Results 11 to 20 of about 46,767 (261)

Micron-scale human enamel layer characterization after orthodontic bracket debonding by intensity-based layer segmentation in optical coherence tomography images

open access: yesScientific Reports, 2021
In clinical orthodontic practice, fixed brackets are widely used for tooth movement and adjustments. Although years of research and development have improved the workability of fixed orthodontic brackets, there are still controversies regarding its ...
Naresh Kumar Ravichandran   +4 more
doaj   +1 more source

Structural Morphology of Molars in Large Mammalian Herbivores: Enamel Content Varies between Tooth Positions. [PDF]

open access: yesPLoS ONE, 2015
The distribution of dental tissues in mammalian herbivores can be very different from taxon to taxon. While grazers tend to have more elaborated and complexly folded enamel ridges, browsers have less complex enamel ridges which can even be so far reduced
Daniela E Winkler, Thomas M Kaiser
doaj   +1 more source

A Novel Digital Technique to Quantify the Area and Volume of Enamel Removal after Interproximal Enamel Reduction

open access: yesApplied Sciences, 2021
The aim of this study was to show a novel and accurate digital measurement protocol by analyzing the area and volume for interproximal tooth enamel surface reduction.
Martina Triduo   +6 more
doaj   +1 more source

Uneven distribution of enamel in the tooth crown of a Plains Zebra (Equus quagga) [PDF]

open access: yesPeerJ, 2015
Unworn teeth of herbivorous mammals are not immediately functional. They have to be partially worn to expose enamel ridges which can then act as shear-cutting blades to break the food down.
Daniela E. Winkler, Thomas M. Kaiser
doaj   +2 more sources

Beyond natural tooth enamel

open access: yesThe Innovation, 2022
With the rapid development of aerospace, national defense technology, and biological hard-tissue repair, engineers and scientists always aim at the design and manufacture of composites with higher stiffness, viscoelasticity, strength, and toughness, but unfortunately, these properties—stiffness/viscoelasticity and strength/toughness—are generally ...
openaire   +4 more sources

Biochemical Composition of the Teeth and the Effect of the Various Chemical Elements on their Structure

open access: yesČeská Stomatologie a Praktické Zubní Lékařství, 2017
Introduction and objectives: The main objective of this review article is a detailed description of the tooth structure, bioorganic and bioinorganic composition of the tooth components, the protective biochemical process of tooth which can protect ...
S. Dolinská, V. Tomečková
doaj   +1 more source

Visualization of enamel rods in hunter-schreger bands and enamel in incipient lesion under polarized and light microscopy

open access: yesSaudi Journal of Oral Sciences, 2020
Background: An enamel rod is the basic unit of tooth enamel measuring 4 μm wide to 8 μm high and is tightly packed, highly organized mass of hydroxyapatite crystals, which are hexagonal in shape and provide rigidity to the rods and strengthen the enamel.
Sandhya Tamgadge   +2 more
doaj   +1 more source

Aluminablasting of human tooth enamel

open access: yesJournal of Materials Science: Materials in Medicine, 1997
As part of a programme aimed at enhancing the degree of bonding that can be developed between dental polymer and human tooth enamel, the enamel has been subjected to two types of pretreatment, namely, aluminablasting (a mechanical etching) and aluminablasting followed by surface etching with orthophosphoric acid. Analysis of the surfaces so prepared by
M, Romînu, D, Bratu, J, Hurst
openaire   +2 more sources

To What Extent is Primate Second Molar Enamel Occlusal Morphology Shaped by the Enamel-Dentine Junction? [PDF]

open access: yesPLoS ONE, 2015
The form of two hard tissues of the mammalian tooth, dentine and enamel, is the result of a combination of the phylogenetic inheritance of dental traits and the adaptive selection of these traits during evolution.
Franck Guy   +3 more
doaj   +1 more source

An epithelial signalling centre in sharks supports homology of tooth morphogenesis in vertebrates

open access: yeseLife, 2022
Development of tooth shape is regulated by the enamel knot signalling centre, at least in mammals. Fgf signalling regulates differential proliferation between the enamel knot and adjacent dental epithelia during tooth development, leading to formation of
Alexandre P Thiery   +3 more
doaj   +1 more source

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