Results 11 to 20 of about 668,429 (289)

The crystallographic structure of dental enamel and related apatites [PDF]

open access: yes, 1964
PhDSynthetic, biological and mineralogical carbonate-containing apatites have been studied, principally by infra-red absorption spectroscopy (using polarised or unpolarised radiation), The substitution of a carbonate ion for two hydroxyl ions in the ...
Elliott, James Cornelis
core   +4 more sources

The effects of smoothies on enamel erosion: an in situ study [PDF]

open access: yes, 2012
Aims: To measure, in vitro, the pH and titratable acidity (TA) of various soft drinks and to assess the effect of smoothies on erosive tooth surface loss of enamel following a 21-day pH cycling protocol using an in situ model. Methods: The inherent pH of
Ali, Hanein
core   +6 more sources

The Epidemiology, Aetiology, and Histopathology of Developmental Enamel Defects in Human Teeth [PDF]

open access: yes, 1983
PhDThe prevalence of developmental enamel defects in t11 permanent dentition was investigated in a sample of 2923 East London schoolchildren aged 5 to 15 years. Enamel discolourations and hypoplasias were identified using well defined criteria.
Smith, Joyce Mary
core   +4 more sources

The structure and development of mammalian enamel. [PDF]

open access: yes, 1964
PhDEnamel development and structure have been studied in a number of placental and marsupial mammals, by light microscopy; electron-microscopy; and scanning electron microscopy.
Boyde, Alan
core   +4 more sources

Sintering of Dental Porcelain Enamels [PDF]

open access: yesJournal of Dental Research, 1976
This study showed the effects of sintering temperature and atmospheric pressure on the density, tensile strength, and microstructure of porcelain enamels. Although the densities of the opaque porcelains were higher, they were weaker than the gingival porcelains.
Meyer, J. M., O'Brien, W. J., Yu, C. U.
openaire   +3 more sources

Investigation on the Gradient Nanomechanical Behavior of Dental Fluorosis Enamel

open access: yesNanoscale Research Letters, 2018
This study aims to investigate the gradient nanomechanical behavior of dental fluorosis enamel and provide appropriate selection criteria for restorative materials.
Jie Min   +6 more
doaj   +1 more source

Human deciduous mandibular molar incremental enamel development. [PDF]

open access: yes, 2010
Quantitative studies of incremental markings retained within human enamel have reconstructed the duration and rate (crown and cusp formation times, initiation and completion, daily enamel secretion rates) of permanent tooth development. This approach has
Patrick Mahoney, Mahoney, Patrick
core   +1 more source

The role of mesoscopic modelling in understanding the response of dental enamel to mid-infrared radiation [PDF]

open access: yes, 1988
Human dental enamel has a porous mesostructure at the nanometre to micrometre scales that affects its thermal and mechanical properties relevant to laser treatment.
BOTTAUSCIO, ORIANO   +654 more
core   +2 more sources

Crystallographic and Colorimetric Analysis of Dental Enamel

open access: yesDental Anthropology, 1997
Tooth color and the correlation of the composition of dental enamel with color were investigated in samples of teeth from two medieval Serb cemeteries. Differences in the composition of apatite crystals in the dental enamel of the two samples were found.
Ljiljana Tihaček-Šojić   +2 more
doaj   +1 more source

Association of dental enamel lead levels with risk factors for environmental exposure

open access: yesRevista de Saúde Pública, 2010
OBJECTIVE: To analyze household risk factors associated with high lead levels in surface dental enamel. METHODS: A cross-sectional study was conducted with 160 Brazilian adolescents aged 14-18 years living in poor neighborhoods in the city of Bauru ...
Kelly Polido Kaneshiro Olympio   +5 more
doaj   +3 more sources

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