Category: F

  • Ferrule

    A metal band or ring used to fit the root or crown of a tooth. The ferrule is to be on sound tooth structure and ideally 2 mm or more in height. Any short tube or bushing for making a tight joint. A metal or rubber cap or ring that strengthens and protects the lower…

  • Fenestration

    A hole or opening in a body part, for example, a hole in alveolar bone or the soft tissue that covers the root of a tooth. With translucent areas, like windows. A surgical operation to relieve deafness by making a small opening in the inner ear. The provision of a hole in a scleral contact…

  • Fenestrate

    To puncture or perforate with one or several openings. With open or translucent areas, like windows. Pierced with one or more large holes.  

  • Feldspar

    Any one of a group of minerals, principally aluminosilicate of sodium, potassium, calcium, or barium, that are essential constituents of nearly all crystalline rocks. A crystalline mineral of aluminum silicate with sodium, potassium, barium, and/or calcium; a major constituent of some dental porcelains.  

  • Feldkamp back projection

    Standard method algorithm used with most CBCT for constructing slice sets.  

  • Feature locating object (FLO)

    A general term used to describe a digital implant physical marker used in laboratory scanning, providing for the digital capture of the implant fixture/platform position.  

  • FEA (abbrev)

    Finite element analysis.  

  • FDBA (abbrev)

    Freeze‐dried bone allograft.  

  • Fatigue fracture (failure)

    Structural failure caused by repetitive stresses, which cause a slowly propagating crack to cross the material.  

  • Fatigue failure

    A structural failure caused by multiple loading episodes when all loads lie below the structure’s ultimate strength. Typically, such failures occur after multiple loading episodes.