Velloso Glauco Rodrigues, Vidigal Guaracilei Maciel, de Freitas Marcos Motta, Garcia de Brito Oldemar F, Manso Marcelo Corrêa, Groisman Mario
Oral Implantology at Estácio de Sá University.
Implant Dent. 2006 Jun;15(2):192-6. doi: 10.1097/01.id.0000223233.29454.77.
To evaluate the angulation of the maxillary sinus walls at the apical sinus region.
Using preoperative computerized tomographies of 15 patients selected for sinus lift procedures, the angulation of the maxillary sinus floor was measured drawing straight lines tangential to the mesial and lateral walls. The measurements were taken from sagittal images at specific areas (i.e., second bicuspid, first molar, and second molar).
The results showed that the second bicuspid sites have a sharper angulation than the second molar sites, and these second molar sites have a sharper angle than the first molar sites.
The sharper angle observed in the second bicuspid area can influence the feasibility of schneiderian membrane evaluation when compared to the molar areas.
评估上颌窦根尖区窦壁的角度。
使用15例选择进行上颌窦提升术患者的术前计算机断层扫描，通过绘制与近中壁和外侧壁相切的直线来测量上颌窦底的角度。测量取自特定区域（即第二双尖牙、第一磨牙和第二磨牙）的矢状位图像。
结果显示，第二双尖牙部位的角度比第二磨牙部位更尖锐，且这些第二磨牙部位的角度比第一磨牙部位更尖锐。
与磨牙区相比，在第二双尖牙区观察到的更尖锐角度可能会影响上颌窦黏膜评估的可行性。
