上颌窦提升术中上颌窦解剖生理及病理的 CBCT 探讨

目的:探讨上颌窦生理及病理性CBCT影像表现,为上颌窦提升术解剖定位和操作入路提供参考依据。方法:收集涉及上颌窦的CBCT资料,分析上颌窦解剖特征及病变。结果:1.上颌窦解剖结构位置及其比邻关系复杂;2.影响上颌窦提升术的解剖因素有生理及病理性两种:生理性如上颌窦内的分隔,上颌窦外侧壁的厚度,窦壁上存在的血管影像的粗细,病理性如窦腔内黏膜的增厚,上颌窦内的黏液囊肿,上颌窦内的大量积液等等。结论:CBCT能够准确地显示完整的上颌窦影像,利用CBCT确定解剖定位标志,确定上颌窦提升手术路径和方式,更符合安全、准确、微创的口腔种植理念。

Role of cone-beam CT on anatomic physiological and pathological maxillary sinus for sinus floor elevation

Objective: To explore the appearance of physiological and pathological maxillary sinus in Cone-beam CT(CBCT) and provide visual mark points and safe surgical planes for sinus floor elevation in dental implant.Methods: Collect and analysis anatomic characteristics and lesions of maxillary sinus of patients from hospital of West China required for sinus floor elevation in CBCT.Results: 1.The maxillary sinus has a complicated relationship between anatomic structure and position.2.Physiological and pathological factors are two predominant influences for sinus floor elevation in dental implant.Physiological factors include antral septa,bone thickness of the maxillary sinus wall,size of the blood vessels of wall;pathological factors show mucosal thickening,polypoid lesions,and large effusion.Conclusions: Sinus floor elevation in the right space by use of anatomic mark point in CBCT which could be able to accurately display the complete image of the maxillary sinus,is safer and more accurate,more minimally invasive.