What's the difference between sextans and sextant?

Sextans


Definition:

  • (n.) A Roman coin, the sixth part of an as.
  • (n.) A constellation on the equator south of Leo; the Sextant.

Example Sentences:

Sextant


Definition:

  • (n.) The sixth part of a circle.
  • (n.) An instrument for measuring angular distances between objects, -- used esp. at sea, for ascertaining the latitude and longitude. It is constructed on the same optical principle as Hadley's quadrant, but usually of metal, with a nicer graduation, telescopic sight, and its arc the sixth, and sometimes the third, part of a circle. See Quadrant.
  • (n.) The constellation Sextans.

Example Sentences:

  • (1) Treatment needs were determined by the worst periodontal score per sextant.
  • (2) Pathologic pockets of 6 mm or more were found in 1.3 and 0.3 sextants in the diabetic and control group subjects, respectively (P less than 0.001).
  • (3) Neither were any differences found in the periodontal condition related to the duration and control of diabetes, whereas diabetics with advanced retinopathy demonstrated more sextants with deep pockets.
  • (4) A randomized four-sextant treatment design was used.
  • (5) The value of digital rectal examination, computerized tomography, magnetic resonance imaging, prostate-specific antigen, transrectal ultrasonography, and systematic-sextant biopsy in the identification of lymph node-positive patients before radical prostatectomy was analyzed in 103 men who had pelvic lymph node dissection, CT had a sensitivity of only 7% and a specificity of 96% in detecting lymph nodes, whereas magnetic resonance imaging had a sensitivity of 50% and a specificity of 100%.
  • (6) Based on the Community Periodontal Index of Treatment Needs (CPITN) it can be stated that more than 90% of the adult population of 25 years and over needs oral hygiene education and scaling in one of more sextants (TN2).
  • (7) The mean number of missing sextants was also significantly higher in diabetics.
  • (8) Very few patients had 'healthy' periodontal sextants at the first visit; the most frequent CPITN category was 3.
  • (9) Any child with two or more sextants or teeth with CPITN code 3 or one sextant code 4 was taken for a radiographic and full clinical examination.
  • (10) The mean number of sextants requiring scaling was 0.6 per person at age 17 in Espoo as compared to 4.5 at 18.5 yr of age in Chiangmai.
  • (11) There are broad differences in the numbers of healthy sextants between developing countries and those which are highly industrialized.
  • (12) Straight rods, fusiforms and motile rods correlated negatively to the number of healthy sextants per subject.
  • (13) In general, females were healthier than males, had a significantly greater number of healthy sextants, less sextants with calculus and less sextants with deep pockets.
  • (14) Posterior sextants with CPITN Code 4 were more likely treated with surgery than sextants with CPITN Code 3.
  • (15) per sextant in the Spaniard population under 20 years of age.
  • (16) One maxillary sextant was splinted, while the other was unsplinted.
  • (17) Four pockets per patient, one in each posterior sextant, were chosen.
  • (18) Partial mouth random recording (2 upper and 1 lower or 1 upper and 2 lower sextants) was made by CPITN of 150 sextants, and at 6 sites around each tooth in each sextant for each index using a pressure-sensitive probe, with Newman tip and Williams markings, and a WHO 621 tip, probing pressure 0.25 N. Ranges of each index were compared with corresponding CPITN data.
  • (19) Surgical therapy was effective over all levels of disease severity and was the preferred form of therapy with respect to reduction of probing depth except for sextants exhibiting 4 to 5 mm pockets.
  • (20) While plaque and calculus were present in many sextants, there was little intense gingivitis and signs of advanced periodontal diseases were rarely present.

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