cusp


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cusp

 [kusp]
a pointed or rounded projection, such as on the crown of a tooth, or a segment of a cardiac valve. See also valvula.
Carabelli cusp an accessory fifth cusp on the lingual surface of many maxillary first molars; it may be unilateral or bilateral and varies in size from person to person.
semilunar cusp any of the semilunar segments of the aortic valve (having posterior, right, and left cusps) or the pulmonary valve (having anterior, right, and left cusps).

cusp

(kŭsp), [TA]
1. In dentistry, a conic elevation arising on the surface of a tooth from an independent calcification center.
See also: dental tubercle.
2. A leaflet of one of the heart's valves.
Synonym(s): cuspis [TA]
[L. cuspis, point]

cusp

(kusp) a pointed or rounded projection, such as on the crown of a tooth, or one of the triangular segments of a cardiac valve.
Enlarge picture
Cusps of the atrioventricular (tricuspid) valve.

semilunar cusp  any of the semilunar segments of the aortic valve (having posterior, right, and left cusps) or the pulmonary valve (having anterior, right, and left cusps).

cusp

(kŭsp)
n.
Anatomy
a. A pointed or rounded projection on the chewing surface of a tooth.
b. A triangular fold or flap of a heart valve.

cusp

Etymology: L, cuspis, point
1 a sharp projection or a rounded eminence that rises from the chewing surface of a tooth, such as the two pyramidal cusps that arise from the premolars.
2 any one of the small flaps on the valves of the heart, as the ventral, dorsal, and medial cusps of the right atrioventricular valve.

cusp

A rigid, sharp point, especially on a leaf Cardiology One of the triangular segments of the pulmonic or aortic valve which opens and closes with the flow of blood

cusp

(kŭsp) [TA]
1. dentistry A conic elevation arising on the surface of a tooth from an independent calcification center.
2. A leaflet of a cardiac valve.
Synonym(s): cuspis [TA] .
[L. cuspis, point]

cusp

A projecting point.

cusp

one of a series of projections on the biting surface of a molar tooth in mammals.

cusp

(kŭsp) [TA]
In dentistry, a conic elevation arising on the surface of a tooth from an independent calcification center.
See also: dental tubercle
Synonym(s): cuspis [TA] .
[L. cuspis, point]

cusp (kusp),

n a notably pointed or rounded eminence on or near the masticating surface of a tooth.
cusp, angle,
cusp-fossa relations
n.pl the organic relations between a stamp cusp and its fossa.
cusp height,
n the shortest distance between the deepest part of the central fossa of a posterior tooth and a line connecting the points of the cusps of the tooth.
cusp, shoeing,
cusp, talon,
n an extra well-defined cusp that may be found on the lingual surfaces of the anterior teeth.
cusp tips,
n the points on the occlusal surface of the molars, premolars, or canines that are used for tearing or chewing.

cusp

a pointed or rounded projection, such as on the crown of a tooth, or a segment of a cardiac valve.

semilunar cusp
any of the semilunar segments of the aortic valve or the pulmonary valve.
References in periodicals archive ?
The morphologic features associated with structural valve deterioration (SVD) included collagen degeneration, calcification, prolapse, increased cusp stiffness/cusp immobilization, fluid insudation, fibrosis and cusp tears (Figures 2 through 4).
Platnick and Shadab (1974a) state that trachelines are characterised by the complete absence of leg spines and the presence, in males at least, of ventral cusps on the tibia, metatarsus and tarsus of leg I and II.
Clinical problems noted with talon cusps, both in the primary and in the permanent dentition, are similar and include: attriation, breast-feeding difficulties, compromised aesthetics, occlusal interference, cusp fracture, interference with tongue space, irritation of the tongue during speech and mastication, displacement of the affected tooth, misinterpretation of radiographs of talon teeth before eruption, caries susceptibility, periodontal problems and temporomandibular joint pain.
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Teeth of lateral and posterior row groups are asymmetrical, lower crowned, and with a smaller, distally inclined cusp.
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