Fig. 2
(A) AAA diameter: the maximum caliber of the bone foramen imaged (mm); (B) Width of the lateral wall of the maxillary sinus: make a horizontal line across the center of the AAA, intersecting with the medial and lateral walls of the bone of the maxillary sinus, and the distance between the two intersections is the width (mm); (C) Distance from the upper edge of the AAA to the floor of the maxillary sinus; (D) Width of the maxillary sinus cavity in the position of the AAA: horizontal distance from the medial wall of the bone relative to the upper edge of the AAA position to the contralateral bone wall (millimeters); (E) vertical distance from the upper edge of the AAA to the floor of the maxillary sinus; (F) width of the alveolar ridge; (G) height of the alveolar ridge; (H) distance from the AAA to the top of the alveolar ridge.
