The high-temperature performance of iron ore fines is an important factor in optimizing ore blending in sintering. However, the application of linear regression
目的 探讨双侧唇腭裂病例牙槽突植骨的远期疗效.方法 55例双侧完全性唇腭裂患者,双侧牙槽突植骨手术在GOS儿童医院(Great Ormond Street Hospital for Children)完成,植骨部位共110个.植骨材料选用髂骨松质骨,以植骨手术进行时尖牙的萌出情况将裂隙分为2组.植骨前后拍摄上颌前部咬合片,手术后观察时间为1至10年.采用Bergland标准评价植骨部位的牙槽骨高度