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 ?
So, the function calculated using distobuccal cusp tips of the first molars and the central incisors was the function that better described dental arch configuration.
beta] function has been shown to be an accurate representation of the human dental arches using only distobuccal cusp tips of the first molars and the central incisors.
e the perpendicular distance between the deepest cusp tip and a flat plane touching the incisal edges of the incisors and distobuccal cusp tip of most posterior teeth of the mandibular arch as shown in Fig 1.
The reference points on lateral cephalogram were: L1 (the incisal tip of mandibular central incisor), M7 (the distobuccal cusp tip of mandibular second molar) and point S (the deepest point of COS).
The second premolar cusp tip was found to be the deepest part of COS while the curve varied in depth as class II div 2 >class II div 1>class III>class I.
Bishara et al16 measured the COS as the average of the sum of the perpendicular distances to each cusp tip.
Mandibular Intercanine width (LC-C): Distance be- tween the cusp tips of right and left mandibular permanent canines.
Mandibular Interpremolar width (LP-P): Distance be- tween buccal cusp tips of right and left mandibular first premolars.
Mandibular Intermolar width (LM-M): Distance be- tween the mesiobuccal cusp tips of right and left mandibular permanent first molars.
Mandibular Interpremolar width (LP-P): Distance between buccal cusp tips of right and left mandibular permanent first premolars.
Mandibular Intermolar width (LM-M): Distance between the mesiobuccal cusp tips of right and left mandibular permanent first molars.
Maxillary Model Measurements: 1) Angle between palatal midline and a line bisecting the right mesiobuc-cal and mesiolingual cusp tips, 2) Angle between palatal midline and a line bisecting the left mesiobuccal and mesiolingual cusp tips.