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identifier@ XElX ɽ Pȩ ȲՀX ½X@ Ű X u0 0x Q% \ \Քƌ tThree-dimensional finite element analysis of stress distribution for uprighting the mesially tipped mandibular molar using indirect mini-implant anchorage2007XXYY XXYPXXYtTŐYP XXYYMasterMaster's ThesisHThe purpose of this study was to investigate the stress distribution of tipped molar and anchor tooth using indirect mini-implant anchorage for uprighting the mesially tipped lower 2nd molar. Finite element model analysis was used to explore the differences between control model(without mini- implant anchorage) and 3 experimental models depending on different length of connecting wire from mini-implant to anchor tooth and different wire diameter.
The results were as follows
1. The stress distribution of anchor tooth reduced in condition 1 compared to that in the control model.
2. The stress distribution of anchor tooth increased in condition 2 compared to that in condition1.
3. The stress distribution of anchor tooth reduced in condition 3 compared to that in the condition 2.
4. The stress distribution of the tipped mandibular second molar was similar in all experimental medel.
These results indicate that the shorter the length of the connecting wire and the thicker the diameter of connecting wire are, the more effective for the anchorage stress distribution is. The better location of the mini-implant to compensate the stress of the anchor tooth could be more effective for anchorage control, although the length of the connecting wire gets longer.
Therefore more study about the location of the mini-implant will be needed in consideration of the length and thickness of the connecting wire.;ȲՀ| 1<\ tǩ\ XE 2lXX ɽ , lX@ XՔ Q% | \Քƌ<\ X. ȲՀ| ½X J@ pȨx ȲՀX ½ X 0x 8 X ըxD \Քƌ<\ \ L X.
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