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KMID : 0358920120390030273
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Journal of the Korean Academy of Pedodontics
2012 Volume.39 No. 3 p.273 ~ p.279
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EFFECTIVE DOSE FROM CONE BEAM CT FOR IMAGING OF MESIODENS
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Han Won-Jeong
Kim Jong-Soo
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Abstract
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Purpose: This study was aimed to calculate effective dose from cone beam CT and compare effective dose from periapical and panoramic radiography for mesiodens.
Materials and Methods: Upper anteiror periapical, panoramic radiography and cone-beam CT were taken for diagnosis of mesiodens. The effective dose were calculated by using an anthropomorphic phantom loaded with thermoluminescent dosimeters at the 23 sites related to sensitive organs.
Results: The highest absorbed doses were received by the mandibular body, parotid gland and cheek from periapical, panoramic and cone-beam CT, respectively. The effective doses for periapical, panoramic radiography and cone-beam CT measured 2, 18 and 48.
Conclusion: Cone-beam CT, although providing additional diagnostic benefits, exposes patients to higher levels of radiation than conventional periapical and panoramic radiography.
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KEYWORD
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Tooth, Supernumerary, Cone-Beam Computed Tomography, Radiation Dosage
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