How to Choose and Use the CBCT

An,  Chang-Hyeon

doi:2014.52.3.132

J Korean Dent Assoc > Volume 52(3); 2014 > Article

The Journal of The Korean Dental Association 2014;52(3):132-138.
DOI: https://doi.org/10.22974/jkda.2014.52.3.001 Published online March 31, 2014.

임상가를 위한 특집 1 - CBCT의 선택과 처방

안창현

경북대학교 치의학전문대학원 구강악안면방사선학교실

How to Choose and Use the CBCT

Chang-Hyeon An

Department of Oral and Maxillofacial Radiology, School of Dentistry, Kyungpook National University

Abstract

The emergence of Cone Beam Computed Tomography(CBCT) in the late 1990s represented an innovative advancement in the field of dental and maxillofacial radiology because it greatly reduced the radiation exposure to patients and offered 3D images easily. The 3D information generated by this technique brings the potential of improved diagnosis and treatment planning for a wide range of clinical applications in dentistry. The use of CBCT includes diagnosis and surgical assessment of the orofacial hard tissue lesions, dental implant treatment planning and postoperative evaluation, TMJ assessment, diagnosis of craniofacial fracture, orthodontics, endodontics, and so on. All CBCT examinations should be justified on an individualized needs. The clinical benefits to the patient for each CBCT scan must outweigh the potential risks associated with exposure to ionizing radiation. CBCT scans should be taken with initially obtained medical and dental histories of patients and a close clinical examination. CBCT should be considered as an imaging alternative of other conventional radiography in cases where the anatomical structures of interest may not be seen. The smallest possible field of view(FOV) and the lowest setting of tube current and scan time should be chosen, and the entire images scanned should be interpreted by a qualified expert.

Key Words: Cone Beam Computed Tomography(CBCT);Dental Implant;Radiation Exposure;Field of View(FOV);