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

(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

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]
References in periodicals archive ?
Interobserver Error Involved In Independent Attempts To Measure Cusp Base Areas Of Pan M L S.
We first consider the case where [GAMMA] has no elliptic point nor irregular cusp. In this case [GAMMA] acts on D freely and [pi] has only singular fibres of type [I.sub.n] over the regular cusps ([3] p.
The tooth crown includes three main cusps sigmoidally incurved, with a distinct lateral carina.
Based on the present findings, the clinicians should be advised to select a light-curing unit tip with relatively small diameter and make the light-curing unit tip positioned perpendicular to the tooth-inclined surfaces when light cure the resin cement through zirconia restorations with a high cusp inclination.
Caption: Left: During intensive observations in 1800-01, Johann Schroter found that the southern cusp of Mercury (at bottom) occasionally appeared blunted.
Aortic valve was not addressed in these patients because they had only cusp prolapse without AR.
The additional cusp on the palatal surface was diagnosed as Type 1 Talon because it extended to more than half the distance from the cementoenamel junction to the incisal edge [1].
Keywords: Crown dimensions, Functional cusps, Iwanson guage.
The length of right atrioventricular valve and left cusp of left atrioventricular valve was more in control group A3 than that of experimental group B3; however, this difference was not statistically significant.
The position of the ostia with reference to the sinutubular [ST] ridge and the upper margin of cusps.
The estimation of genetic mixture was determined based on frequency of shovel-shaped incisor and Carabelli's cusp, using the Berstein method and assuming a population of mixed Amerindian and Caucasian origin (Cavalli-Sforza & Bodmer).
The talon is actually an expanded posterior accessory cusp with cingulum.