두부위치에 따른 안면골의 파노라마방사선사진상 = PANORAMIC RADIOGRAPH OF THE FACIAL BONES ACCORDING TO HEAD POSITION

다국어 초록 (Multilingual Abstract)

The author has evaluated the panoramic image clarity of the midfacial anatomic structures in dry skull according to the skull position. The radiopaque markers were attached to the anatomic structures: infraorbial rim, upper and lower borders of zygomatic arch, pterygomaxillary fissure, lateral pterygoid plate, pyriform aperture of nasal cavity, lateral wall of maxilla. orbital floor, infraorbital foramen, and nasal floor. Position of the skull were divided into four groups. standard, 25mm forward, chin-down, chin-up position.
The results were as follows:
1. The pynform aperture of nasal cavity, lateral wall of the maxilla, orbital floor, infraobital foramen and nasal floor did not cast any discernible image.
2. Nearly all images of midfacial structures were blurred in the chin-up position.
3. The forward position provided good visualization of the maxillary sinus.
4. The chin-down position provided good visualization of the zygomatic arch, pterygomaxillary fissue, and lateral pterygoid plate.