【摘要】 目的观察即刻加载自攻微种植体在上下颌后牙区成功率有否区别。方法在10例上下颌牙列重度拥挤的I类骨面型均角患者(男女各5例,平均年龄17.5岁)的上下颌后牙区植入自攻微种植体支抗(每例患者4枚,共40枚),即刻加载50～100g。当尖牙到位后(平均3.5个月),统计各区种植体失败数。结果上下颌后牙区即刻加载的自攻微种植体支抗的失败率差异有统计学意义。结论下颌后牙区即刻加载的自攻微种植体支抗的稳定性比上颌差。更多还原

【Abstract】 Objective To comparative stability of self-tapping MIAs(mmi-screw implant) between maxilla and mandibular after immediate loading. Methods 10 patients(5 female,5male,aberage 17.5 years old) with average facial type and heavy teeth crowd in both archs were choosed to be planted with 4 self-tapping MIAs on molar areas,immediate loading with 50~100g force.When(average 3.5 months)canines got to the proper position,the failling rates of self-tapping MIAs in different areas were analyzed.Results There are statistical difference of the failling rates of self-tapping MIAs between maxilla and mandibula. Conclusion The stability of self-tapping MIAs with immediate loading is less steady ill mandibula than in maxillary.更多还原