Fig. 2From: A study on the association between accessory maxillary ostium and maxillary sinus mucosal thickening using cone beam computed tomographyCoronal CBCT section showing method used to determine the location of AMO in vertical dimension (C). The distance C is obtained by measuring the distance between 2 horizontal lines A1-A (passing through the most inferior point of the AMO) and B1-B (passing through the most inferior point on the floor of the maxillary sinus)Back to article page