What's the difference between bicuspid and premolar?

Bicuspid


Definition:

  • (a.) Alt. of Bicuspidate
  • (n.) One of the two double-pointed teeth which intervene between the canines (cuspids) and the molars, on each side of each jaw. See Tooth, n.

Example Sentences:

  • (1) Operative intervention showed a dysplastic bicuspid aortic valve with a membrane that covered the left coronary ostium.
  • (2) 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%).
  • (3) A 25 year old female with bicuspid aortic valve and aortic stenosis developed infectious endocarditis due to beta hemolytic streptococcus.
  • (4) Five patients with bicuspid aortic valves showed mitral valve diastolic flutter indicative of aortic regurgitation.
  • (5) A 23-year-old Japanese male with no evidence of previous heart disease was presented with bicuspid aortic valve and a life threatening acute aortic regurgitation due to subacute bacterial endocarditis.
  • (6) The mesiobuccal site on the first molar was compared to the mesiopalatal and direct buccal sites on the molar and the distobuccal site on the second bicuspid.
  • (7) The infection was associated with Fallot's tetralogy in 10 patients (17%), ventricular septal defect in 7 (4%), bicuspid aortic valve in 7 (16%), coarctation of the aorta in 6 (8%), atrial septal defects in 2 (1%), and patent ductus arteriosus and pulmonary artery branch stenosis in 1 patient each.
  • (8) After three days (baseline), marginal periodontitis was induced by tying silk ligatures at the gingival margins of maxillary and mandibular bicuspids and molars.
  • (9) This work shows the results of mechanical strength tests effected over first superior bicuspids before endodontically treated.
  • (10) The congenital bicuspid aortic valves usually become stenotic with severe calcification or regurgitant due to infective endocarditis (IE).
  • (11) The maxillary first molar--second bicuspid region was studied in patients with gingivitis and periodontitis.
  • (12) A case with a firm asymptomatic nodule of 1 cm diameter on the gingiva between the left upper cuspid and first bicuspid is presented.
  • (13) The idea of that early treatment, functional appliances, upper molar and bicuspids distal movements, upper sagittal suture opening and other proceedings, reduce extraction practice is widely extended.
  • (14) After surgical scaling and root planing of eight bicuspid teeth, the apical end of the pockets was estimated using an occlusal stent and a periodontal probe, then marked with a blade.
  • (15) The analysis of the scannograms obtained demonstrates that the valves of the thoracic ducts are mainly bicuspid, have a typical infundibular form, their cuspides are fused, forming a mesentery-like fold on the duct wall.
  • (16) Under the oblique loading, by the mesial apex of bicuspid are borne the tensile stress and compress stress, the latter is larger than the former, and the sigma 2 is -75.0.
  • (17) Congenital bicuspid aortic valve is a risk factor of aortic dissection, but the case is rare in Japan.
  • (18) The association of this anomaly with a bicuspid aortic valve has not been emphasized and the possible clinical consequences of this combination of malformations have not been described.
  • (19) One case was associated with bicuspid aortic valve and another with organic aortic stenosis.
  • (20) A high absolute prevalence of bicuspid aortic valve (17.5%) and aortic coarctation (12.5%) were observed relative to comparable series.

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.

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