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Magnification in panoramic radiography | ||
| Journal of baghdad college of dentistry | ||
| Article 1, Volume 17, Issue 3, 2005, Pages 45-47 | ||
| Author | ||
| Lamia H. AL-Nakib | ||
| Abstract | ||
| Background: It is known that the image of panoramic radiograph is larger than the structure it represents. Materials and methods: To quantify the magnification of the machine used in this study (Cranex 3+), horizontal curved wire of 150 mm. was fixed by wax on a dry skull between maxilla & mandible. Other 30 mm. long wires were fixed vertically, one in the midline & the others in the canine, premolar & molar regions bilaterally. The skull was positioned as the patient's head positioned so the area to be exposed is precisely within the zone of sharpness, the films were processed & the radiographs were viewed. Results: A comparison between real & radiographic wires length was done. The result revealed that horizontal magnification was 6.6-10%, while the vertical magnification was 26.6-30%, but the machine rotation was symmetrical. Conclusion: Carnex 3+ X-ray machine had a symmetrical rotation with 26.6-30% vertical magnification &6.6-10% horizontal magnification | ||
| Keywords | ||
| Panoramic radiology | ||
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