Park Hyo-Sang, Kwon Tae-Geon
Department of Orthodontics, College of Dentistry, Kyungpook National University, Taegu, South Korea.
Angle Orthod. 2004 Oct;74(5):703-10. doi: 10.1043/0003-3219(2004)074<0703:SMWMIA>2.0.CO;2.
Three cases are illustrated. One was treated with maxillary microscrew implants, another with mandibular microscrew implants, and the third with both maxillary and mandibular microscrew implants. With the maxillary microscrew implants, the maxillary anterior teeth were retracted bodily with a slight intrusion and all the premolar extraction space was closed without loss of anchorage. Furthermore, the maxillary posterior teeth showed distal movement. The mandibular microscrew implants controlled the vertical position of the mandibular posterior teeth and played an important role in improving the facial profile. The efficacy of sliding mechanics with microscrew implant anchorage on the treatment of skeletal Class II malocclusion is also discussed.
文中展示了三个病例。一例采用上颌微螺钉种植体进行治疗，另一例采用下颌微螺钉种植体，第三例则同时使用上颌和下颌微螺钉种植体。使用上颌微螺钉种植体时，上颌前牙整体内收并略有压低，所有拔牙间隙均关闭且未丧失支抗。此外，上颌后牙出现远中移动。下颌微螺钉种植体控制了下颌后牙的垂直位置，在改善面部轮廓方面发挥了重要作用。文中还讨论了微螺钉种植体支抗滑动机制在治疗骨性安氏II类错牙合中的疗效。
