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目的:对眶部骨性结构三维测量,从而为眶缺损的种植体植入提供影像解剖学参考。方法:使用mimics 10.01软件对100例颌骨形态正常者(男女各50例)头颅螺旋CT三维重建影像中眶部骨组织进行测量。结果:在眶缘区,男女骨量差异无统计学意义。眶部6点~9点区域,除6点钟位骨量相对不足外,其他区域骨量均较充足;眶面与颊面所成夹角为钝角。眶部9点~12点区域,骨深度足够,而骨厚度相对不足;10点~12点区域眶面与颊面夹角均值均为锐角。结论:眶部6~9点区域,适宜植入6~7 mm的种植体,植入方向以垂直于骨面为宜。眶部9-12点区域,种植位置宜位于眶缘内侧,种植体方向应与眶面成锐角向斜后方植入。
OBJECTIVE: To provide three-dimensional measurements of orbital bony structures and provide anatomic reference for the implantation of orbital defects. Methods: Using mimics 10.01 software, we measured 100 cases of orbital bone in 100 patients with normal jaw (50 men and women) in cranial spiral CT three-dimensional reconstruction. Results: There was no significant difference in the bone mass between men and women in the orbital margin. Orbital 6 o’clock to 9 o’clock area, except at 6 o’clock, the relative lack of bone mass, other areas are more adequate bone mass; orbital surface and buccal angle formed by the obtuse angle. The orbital 9 o’clock to 12 o’clock area, the bone depth is sufficient, and the bone thickness is relatively insufficient; 10 o’clock to 12 o’clock area of the orbital surface and buccal angle are mean acute angle. Conclusion: The 6 ~ 9 o’clock region of the orbit is suitable for implanting 6-7 mm implants, and the direction of implantation is perpendicular to the bone surface. Orbital 9-12 points, the planting position should be located in the medial orbital margin, implant direction and the orbital plane acute oblique posterior implantation.