Results 1 to 10 of about 80,577 (160)

Ultra-high resolution Fourier domain optical coherence tomography for resolving thin layers in painted works of art [PDF]

open access: yes, 2013
While OCT has been applied to the non-invasive examination of the stratigraphy of paint layers in recent years, it has been recognized that the resolutions of commercially available OCT cannot compete in depth resolution with conventional microscopic ...
Cheung, CS, Liang, H
core   +1 more source

Dating climatic change in hot deserts using desert varnish on meteorite finds [PDF]

open access: yes, 2003
A thin coating of desert varnish occurs on Forrest 009 and Nurina 004, both equilibrated ordinary chondrite (L6) finds from the Nullarbor Plain, Australia.
Bland, P.A., Lee, M.R.
core   +1 more source

Non-invasive investigations of a wall painting using optical coherence tomography and hyperspectral imaging [PDF]

open access: yes, 2011
Multispectral and hyperspectral imaging are efficient methods of measuring spectral reflectance at high spatial resolution. This non-invasive technique has been applied to the imaging of paintings over the last 20 years.
Howard, H   +3 more
core   +1 more source

Application of OCT to examination of easel paintings [PDF]

open access: yes, 2004
We present results of applying low coherence interferometry to gallery paintings. Infrared low coherence interferometry is capable of non-destructive examination of paintings in 3D, which shows not only the structure of the varnish layer but also the ...
Cucu, R.   +9 more
core   +1 more source

Optical coherence tomography- a non-invasive technique applied to conservation of paintings [PDF]

open access: yes, 2005
It is current practice to take tiny samples from a painting to mount and examine in cross-section under a microscope. However, since conservation practice and ethics limit sampling to a minimum and to areas along cracks and edges of paintings, which are ...
Cid, M.G.   +10 more
core   +1 more source

Experimental Verification of the Mechanical Resistance of Forensic Marking by Means Synthetic DNA [PDF]

open access: yes, 2017
This article deals with experimental verification of resistance of forensic identification marks (microdots in combination with artificial DNA) to property. It is considered mechanical abrasion from potential offender to remove or damage readability of
Hütter, Marek   +2 more
core   +1 more source

Fluoride Release from Two High-Viscosity Glass Ionomers after Exposure to Fluoride Slurry and Varnish [PDF]

open access: yes, 2019
The effect of brushing with different fluoride slurries on the fluoride release (FR) of different high-viscosity glass ionomer cements (GICs) was investigated.
Nassar, Hani M., Platt, Jeffrey A.
core   +2 more sources

Remineralization strategies in oral hygiene: a position paper of Italian Society of Oral Hygiene Sciences-S.I.S.I.O. working group [PDF]

open access: yes, 2017
Background/Objective: The clinical conditions that lead to an alteration of the enamel structure are numerous. The diet high in sugars and acidifying substances, psychological stress that triggers parafunctional behaviors, the reduced intake of fiber ...
Acito, Giovanna   +10 more
core   +1 more source

Fluoride Varnishes

open access: yesJournal of the California Dental Association, 2003
Fluoride varnishes are available in the United States, and the Federal Drug Administration has approved a fluoride varnish for use as a cavity preparation lining varnish and as a tooth desensitizing agent. The literature, however, supports the use of fluoride varnishes to inhibit tooth demineralization and enhance remineralization.
openaire   +2 more sources

Fluorides, orthodontics and demineralization: a systematic review [PDF]

open access: yes, 2005
Objectives: To evaluate the effectiveness of fluoride in preventing white spot lesion (WSL) demineralization during orthodontic treatment and compare all modes of fluoride delivery.
A. A. Shah   +5 more
core   +2 more sources

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