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  • Festoon

    Contour of the soft tissues covering the roots of the teeth that tends to follow the cervical lines. Specifically, in prosthodontics, a carving in the base material of a denture that simulates the contours of the natural tissues being replaced by the denture. A carving that resembles scalloping or festooning in the base material of…

  • Ferrule length

    The occlusal‐apical height of tooth structure apical to a foundation restoration that is engaged by a full coverage restoration.  

  • 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.  

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