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目的探讨应用微种植体对修复科转诊的关闭磨牙拔牙间隙、磨牙伸长等患者进行局部牙列治疗的临效果。方法选择2007年8月至2009年8月佛山市禅城区口腔医院收治的修复科转诊患者11例。其中3例因上颌磨牙缺失不愿接受修复治疗和全口正畸治疗的患者,在其缺失牙的近中颊、腭侧各植入1枚微种植体,缺失牙远中磨牙与微种植体间链状圈牵引,近中移动缺失牙远中的磨牙,关闭拔牙间隙。8例对牙伸长致缺牙区颌间距离过小不能修复的患者,单个牙伸长者在伸长牙的颊、腭侧各植入1枚微种植体,使2枚微种植体成对角;相邻2个牙均伸长者在2个牙之间的颊、腭侧各植入1枚微种植体,2枚种植体之间通过伸长牙的面挂链状圈或镍钛弹簧压低伸长牙。结果3例关闭磨牙拔牙间隙患者,经过6～10个月的牵引后,原缺牙区间隙关闭,牙齿移动区域与对牙的咬合关系基本正常。8例磨牙伸长患者应用微种植体加力5～9个月后,伸长牙被压低到其近(远)中边缘嵴与邻牙的边缘嵴平齐等高、修复颌间距离足够。两组患者X线牙片示根尖均无明显吸收。结论对一些特殊病例如第一或第二磨牙拔除后不愿接受修复治疗或全口固定矫治以及对牙伸长导致修复困难的患者等,可尝试应用微种植体对其进行局部治疗。
Objective To investigate the clinical effect of partial dentition in the treatment of closed dentition, molar extension and so on, which is referred to the restoration department with micro-implants. Methods From August 2007 to August 2009, Foshan City, Chancheng District Stomatological Hospital referral repair patients in 11 cases. Three of the patients who were unwilling to receive repair and orthodontic treatment due to the missing maxillary molars had one micro-implant in the mesio-buccal and palatal sides of the missing teeth, and the missing distal molar and micro-implants Between the chain ring traction, moving near the missing teeth in the molars, close the extraction gap. In 8 cases of tibialis incisors, the maxilla interdental distance was too small to be repaired in patients with single tooth extensor were implanted on the buccal and palatal sides of the elongate teeth each with 1 micro-implant so that 2 micro-implants Diagonal; two adjacent teeth were elongated between the two teeth in the cheek, palatal implantation of a micro-implant, the two implants through the elongated face of the chain hanging chain ring Or nitinol spring down elongated teeth. Results In 3 cases of patients who had closed the tooth extraction space, the gap of the original tooth area was closed after 6 to 10 months of traction. The occlusion between the tooth movement area and the fangs was basically normal. In 8 cases of molar extension, micro-implants were applied for 5 to 9 months. The stretched teeth were depressed to the same level as the marginal cristae of the adjacent teeth in the near (far) midline, and the intermaxillary distance was adequate. Two groups of patients showed no significant X-ray tooth root absorption. Conclusion In some special cases, such as the first or second molar removal after unwilling to receive repair or full-mouth orthodontic treatment and tingling extension lead to difficult to repair patients, you can try to use micro-implants for its local treatment.