【摘要】 目的研究腭侧微螺钉型种植体支抗在上颌前突治疗中的临床应用效果。方法选择上颌前突需强支抗矫治的患者22例,年龄18~25岁,分试验组和对照组,每组11例,试验组于上颌双侧腭侧应用微螺钉型种植体支抗,对照组用口外弓支抗,治疗前后采用X线对头颅片进行测量,比较2组治疗前后软硬组织的变化差异。结果试验组:治疗后U1-NA(mm:3.08±1.18 vs 8.15±3.05)、U1-SN(101.90°±3.50°vs 117.90°±6.05°)较治疗前减小,U1-L1(123.98°±5.78°vs 103.89°±8.95°)较治疗前增大(P<0.05)。对照组:治疗后U1-NA(mm:5.01±1.34 vs 9.12±2.13)、U1–SN(101.90°±3.97°vs 114.87°±7.69°)较治疗前减小,U1-L1(126.01°±3.12°vs 112.98°±5.98°)、U6-PtPNS(mm:21.45±2.43 vs 18.36±2.19)较治疗前增大(P<0.05)。试验组U1-L1(19.48°±8.90°vs 13.01°±5.90°)数值改变量大于对照组,U6-PtPNS(mm:0.90±0.29 vs 3.78±0.12)数值改变量小于对照组(P<0.05)。结论治疗上颌前突患者,上颌需要强支抗时,可应用腭侧微螺钉型种植体支抗。更多还原

【Abstract】 Objective To investigate the clinic application of micro-implant anchorage in the treatment of maxil-lary protrusion malocclusion. Methods Twenty-two patients,aged 18 to 25 years old,with maxillary protrusion were divid-ed into two groups: experimental group and control group with 11 patients in each group. All patients were treated with ex-traction. Micro-screw palatal implant was used in the cases of experimental group as orthodontic anchorage,and traditionalanchorage composed of extraoral arch used in the cases of control. The cephalometric films were measured before and aftertreatment. Statistical methods were utilized to analyze the morphological changes of facial profile and hard tissues in bothgroups. Results The values of U1-NA(mm:3.08±1.18 vs 8.15±3.05) and U1-SN(101.90°±3.50° vs 117.90°±6.05°) were sig-nificantly decreased after treatment compared with those before treatment in the experimental group(P < 0.01). The value ofU1-L1(123.98°±5.78°vs 103.89°±8.95°) was significantly increased after treatment(P<0.01). In control group, the values ofU1-NA(mm:5.01±1.34 vs 9.12±2.13) and U1–SN(101.90°±3.97° vs 114.87°±7.69°)were significantly decreased after treat-ment. The values of U1-L1(126.01°±3.12°vs 112.98°±5.98°) and U6-PtPNS(mm: 21.45±2.43 vs 18.36±2.19)were significant-ly increased after treatment(P < 0.05). The value of U1-L1(19.48°±8.90° vs 13.01°±5.90°) was significantly changed in exper-imental group than that of control group, but the value of U6-PtPNS(mm: 0.90±0.29 vs 3.78±0.12)was significantly changedin control than that of experimental group(P < 0.01). Conclusion The maxillary protrusion malocclusion with micro-im-plant anchorage can be used as treatment for patients with maxillary protrusion that needs strong anchorage.更多还原