![]() Radiographic training requirements for dental office personnel frequently differ from and are less rigorous than those for medical personnel who take medical X-rays. Dental office design and radiation shielding.Inspection and testing for the facility, X-ray machine, radiation monitoring equipment and radiograph processing equipment.The radiation protection program in your state may provide specific requirements for: State laws and regulations set specific requirements for the use of ionizing radiation, including X-rays. tract radiography (including fluoroscopy) Effective Dose Exposures from Medical Examinations and Procedures 7-9 Type Dental radiographs account for approximately 2.1 to 2.5 percent of the effective dose received from medical radiographs and fluoroscopies (see Table 2). 5 About half of the man-made radiation exposure is related to computed tomographic (CT) scanning. is 6.2 millisieverts (mSv) per year, with about half of this dose (i.e., 3.1 mSv) from natural sources (e.g., soil, radon) and about 3.1 mSv from man-made sources. The National Council on Radiation Protection and Measurements (NCRP) has estimated that the mean effective radiation dose from all sources in the U.S. ![]() Radiation exposure associated with dentistry represents a minor contribution to the total exposure from all sources. Maxillofacial CBCT with large field of viewĪbbreviations: CBCT: cone-beam computed tomography PSP: photo-stimulable phosphor With PSP storage or F-speed film and round collimationīite wing (4 images) with PSP storage or F-speed film and rectangular collimationĭentoalveolar CBCT small and medium field of view With PSP storage or F-speed film and rectangular collimation Effective Dose Exposures from Medical Examinations and Procedures 3, 4 Type of Exposure 3 Effective radiation doses for dental radiographic examinations are listed in Table 1. Effective dose as a unit of measurement was devised by the International Commission on Radiological Protection in 1990, and the method of calculation was updated in 2007. Radiation dosage is expressed as effective dose, a term applied to the weighted sum of doses to tissues that are sensitive to radiation. The ADA encourages dentists and patients to discuss dental treatment recommendations, including the need for X-rays, in order to make informed decisions together. the doses received by patients and personnel are kept well below the allowable limits.necessary exposures are kept as low as reasonably achievable (i.e., ALARA) and.all X-ray exposures are justified in relation to their benefits.This means that there is no “one size fits all” when it comes to the interval between dental X-rays. The “ALARA” principle, a phrase coined 1973 by the International Commission on Radiologic Protection that stands for “As Low as Reasonably Achievable,” means taking precautions 1 to help ensure that: How often X-rays, or radiographs, should be taken depends on specific factors such as an individual’s current oral health, age, risk for disease and any signs or symptoms of oral disease. Dentists use X-rays to help diagnose damage and disease that is not visible during a clinical dental examination.
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