
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| A specialized cell junction that connects the epithelial cells to the basal lamina |
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| A specialized cell junction that connects the epithelial cells to the basal lamina |
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| Fills the space between the tissues and organs in the body. It is made up of a large amount of material that surrounds the cell |
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| Extracellular Ground Substance |
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| Is a meshlike material that surrounds the cell |
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Epithelium-connective tissue interface |
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The boundary where the epithelial and connective tissue meet
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| Deep extensions of epithelium that reaches down into the connective tissue. The epithelia ridges are also known as rete pegs |
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| Connective Tissue Papillae |
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| Fingerlike extensions of connective tissue that extends up into the epithelium |
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| A specialized stratified squamous epithelium that functions well in the wet environment of the oral cavity. |
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| Epithelium that covers the outer surface of the free gingiva and attached gingiva....it extends from the gingival margin to the mucogingival junction |
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Epithelial lining of the gingival sulcus.... it extends from the crest of the gingival margin to the coronal edge of the JE |
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Junctional Epithlium (JE) |
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| Epithlium that forms the base of the sulcus and joins the gingiva to the tooth surface |
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| A tin mat of extracellular matrix between the epithelial cells of the JE and the tooth surface |
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| A thin mat of extracellular matrix between the epithelial cells of the JE and the gingival connective tissue |
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AKA...Dental cuticle or acquired. A membrane that lies between the tooth and the internal basal lamina |
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Extracellular matrix a dense network of strong, ropelike cables that secure and hold the gingival connective tissue together |
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| Supragingival Fiber Bundles |
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Gingival fibers-the network of ropelike collegen fiber bundles located cornal to above the crest of the alveolar bone
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| Dentogingival fiber bundles |
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| Includes that portion of the tooth surface that is covered by the JE and the connective tissue including the supragingival fiber bundles |
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| Is a thin sheet of fibrous connective tissue located between the tooth and its bony socket. Attaches the tooth and the bony wall of the tooth socket |
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| Where the ends of the PDL fibers that are embedded in the cementum and alveolar bone attach. The LITTLE fingers at the end of the PDL that attach to the alveolar bone and the cementum covering the dentin |
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| A calcified layer of connective tissue that covers the root of the tooth. |
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Overlap 60% Meet 30% Gap 10% |
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Alveolar bone alveolar process |
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| The bone of the upper or lower jaw that surrounds and supports the roots of the teeth |
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| The sequence of events that occur during the development of a disease or abnormal condition |
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| Bacertial infection of the periodontium |
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| bacterial infection limited to the gingiva |
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| a stage of periodontal disease that only can be seen microscopically. Lack visible signs |
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| A stage of periodontal disease effecting the gingiva, PDL, alveolar bone, and cementum |
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| Apical migration of the junctional epithelium |
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Occurs when the PDL bundle is broken |
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| The body's reaction to injury or invasion by disease-producing organism |
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| suprabony bone loss starting with gingival connective tissue, alveolar, PDL |
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infrabony vertical bone loss gingival connective tissue, PDL, alveolar bone |
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| Loss of attachment of fibers and bone |
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| An area of tissue destruction |
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| Disease site that is stable |
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| disease state that shows continued apical migration |
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| deeping pocket that is enlarged due to inflammation |
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| pathological deepening of the gingival sulcus with apical migration of the junctional epithelium, distruction of PDL, and destruction alveolar bone |
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Study of health and disease and associated factors in human populations* |
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| Factors involved in the development of a disease. |
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# of new disease cases in a population that occur during a given interval. |
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