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284 PATHOLOGY OF THE HAED TISSUES OF THE TEETH.
Calcification lines of Betzius. The accretion lines in the enamel were first
described by Retzius. See Lines of Accretion.
Calculus. The calcium salts of the oral secretions deposited upon the exposed
parts of the teeth and parts of roots denuded of their membranes; as, salivary
calculus and serumal calculus. A common medical term for stone, as "gall stone,"
renal calculus, etc.
Canal. See Boot Canal.
Capping. A covering, as with a cap. A term applied to the operation of placing
a covering over an exposure of the pulp of a tooth.
Cables. Latin, caries. Only one form of the noun is used in English ; it has
no plural. The word was imperfect in its inflections in the Latin.
Rottenness, moldiness, decay, as of wood or timber. Anthon.
{Med.) Ulceration of bone; a process in which bone disintegrates and is car-
ried away piecemeal, as distinguished from necrosis in which it dies in masses.
Webster.
In dentistry: Decay of the teeth, in which cavities are formed in them by
gradual decomposition. The only change of the form in the use of the word in
English is the adjective carious, as a carious tooth. See Decay.
Cabiocs. A condition of tissue like enamel or dentin, or, of a tooth, affected
with dental caries. In medicine it refers to a condition of suppurative disintegration
of bone.
Cataphoeesis. Introduction of medicine into the 'tissues through the unbroken
skin, or the tubuli of the dentin of a tooth, by means of an electric current.
Cavities, buccal. See Buccal Cavities.
Cavities, lengual. See Lingual Cavities.
Cavities, occlusal. See Occlusal Cavities.
Cavities, pit. See Pit Cavities.
Cavities, proximal. See Proximal Cavities.
Cavities, bites fob naming. See Bules for Naming Cavities.
Cavities, bules fob naming angles of. See Bules for Naming Angles of
Cavities.
Cavities, smooth- subface. See Smooth-surface Cavities.
Cavity. An opening in any substance which has but one outlet or is entirely
closed. Any opening into a tooth formed by caries or artificially made.
Cavity, complex. A cavity involving two or more surfaces of a tooth, as a
disto-occlusal cavity.
Cavity nomenclature. In dentistry, a system of nomenclature applied to cav-
ities in teeth. Under this term is included all of the names of cavities, names of
cavity walls, of angles of cavities and the terms of cavity description, together with
the rules of their use.
Cavity preparation. Those operations necessary in forming cavities in teeth
for the reception of fillings.
Cavity walls, rules for naming. See Bules for Naming Cavity Walls.
Cavo-surface angle. The angle formed by the junction of the cavity wall and
the surface of the tooth. Used particularly in indicating the form to be given this
angle by beveling or otherwise, in any particular part of the line of the enamel mar-
gin. See Figure 8, c s, Vol. 2.