2016 Glossary - 12
ceramic flux n: a glass modifier that disrupts the oxygen-silica bonds and in doing so increases fluidity.
The bonds are disrupted by the addition of metallic ions, such as calcium carbonate, potassium carbonate, or sodium carbonate.
ceramic onlay n: an indirect, intracoronal restoration
involving coverage of 1 or more cusps fabricated entirely with ceramic materials and generally bonded
to natural tooth.
ceramics n: (1) relating to the science of manufacturing and use of ceramic, particularly bioceramic compounds; (2) the art of fabricating dental restorations
using ceramic alone or in combination with other
ceramist (ceramicist) n: (1) a laboratory technician who
specializes in the art and science of dental ceramics;
(2) a researcher who investigates ceramic materials
cermet n: (1) any mixture of ceramic and metal particles used as a restorative material; (2) a ceramo-metal
compound, often used as a friction-reducing coating
(ie, titanium nitride syn: ceramet)
cervix n: a narrow or constricted portion; in dentistry
it refers to the constricted region where the crown
meets the root of a tooth.
chamber, pulp n: the segment of the pulp cavity located inside the anatomic crown portion of the tooth.
chamfer n: (1) a tooth preparation line design in which
the gingival aspect and external axial surface meet at
an angle >90° but <180°; (2) a small channel or trench;
(3) the surface that results at the obtuse angle where
2 faces of a material or preparation meet; (4) an edge
that is beveled.
chamfer angle n: (1) the angle formed by the surface plane of the prepared chamfer and the vertical
component of the unprepared tooth; (2) the angle
formed by the surface plane of the restorative finish
line of an implant abutment and its long axis.
characterization n: to change by applying distinct
markings, indentations, coloration, and similar
unique methods of demarcation on a tooth or dental
prosthesis to improve the natural appearance.
characterize v: to define in a unique, distinguishing,
characterized denture base n: a denture base with
coloring that mimics the color, hues, and shades of
naturally occurring oral tissues.
cheilitis n: inflammation occurring in the lip.
cheilitis, angular n: inflammation present in the corner angles or commissures of the mouth.
cheiloplasty n: plastic surgery performed on the lip.
cheilosis n: a disorder of the lips and angles of the
mouth characterized by fissures; often associated
with a riboflavin deficiency.
chemoattractant n: a chemical or biological mediator
that causes movement of cells along a concentration
gradient to the area with the highest concentration
of the chemical.
chlorhexidine n: a bis-biguanide antiseptic agent effective in the prevention of colonization by killing or
inhibiting growth of microorganisms on surfaces of
skin, mucous membranes, and teeth.
chronic abscess n: a pus-generating infected lesion
where the immunity has confined the infection and
is in a quiescent state but still contains live bacteria.
chronic closed lock n: a clinical situation where the
temporomandibular joint has restricted motion
over a long period of time. An anterior dislocation of
the intra-articular disk causes this clinical situation.
Chronic pain is typically observed.
chronic pain n: pain marked by an extended duration
or frequent recurrence. Chronic is a Greek word referring to any situation that has been present over a
long period of time. During that period the described
pain can periodically diminish or disappear and recur
chronic periodontitis n: see under periodontitis.
cicatrix n: observed fibrous connective tissue that results from wound healing; a scar.
circumvallate papilla n: see under papilla.
citric acid n: a tricarboxylic acid that is useful as
a near-saturated solution (pH = 1.4) to detoxify
(cleanse) root surfaces that are contaminated and expose intrinsic collagen fibers in the hopes of achieving new tissue attachment.