Results 71 to 80 of about 240,832 (212)

The application of amino acid racemization in the acid soluble fraction of enamel to the estimation of the age of human teeth [PDF]

open access: yes, 2008
Estimation of age-at-death for skeletonised forensic remains is one of the most significant problems in forensic anthropology. The majority of existing morphological and histological techniques are highly inaccurate, and show a bias towards ...
Collins, M. J.   +3 more
core   +1 more source

Tooth characters of protohippine horses with special reference to species from the Merychippus zone, California [PDF]

open access: yes, 1934
The critical review of equine tooth characters attempted in this paper is the result of a study of the protohippine horses obtained from the Merychippus Zone of the north Coalinga district, California.
Bode, Francis D.
core  

Pure phase-encoded MRI and classification of solids [PDF]

open access: yes, 1995
Here, the authors combine a pure phase-encoded magnetic resonance imaging (MRI) method with a new tissue-classification technique to make geometric models of a human tooth.
Barr, Alan H.   +4 more
core   +1 more source

In Vitro Evaluation of Surface Roughness and Color Variation after Two Brushing Protocols with Toothpastes Containing Different Whitening Technologies

open access: yesApplied Sciences
The aim was to evaluate the effect of different whitening toothpastes on the enamel surface roughness and color variation. Twenty-four molars were sectioned and divided into eight groups (n = 3) considering the following two factors under study ...
Angel Lobito   +5 more
doaj   +1 more source

The development and characteristics of a hand-held high power diode laser-based industrial tile grout removal and single-stage sealing system [PDF]

open access: yes, 2002
As the field of laser materials processing becomes ever more diverse, the high power diode laser (HPDL) is now being regarded by many as the most applicable tool.
A. W. Gale   +25 more
core   +1 more source

Comparison of the mechanical properties of dentin and enamel determined by different nanoindentation techniques: conventional method and continuous stiffness measurement

open access: yesBoletín de la Sociedad Española de Cerámica y Vidrio, 2010
The obtaining of mechanical properties as elastic modulus and hardness of enamel and dentin has been an important topic of study in material science. Due to the small size of the samples, nanoindentation test becomes an ideal technique for determining ...
Ceballos, L.   +4 more
doaj  

Microhardness and chemical composition of human tooth

open access: yesMaterials Research, 2003
Hardness of human tooth, both in enamel and dentin, has been measured at different sites using a Vicker's diamond. In this work we show that these values are almost constant all along the enamel and dentin thicknesses.
Maria del Pilar Gutiérrez-Salazar   +1 more
doaj   +1 more source

Niche partitioning and competition between different rabbit breeds using stable isotopes

open access: yesWorld Rabbit Science
Stable isotope analysis (SIA) is an evolving method for determining diet, understanding food web and resolving biogeochemical issues in the ecosystem.
Usama Shouket   +4 more
doaj   +1 more source

Role of estrogen related receptor beta (ESRRB) in DFN35B hearing impairment and dental decay [PDF]

open access: yes, 2014
BACKGROUND: Congenital forms of hearing impairment can be caused by mutations in the estrogen related receptor beta (ESRRB) gene. Our initial linkage studies suggested the ESRRB locus is linked to high caries experience in humans. METHODS: We tested for
Abreu, Fernanda V.   +31 more
core   +5 more sources

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