Results 241 to 250 of about 61,205,348 (298)
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A Method of Preparing Sperm Whale Teeth for Age Determination
Nature, 1966PREVIOUS methods of preparing sperm whale teeth for age determination have generally involved the preparation of ground and polished thin sections1–3, or half teeth2,4,5, which have been examined under a dissecting microscope2–7, a surface projector2, polarized light2, or after treatment with histological stains, for example carbol fuchsin or ...
J M, Bow, C, Purday
exaly +3 more sources
Journal of the American Dental Association, 1950
Gösta Gustafson, D. Odont Malmö
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Gösta Gustafson, D. Odont Malmö
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Principal Component Regression for Forensic Age Determination Using the Raman Spectra of Teeth
Applied Spectroscopy, 2020 Raman spectra of mineralized tooth tissues were used to build a principal component regression (PCR) age determination model for forensic application. A sample of 71 teeth was obtained from donors aging from 11 to 76 years.
Ozren Gamulin +2 more
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Electron Probe Microanalysis of Human Teeth for the Determination of Individual Age
Medicine, Science and the Law, 1990The calcium and phosphorus weight concentrations as well as the calcium/phosphorus weight ratio were determined by electron probe microanalysis both peritubularly and intertubularly in the dentine of 25 adults of varying age and sex, originating from our autopsy material.
F, Kosa, A, Antal, I, Farkas
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Failure of Use of Cemental Annulations in Teeth to Determine the Age of Humans
Journal of Forensic Sciences, 1988Abstract The reliability of cemental annulation counts in teeth was examined to determine its value as an age indicator for humans. One hundred extracted human teeth were embedded in polyester casting resin and sectioned using a diamond wafering saw.
C S, Miller, S B, Dove, J A, Cottone
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Deutsche zahnarztliche Zeitschrift, 1980
Of the many measurements cited in the literature, correlation with age can only be established for the length of the transparent root dentine and that of the pulp cavity. The chronological age can be estimated with 90% reliability (+/- 5 years) for subjects between the ages of 20 and 60 by evaluating the quotients of both measurements.
R, Hopp, U, Blick
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Of the many measurements cited in the literature, correlation with age can only be established for the length of the transparent root dentine and that of the pulp cavity. The chronological age can be estimated with 90% reliability (+/- 5 years) for subjects between the ages of 20 and 60 by evaluating the quotients of both measurements.
R, Hopp, U, Blick
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The determination of 90Sr and 228Ra in human teeth by age groups and in other substances
The International Journal of Applied Radiation and Isotopes, 1984The total 90Sr content of human teeth peaks at a value of 0.65 pCi/g calcium in the age group of 20-30 years. It is not present in those 50 years or older. Various other substances show extensive amounts of 90Sr especially in cow bones, bone meal and dry milk.
E F, Neuzil, M E, Dysart
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Laminae in the teeth of the cape fur seal used for age determination
Life Sciences, 1978Abstract A sample of 40 known age Cape fur seal, Arctocephalus pusillus canine teeth were histologically and manually sectioned and examined for laminae to determine if these growth layers could be used for age determination in this species of seal.
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Journal of Clinical Forensic Medicine, 1998
Age determination by teeth examination is one of the main means of determining personal identification. Current studies have suggested different techniques for determining the age of a subject by means of the analysis of microscopic and macroscopic structural modifications of the tooth with ageing.
AMARITI M. L. +5 more
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Age determination by teeth examination is one of the main means of determining personal identification. Current studies have suggested different techniques for determining the age of a subject by means of the analysis of microscopic and macroscopic structural modifications of the tooth with ageing.
AMARITI M. L. +5 more
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Age Determination of Adult Human Remains by Teeth Examination
Journal of the Forensic Science Society, 1962This paper is an extract from a thesis presented to the Faculty of Dental Science, University of Melbourne, in fulfilment of the requirements for the degree of Doctor of Dental Science. The four point system of age determination propounded in 1950 by Gustafson, was investigated by sectioning and examining 146 anterior teeth from individuals ranging in
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