The test is performed in a hospital radiology department or in the health care provider's office. It is done by an x-ray technician. You may be given a medicine to make you calm before the procedure.
You will be asked to lie on your back on the x-ray table. An x-ray is taken before the contrast material is injected to check for blockages that might prevent the contrast material from entering the ducts.
A catheter (a small flexible tube) is inserted through your mouth and into the duct of the salivary gland. A special dye (contrast medium) in then injected into the duct. This allows the duct will show up on the x-ray. X-rays will be taken from many positions.
You may be given lemon juice to help you produce saliva. The x-rays are then repeated to examine the drainage of the saliva into the mouth.