Pattabiraman Vinod, Kumari Shashikala, Sood Raghav
Department of Orthodontics and Dentofacial Orthopedics, Vydehi Institute of Dental Sciences, Bangalore, India.
Orthodontics (Chic.). 2011 Winter;12(4):396-9.
Maximum anchorage situations require appropriate anchorage control from the very beginning. This includes control of anchorage in the anteroposterior as well as vertical directions. The requirement is more critical in patients with vertical growth patterns. Loss of anchorage in such situations requires recovery mechanics that will not tax the anchor teeth in any direction while maximizing efficiency. This article describes the use of a mini-implant-supported sliding jig in one such case where unilateral anchor loss in the maxillary arch was observed. A modified sliding jig was supported with Class II elastics stretched from a mini-implant placed in the mandible. With little patient compliance, the mini-implant was used to distalize the maxillary molar to regain the lost space and achieve ideal results in the most efficient way.
最大支抗情况从一开始就需要适当的支抗控制。这包括在前后方向以及垂直方向上对支抗的控制。对于垂直生长型的患者，这一要求更为关键。在这种情况下支抗丧失需要恢复力学装置，该装置在任何方向上都不会给支抗牙增加负担，同时能最大限度地提高效率。本文描述了在一个观察到上颌牙弓单侧支抗丧失的病例中使用微型种植体支持的滑动矫治器的情况。一种改良的滑动矫治器由从下颌植入的微型种植体拉伸的II类弹力牵引装置支持。在患者配合度较低的情况下，微型种植体被用于远中移动上颌磨牙以恢复丧失的间隙，并以最有效的方式取得了理想的效果。
