TY - JOUR ID - TI - Magnification in panoramic radiography AU - Lamia H. AL-Nakib لمياء حامد النقيب PY - 2005 VL - 17 IS - 3 SP - 45 EP - 47 JO - Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد SN - 18171869 23115270 AB - 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

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