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DA Chapter 8
DA Chapter 8 FINAL
Question | Answer |
---|---|
The softest tooth structure is the? | Cementum |
The vertical groove on the midline of the upper lip is called? | Philtrum |
A tooth emerging from the gums is called? | Eruption |
The structure of the tooth that covers the outside of the crown is called the? | Enamel |
Name the connective tissue that is formed by the fibroblast cells and secures the tooth into the socket by a number of organized fiber groups? | Periodontal Ligaments (PDL) |
The hardest living tissue in the body is? | Enamel |
Primary teeth may erupt with a covering over the enamel, called? | Nasmyth's Membrane |
What is softer than enamel but harder than cementum and bone? | Dentin |
________ tubules pass through the entire surface of the tooth. | Dentinal |
The most pronounced stained contour line, which occurs due to the trauma of birth, is? | Neonatal Line |
What is the function of the pulp? | Nourishes and supports dentin |
The pulp is partially made from ________, cells from which connective tissue evolves. | Fibroblast |
If the pulp is damaged due to an injury,the tissue may become inflamed, causing? | Pulpitis |
The ________ consists of portions of the tooth structure, supporting hard and soft dental tissues, and the alveolar bone. | Periodontum |
Name the characteristics of cementum... | Softer than dentin and enamel, Lighter than dentin, Darker than enamel, Coarser. covers the root |
The collagen fibers that act as anchors between the alveolar bone and teeth are called? | Sharpey Fibers |
The cells that remodel and resorb bone are called? | Osteoclasts |
On a dental radiograph, the radiopaque line, or ________ represents the thin, compact alveolus bone lining the socket. | Lamina Dura |
The periodontal ligament, like all connective tissue, is formed by ________ cells. | Fibroblast |
________ mucosa flows into the tissue of the cheeks, lips and floor of the mandible. | Alveolor |
What is signs of healthy gums or gingiva? | Firm, Tight, Stippled, Pink |
Free gingiva is also known as? | Marginal |
The mucogingival junction is the line of demarcation between the _______ gingiva and ________ mucosa. | Attached, Aveolor |
The space between the unattached gingiva and the tooth is the? | Gingival Sulcus |
In the floor of the gingival sulcus, athe ________ attachment attaches to the enamel surface of the teeth. | Epithelial |
In a healthy mouth, the gingival sulcus space would not exceed _____ millimeters in depth. | 1-3 |
T/F Healthy gums have shiny slick surface. | True |
What gives some teeth their yellow tone? | Cementum |
What tissue gives sensory function? | Pulp |
At the________. two cortical bone plates come together between each tooth. | Alveolar crest |
Define Intertubular dentin... | Found between the tubules |
Define Circumpulpal dentin... | Layer of dentin surrounding the pulp |
Define Primary dentin... | Forms the bulk of the tooth |
Define secondary dentin... | Forms after completion of the apical foramen |
Define tertiary dentin... | repairs and is reactive to irritation. |