(n.) A triangular protection from the intrados of an arch, or from an inner curve of tracery.
(n.) The beginning or first entrance of any house in the calculations of nativities, etc.
(n.) The point or horn of the crescent moon or other crescent-shaped luminary.
(n.) A multiple point of a curve at which two or more branches of the curve have a common tangent.
(n.) A prominence or point, especially on the crown of a tooth.
(n.) A sharp and rigid point.
(v. t.) To furnish with a cusp or cusps.
Example Sentences:
(1) But at least one customer signalled that America's gun lobby might be on the cusp of a moment of introspection.
(2) Multiple determination of size, shape, and diameter of the left atrium were made during the control state and under conditions of varied ventricular outflow resistance in intact anesthetized dogs with markers chronically attached to the mitral annulus and the valve cusps.
(3) The edge of the valve leaflet and the other 2 cusps were intact.
(4) However, the height of the hypoconid, which was the highest in the lower molar cusps, showed almost the same mean value as the height of the upper three principal cusps, indicating that the height of the main functional cusp, in both upper and lower first molars, was almost the same.
(5) In lower second deciduous molars, the buccal margin of the cavity was positioned 1.7 mm medially to the summit of the distobuccal cusp and 1.2-1.3 mm medially to the summits of the other buccal cusps.
(6) A high origin of the right coronary artery or location of the left coronary artery adjacent to a pulmonary cusp or branch may complicate the tunnel-type repair.
(7) In the remainder a wide spectrum of abnormalities was found such as prolapse of the mitral valve (in 13.6%), bicuspid aortal valve with a medium regurgitation (4.5%), hypoplasia of the coronary cusp of the aortal valve (4.5%), dilatation of the ascending aorta with a residual significant stenosis at the site after operation of coarctation of the thoracic aorta (4.5%), subaortal defect of the interventricular septum (4.5%) and slight left ventricular hypertrophy in patients with arterial hypertension (9.1%).
(8) The ruptures and calcifications of the cusps were most commonly observed in commissure.
(9) The commonest cause of failure in young patients was calcification, while in older patients it was cusp rupture.
(10) The results indicate that the tongue-to-teeth contact area of each sound differ from the others, however, it's range is confined within cervical half of lingual surface of incisors and lingual cusps of molars.
(11) In the light of experience acquired in our Echocardiography Laboratory, we recommend, in accordance with data from the literature, the exclusive use of pulsed Doppler and measurement of valve orifices by two-dimensional imaging at the point of insertion of the aortic and sigmoid cusps as well as at the mitral ring.
(12) In 9 of 21 rats a fair or good result was observed, although it did not seem possible to create a fully competent valve with only one cusp blade in the 1.5-mm-diam caval veins.
(13) He underwent single cusp replacement in January 1967.
(14) Then the graft was cut longitudinally on the side of the non-coronary cusp so as to make operative procedure easier.
(15) Destruction of the cusps was seen in three cases and calcification of the cusps developed in three cases.
(16) In a small number of cases, the amount and type of cuspal movement and the degree of dye penetration was variable, depending on cavity design and the composite used, but generally cusp movement was unaffected by variation in cavity outline.
(17) Cardiac ultrasonography demonstrated multiple, central diastolic aortic valve cusp echoes consistent with a thickened, calcified, tricuspid aortic valve.
(18) In conclusion, transesophageal echocardiography and color flow Doppler are superior to transthoracic imaging in estimating bioprosthetic mitral, but not aortic regurgitation, in differentiating valvular from paravalvular regurgitation, and in demonstrating thickened valves due to cusp degeneration.
(19) The valve was composed of 4 cusps of different size and shape.
(20) In conclusion, TAV occurred more frequently at the noncoronary cusp than at the right or left coronary cusp.
Premolar
Definition:
(a.) Situated in front of the molar teeth.
(n.) An anterior molar tooth which has replaced a deciduous molar. See Tooth.
Example Sentences:
(1) Maxillary and mandibular incisors and premolars of three rhesus monkeys were used.
(2) Erosion was observed on all teeth, but was commonest on the upper incisors, canines and premolars, and severest on palatal surfaces.
(3) Sound (n = 28) and carious (n = 123) approximal surfaces of extracted premolars and molars were radiographed.
(4) Four weeks after replantation, a more than threefold increase in PBF was measured in premolars with two roots, while PBF in premolars with one root and incisors was consistently reduced to an average of 40% of the controls.
(5) Molarization and premolarization of anterior teeth have never been reported before.
(6) The mandible does tend to rotate in a counterclockwise manner following enucleation of four first premolars without appliance therapy.
(7) Eight cases were studied separately, since three showed bilateral congenital absence of the second premolar, three showed unilateral congenital absence of the second premolar on the affected side, and two had the first permanent molar extracted.
(8) A "sweep" bend was incorporated to avoid unwanted side effects at the second premolar.
(9) Furthermore, agenesis of incisors, canines and premolars ranges from 0.4% in controls to 1.3% in propositi having reduced ULI and 5.0% in propositi with two missing ULI.
(10) The aberrant gland appeared on a panoramic radiograph as a radiolucency judged to be a periapical lesion on the right mandibular second premolar.
(11) All premolars were extracted after 1 calendar month.
(12) The purpose of the present radiologic study was to establish prevalence and distribution of pulp stones in mandibular premolars and molars in skulls of Norwegian Samis.
(13) One hundred and eighty seven mandibular premolars taken from a Turkish population were examined in this study.
(14) Forty molar and premolar teeth had non-retentive cavities prepared and restored with amalgam using (1) copal varnish (control), (2) a pin, (3) Amalgambond or (4) Panavia-Ex.
(15) Bone biopsies should be taken in either the premolar or the molar region of mandibular bodies.
(16) An unusual case of Stafne's bone cavity which presented in the canine-premolar region of the mandible is presented.
(17) Spaces needing prosthetic closure are transferred to more posterior regions of the dental arch, usually in the premolar region.
(18) In a second series of analyses, the mean lead concentrations of both dental hard tissues of premolars and permanent molars of young individuals from Strasbourg, rural Alsace, and Mexico City were compared.
(19) Autotransplantation of mandibular first premolars to the incisor region is suggested as an approach in selected cases.
(20) The samples were collected from both an intact fissure and a fissure with brown-stained defective enamel surface of the premolars of the lower jaw.