通常在牙槽窝内埋入种植体作支抗,但常不能满足最大支抗的要求。近年来,颌骨其他部位的骨内种植支抗受到关注,尤其是腭骨。但存在腭骨厚度问题,关系到种植体是否会穿通到鼻腔。本研究选择年龄15～39岁需正畸治疗患者12名(男女各半),为获得上颌的最大支抗,在腭骨矢向中部植入由瑞典Straumann研究所提供的钉状正畸系统种植体。植入前,预备进入道未发现有穿通到鼻腔,种植体位置由头侧位X线片 Implants are usually embedded in the alveolar fossa but often fail to meet the maximum support requirements. In recent years, bone graft support has been of interest in other parts of the jaw, especially the palatine bone. However, the problem of palatal thickness is related to whether the implants penetrate the nasal cavity. In this study, 12 patients (half male and half female) with orthodontic treatment of 15-39 years of age were selected. In order to obtain maximum maxillary maxilla support, a spiculated orthodontic system implant provided by Swedish Straumann Institute . Before implantation, the preparation of the entry tract was not found to have penetrated the nasal cavity, the implant position by the X-ray