目的：评价横腭杆(TPA)在矢状及垂直方向的支抗作用。
Objective: To evaluate the sagittal and vertical anchorage of transpalatal arch (TPA).
病变最常累及上矢状窦和横窦。
The superior sagittal sinus and transverse sinus were most frequently involved.
报道了岩下窦的矢状段、横段和垂直段的形态、大小和属支。
The features, size and tributaries of the sagittal transverse and vertical portion of the inferior petrosal sinus were described.
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