2016 Glossary - 26
ment. It attaches to the body of the dental implant
with screws, thread/screw interfacing, and a male/
female Morse taper fit. The purpose of an abutment
is to support and/or retain a fixed or removable
dental prosthesis or a maxillofacial prosthesis. The
dental implant abutment may be for interim (provisional) or definitive use. Descriptions of the dental
implant abutment are based on number of pieces
(1 piece joined to implant body, 2 piece, or 3 piece);
fabrication technique (stock, stock-adjusted, or custom); angulation (straight or angled), and material
that it is made of (titanium, titanium alloy, gold, or
endosteal dental implant abutment element n: a
dental implant component used to attach the dental implant body to the prosthesis or the prosthetic
endotoxin n: a heat-stable, lipid polysaccharide complex found in the cell wall of many microorganisms
(mostly gram negative) known to contribute to periodontitis. It can be cytotoxic or pyogenic and has
been shown to promote inflammation. In contrast
to an exotoxin, an endotoxin remains part of the
microorganism cell wall and is not released into the
enostosis n: denotes a concentration of mature compact (cortical) bone within the cancellous bone
(spongiosa) and can be referred to as condensing
osteitis. This benign lesion may be located anywhere
in the skeleton but has a predilection for the long
bones and pelvis. It is probably congenital in nature
and suggests failure of resorption during endochondral ossification.
entrance port n: the area on the surface of a patient
where a radiation beam is incident.
enucleate v: to remove an organ or lesion in its entirety without rupture. Term often used to describe the
removal of a benign odontogenic cyst from the jaws.
epinephrine n: a catecholamine neurohormone produced by the adrenal medulla and secreted into the
blood supply, whereupon it is circulated throughout
the body and may stimulate receptors that initiate
sympathomimetic effects; used in local anesthetic
solutions for its activation of alpha receptors, which
epithelial cuff n: a term that describes the intimate
relationship between the gingival mucosa and the
dental implant. The term suggests a lack of true biochemical connection or attachment between the
implant and mucosa.
epithelialization (epithelization) n: (1) the growth of
epithelium over connective tissue during the healing
process; (2) the process, either pathologic or part of
normal healing, whereby an area of the oral cavity is
covered by or converted to epithelium.
epithelium n: anatomy term used to describe the surface layer or lining of an organ. In the mouth it is used
to describe the mucosal tissue serving as the lining of
the intraoral surfaces.
epithelium, oral n: the tissue serving as the lining of
the intraoral surfaces. The junctional form is nonkeratinized, is single or multiple layered, and adheres to the tooth surface at the base of the gingival
crevice. The epithelium in the oral cavity is either
keratinized or nonkeratinized depending on its location.
eposteal dental implant n: a dental implant that obtains its principal support through setting on top of
the edentulous areas of the alveolar bone; Supplementary retaining screws that enter directly into
the bone for the purposes of securing this implant
framework to the alveolar bone are referred to as an
endosteal dental implant component. If the eposteal
framework should become submerged and covered
by the alveolar bone, then it may be described as
having become an endosteal dental implant; an
eposteal dental implant's support system is also
known as the implant frame, implant framework, or
epoxy resin n: a strong, yet flexible, chemically resistant, dimensionally constant resin of epoxy polymers;
frequently used as a denture base material in dentistry.
epoxy resin die n: a reproduction or model produced
with epoxy resin.