| EFFECTIVE DOSE FROM CONE BEAM CT FOR IMAGING OF MESIODENS |
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Won-Jeong Han1, Jong-Soo Kim2 |
1Department of Oral and Maxillofacial Radiology,Dental College, Dankook University
2Department of Pediatric Dentistry, Dental College, Dankook University |
| 상악 정중과잉치 진단을 위한 cone beam CT의 유효선량 |
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한원정1, 김종수2 |
1단국대학교 치과대학 구강악안면방사선학교실
2단국대학교 치과대학 소아치과학교실 |
Correspondence:
Won-Jeong Han, Tel: 041-550-1923, Email: wjhan@dankook.ac.kr
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Received: 13 August 2012 • Accepted: 14 August 2012 |
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| Abstract |
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 μSv. Conclusion : Cone-beam CT, although providing additional diagnostic benefits, exposes patients to higher
levels of radiation than conventional periapical and panoramic radiography. |
| Key Words:
Tooth, Supernumerary, Cone-Beam Computed Tomography, Radiation Dosage |
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