The use of temporary anchorage devices for molar intrusion - ScienceDirect

在人體的上下顎骨當中,存在著不同等級的骨頭密度,骨頭也分成緻密骨(compact bone)與海綿骨(cancellous bone),在骨釘的口內操作中,務必要了解骨頭的厚度,才能在骨釘植入後提供較佳的錨定/支抗(anchorage),讓力源能夠穩定的施力,從而使牙齒得到該有的移動

如上圖所示,像IZC與BS(顴骨下脊與頰棚)骨釘均數D3級別,可以不須用motor-driven帶動直接可以鎖入骨釘,像D1則較硬,需先在骨頭鑽孔,再植入

Acta Scientific | International Open Library | Open Access Journals Publishing Group

@齒顎矯正每日一說~~0230 safe zones of

@齒顎矯正每日一說~~0230 safe zones of

@齒顎矯正每日一說~~0230 safe zones of

PPT - IMPLANTOLOGY QUESTIONS & ANSWERS PowerPoint Presentation - ID:4934914

Biological Basis of Miniscrew ImplantBiological Basis of Miniscrew Implant AnchorageAnchorage Hounsfield Classification of Bone Density •D1: Dense compact bone •D2: Dense to thick porous compact bone on the outside and coarse trabecular bone on the inside •D3: Porous compact and fine trabecular bone •D4: Fine trabecular bone •D5: Immature, non-mineralized bone D1 D2 D3 D4

Reference and Techniques used in Alveolar Bone Classification | OMICS International

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