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Fall341
WEEK 7
Term | Definition |
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Cancellous Bone | Spongy or latticelike structure composed mainly of bone tissue. -Composed generally of heavy trabeculae or plates of bone with bone marrow spaces between them. *Bone Marrow ( the largest organ in the body & represents approximately 4.5% of body weight) |
Cemental Support | Functions as a support by attaching to perforating fibers of the periodontal ligament at the root surface. -Some areas of the cementum are inactive, with the absence of fiber bundles, or they undergo. surface resorption. |
Orthodontic Tipping Movement | Necessary to accomplish the change in occlusion desired. -Pressure applied on a specific point on the tooth causes compression in a limited area between the root and the bone. |
Orthodontic Bodily Movement | The root is moved in the same direction, affecting the entire surface of the socket. -Compression changes occur in the ligament along the advancing root surface, & tension changes occur in the ligament fibers, bone, & cementum along the opposite surface |