应用微型种植体作支抗压低磨牙的临床研究
方法；如果存在轻度的牙周疾病，正畸治疗之前应进行牙周治疗。在确认炎症已得到控制、口腔卫生维持较好的情况下才可开始正畸治疗。另外，磨牙需压低的量、治疗周期，患者的全身健康状况都需进行考虑。压低磨牙时关于压入力的选择[11]，Umemori等[12]推荐使用500 g的初始力值。对处于生长期的青少年，Kalra等[13]建议在压低磨牙时，每个牙使用90g左右的力。 Melson and Fiorelli[14]使用50 g左右的力压低成年患者的上颌磨牙。作者用50~200 g的力值压低3个牙根的上颌后牙，没有明显的牙根吸收。
4 结论
应用微型钛钉种植体作支抗压低磨牙具有一些值得推广的优势，它很少需要患者的配合，操作简单，疗效确切，不失为临床上一种可供选择的好方法。
参考文献
[1] Turley PK, Kean C, Schur J, et al Orthodontic force application to titanium endosseous implants [J] Angle Orthod, 1988, 58∶151-152
[2] Roberts WE, Helm FR, Marshall KJ, et al Rigid endosseous implants for orthodontic and orthopedic anchorage [J] Angle Orthod, 1989, 59∶247-255
[3] Higuchi KW, Slack JM The use of titanium fixtures for intraoral anchorage to facilitate orthodontic tooth movement [J] Int J Oral & Maxillofac Implants, 1991, 6∶338-344
[4] Roberts WE, Marshall KJ, Mozsary PG Rigid endosseous implant utilized as anchorage to protract molars and close an atrophic extraction site [J] Angle Orthod, 1990, 60∶135-152
[5] Umemori M, Sugawara J, Mitani H, et al Skeletal anchorage system for open-bite correction [J] Am J Orthod Dentofacial Orthop, 1999, 115∶166 -174
[6] Kanomi R Mini-implant for orthodontic anchorage [J] J Clin Orthod, 1997, 31∶763-767
[7] Gray JB, Smith R Transit
4 结论
应用微型钛钉种植体作支抗压低磨牙具有一些值得推广的优势，它很少需要患者的配合，操作简单，疗效确切，不失为临床上一种可供选择的好方法。
参考文献
[1] Turley PK, Kean C, Schur J, et al Orthodontic force application to titanium endosseous implants [J] Angle Orthod, 1988, 58∶151-152
[2] Roberts WE, Helm FR, Marshall KJ, et al Rigid endosseous implants for orthodontic and orthopedic anchorage [J] Angle Orthod, 1989, 59∶247-255
[3] Higuchi KW, Slack JM The use of titanium fixtures for intraoral anchorage to facilitate orthodontic tooth movement [J] Int J Oral & Maxillofac Implants, 1991, 6∶338-344
[4] Roberts WE, Marshall KJ, Mozsary PG Rigid endosseous implant utilized as anchorage to protract molars and close an atrophic extraction site [J] Angle Orthod, 1990, 60∶135-152
[5] Umemori M, Sugawara J, Mitani H, et al Skeletal anchorage system for open-bite correction [J] Am J Orthod Dentofacial Orthop, 1999, 115∶166 -174
[6] Kanomi R Mini-implant for orthodontic anchorage [J] J Clin Orthod, 1997, 31∶763-767
[7] Gray JB, Smith R Transit
