Objectives: To perform a descriptive radiographic study of stitched images of the midface obtained by Promax 3D Cone Beam Computed Tomography (CBCT) scanner in order to assess its potential uses. Methods: CBCT images of the maxillary area obtained by horizontal stitching of three full field of views (FOV) were selected retrospectively from the archives. Results: CBCT images from 47 subjects were retrieved. Of these, 25 structures of paranasal sinuses and 45 of the cranial fossa were bilaterally examined. The osteomeatal unit was defined on 84 sides. Superior attachments of the uncinate process were displayed on 33 sides. Fovea ethmoidalis was observed only on 10 sides. Ethmoid cells were visible on all scans. The frontal bone, the frontal sinus, crista galli and the cribriform plate were cut on 70, 64, 72 and 62 sides respectively. The greater wings were always observable. The lesser wing, anterior clinoid process, dorsum sellae, tuberculum sellae and optic canal were cut on 44, 40, 56, 55 and 40 sides, respectively. The squamous temporal bone was always visible except when it was fused with the parietal and the mastoid bone. The petrous apex was relatively well-defined on 19 sides. The relative foramina and carotid canal were observed in all of the images. Conclusions: Stitching images may help in the comprehensive evaluation of the maxillofacial region of patients with any pathology where involvement of the midface is suspected.

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