Imaging Sci Dent.  2013 Jun;43(2):63-69. 10.5624/isd.2013.43.2.63.

Patient radiation dose and protection from cone-beam computed tomography

• Li G

• KMID: 1974431
• DOI: http://doi.org/10.5624/isd.2013.43.2.63

Abstract

After over one decade development, cone beam computed tomography (CBCT) has been widely accepted for clinical application in almost every field of dentistry. Meanwhile, the radiation dose of CBCT to patient has also caused broad concern. According to the literature, the effective radiation doses of CBCTs in nowadays market fall into a considerably wide range that is from 19 microSv to 1073 microSv and closely related to the imaging detector, field of view, and voxel sizes used for scanning. To deeply understand the potential risk from CBCT, this report also reviewed the effective doses from literatures on intra-oral radiograph, panoramic radiograph, lateral and posteroanterior cephalometric radiograph, multi-slice CT, and so on. The protection effect of thyroid collar and leaded glasses were also reviewed.

Keyword

Radiation Dosage; Cone-Beam Computed Tomography; Tomography, Spiral Computed; Radiation Protection

MeSH Terms

Cone-Beam Computed Tomography
Dentistry
Eyeglasses
Glass
Humans
Radiation Dosage
Radiation Protection
Thyroid Gland
Tomography, Spiral Computed

Figure

• 

  Fig. 1 The image of one anthropomorphic phantom.

• 

  Fig. 2 The example image of thermoluminescent dosimeters (TLDs).

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