ex·tru·sion ( k-str  zh n)n. 1. A thrusting or forcing out of a normal position. 2. The eruption or migration of a tooth beyond its normal occlusal position. |
extrusion
[ek·stro̅o̅′zhən]
Etymology: L, extrudere, to push out
1 thrusting or pushing out; expulsion by force.
2 the overeruption or movement of a tooth beyond its normal occlusal plane in the absence of opposing occlusal force.
3 an orthodontic technique for the elongation or elevation of a tooth. Compare intrusion.
extrusion [ek-stroo´zhun]
1. a pushing out.
2. in dentistry, the condition of a tooth pushed too far forward from the line of occlusion as a result of injury or of lack of opposing occlusal force.
extrusion
(ikstroo´zh
n),
n the movement of teeth beyond the natural occlusal plane that may be accompanied by a similar movement of investing tissues. See also eruption, continuous.
n), n the movement of teeth beyond the natural occlusal plane that may be accompanied by a similar movement of investing tissues. See also eruption, continuous.
extrusion
a pushing out; e.g. an orthodontic procedure which makes a tooth emerge further from its alveolus.
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