intrusion

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intrusion

[in·tro̅o̅′zhən]
Etymology: L, intrudere, to push or force in
an orthodontic technique of depressing a tooth back into the occlusal plane or attempting to prevent its eruption or elongation during correction of an excessive overbite. Compare extrusion (def. 3).

intrusion

an orthodontic procedure in which a tooth is made to move further into the alveolus.
References in periodicals archive ?
24) Five zircon separates from the Gamitagama Lake Complex, an igneous intrusion in southern Canada, define an excellent straight-line discordia that intersects concordia at 2.
Obviously, high heat flow was associated with this crustal thinning and igneous intrusion.
Simpson (1954) recorded that the sediments of the Abakaliki-Benue Trough underwent a minor folding phase during the Cenomanian and a major one accompanied by igneous intrusions during the Santonian.
New geochemical data allows the local tectonics and mantle dynamics during the obduction of the Khanozai and Muslim Bagh ophiolites to be further constrained, as to date, these are the youngest discovered igneous intrusions within the area (- 55 - 35 Ma).