Effects of second premolar extractions on third molar angulations 正畸拔除第二前磨牙后第三磨牙倾斜度的变化
The Effect of Straight Wire Appliances on Presetting Angles on Crown Angulations 直丝弓矫治器对牙根轴倾斜度的影响
Conclusions: Abducens nerve is easy to be injured for the forming of three different angulations during its courses, and its complicated anatomic relationship with blood vessel, nerves, ligaments and bones. 结论:①展神经行程中的3个转角,以及与血管、神经、韧带、骨等复杂的解剖关系,使其脆弱而易于损伤;
Changes in third molar angulations from pretreatment to posttreatment for two groups were compared by Mann-Whitney U-test. 用U检验来比较两组患者第三磨牙倾斜度在治疗前后的变化。
Abducens nerve exhibited three different angulations during its course from the external side of brainstem to the superior orbital fissure, located at the dural entrance porus, the petrous apex and the lateral wall of the cavernous segment of ICA respectively. 展神经颅内段在行程中形成3个转角,分别位于脑膜入口处、岩尖及颈内动脉(ICA)的外侧面;