tooth movement

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The change of position of a tooth within the alveolar bone in response to an external force. When induced by an orthodontic appliance, it may involve rotation, bodily movement of a tooth in a mesial or distal direction without rotation ( translation), vertical movement (intrusion or extrusion), or a combination of rotation and translation (tipping). The tooth is capable of movement because of osteoclastic activity, where there is an increase in pressure resulting in bone resorption, and osteoblastic activity, where there is a decrease in pressure creating bone formation.

Subjects: Dentistry.

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