Category: F

  • Factitial dermatitis

    A skin irritation or injury that is self-inflicted.  

  • Four-handed dentistry

    Extensive use of a chairside dental assistant to facilitate and enhance the productivity of the dentist.  

  • Forensic dentistry

    The area of dentistry particularly related to jurisprudence; usually, the identification of unknown persons by the details of their dentition and tooth restorations.  

  • Delusion of grandeur

    An unreasonable conviction of one’s own power, importance, or wealth, accompanied by a feeling of well-being, seen in manic patients.  

  • Fixed delusion

    A delusion that remains unaltered.  

  • Functional iron deficiency

    A lack of iron significant enough to affect the development of healthy red blood cells. It may precede the appearance of measurable anemia.  

  • Filling defect

    An interruption of the contour of a body structure revealed by radiographic contrast material. It may be due to an obstruction caused by blood clots, emboli, malignancies, or extrinsic compression. A deviation seen in contrast X-rays can be due to a lesion taking up space within a hollow organ. Generally, during contrast X-rays, a substance…

  • Functional death

    Central nervous system death with vital functions being artificially supported.  

  • Fetal death

    Spontaneous demise of the fetus occurring after the 20th week of gestation. The cause is often unknown; however, fetal death often is associated with maternal infection, diabetes mellitus, fetal and placental abnormalities, and pre-eclampsia.  

  • Flow cytometer

    A device for measuring thousands of cells as they are forced one at a time through a focused light beam, usually a laser. Cells studied by this device need to be in an evenly dispersed suspension.