Goal of x ray• The goal of dental radiography is to obtain useful diagnostic information if it not necessary dont do I t.
Ordering Dental Radiographs• Dental radiographs must only be performed by dentists or other legally qualified.
Operator Location• The operator of the dental unit must stand at least six feet from the useful beam or behind a protective barrier.• If a protective barrier is used, it must have a viewing window to allow the operator to see the patient.
Filtration Requirements• The amount of filtration required varies with the operating range of the x-ray unit. For example:• For 51 to 70 kVp units - 1.5 mm Al• Units above 70 kVp - 2.5 mmAl
( Thyroid Shield (Collar• The primary dental beam may pass near or occasionally through the thyroid gland. A thyroid shield may reduce the dose to the gland without interferingwith obtaining a diagnostic image.
Lead aprons• Patients should be shielded with lead aprons and These shields should have at least 0.5 mm of lead equivalent.• Do not fold or bend aprons. Hang aprons to prevent damage and loss of protective qualities.
Cones• The ADA discourages the use of short, closed, pointed cones because of the increased scatter radiation close to the face and adjacent areas of the patient’s body.