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目的:探讨上颌窦向牙槽突气化的不同分型之间上颌窦实际外科深度的差异。方法:对100例患者的鼻窦CT结果进行观察分析,基于上颌窦底与硬腭的解剖关系,将上颌窦向牙槽突气化程度分型,并对上颌窦外科操作深度进行测量。结果:上颌窦外科实际操作的深度在3种类型的牙槽突气化中存在显著差异,Ⅲ型气化的上颌窦实际深度为(32.27±3.48)mm,深于Ⅱ型气化(28.35±3.45)mm及Ⅰ型气化(20.73±3.09)mm,差异均有统计学意义(均P<0.05)。此外,Ⅱ型气化也显著深于Ⅰ型气化(P<0.05)。结论:上颌窦向牙槽突的气化程度决定了上颌窦中鼻道自然口扩大后上颌窦的实际深度,可以作为内镜上颌窦手术入路选择的参考。
Objective: To explore the difference of actual surgical depth of maxillary sinus between different types of maxillary sinus with alveolar gasification. Methods: The CT findings of 100 cases of sinuses were observed and analyzed. Based on the anatomic relationship between the floor of the maxillary sinus and the palate, the maxillary sinus was differentiated to the extent of alveolar gasification and the depth of surgical treatment of the maxillary sinus was measured. Results: The actual operation depth of maxillary sinus surgery was significantly different among the three types of alveolar gasification. The depth of type Ⅲ gasification maxillary sinus was (32.27 ± 3.48) mm, which was deeper than that of type Ⅱ gasification (28.35 ± 3.45) mm and type Ⅰ gasification (20.73 ± 3.09) mm, the difference was statistically significant (all P <0.05). In addition, type II gasification was also significantly deeper than type I gasification (P <0.05). Conclusion: The degree of maxillary sinus gasification to the alveolar process determines the actual depth of the maxillary sinus after maxillary sinus natural orifice enlargement can be used as a reference for choice of surgical approach to endoscopic maxillary sinus.