Results 191 to 200 of about 10,287 (255)
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Dentine permeability and tracer tests
Journal of Dentistry, 1999This paper reviews the evidence for dentine's permeability in order to clarify and emphasize its confounding effect on leakage test measurements, and hence the need to use special test designs to avoid its effects.The literature on the subject between 1887 and 1997, including 249 articles.The prerequisite condition for any tracer penetration test is ...
M S, Gale, B W, Darvell
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Dentine permeability and dentine adhesion
Journal of Dentistry, 1997The objectives of this paper are to review the structure of dentine as it pertains to adhesive bonding and to describe the importance of resin permeation into dentinal tubules and into spaces created between collagen fibrils by acid-etching during resin bonding.
D H, Pashley, R M, Carvalho
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Dentin permeability of carious primary teeth
Nigerian Journal of Clinical Practice, 2017Many in vitro studies have used dentine permeability to evaluate the efficacy of various restorative and preventative procedures. The easiest way to evaluate dentine permeability is to calculate its hydraulic conductance (Lp) using fluid filtration methods.
Ozkorucuklu, S. +2 more
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The relationship between dentin bond strengths and dentin permeability
Dental Materials, 1989The relationship between dentin permeability and the shear bond strength of Scotchbond/Silux was investigated. In the presence of a smear layer, there was no correlation between dentin permeability and dentin bond strengths. After removal of the smear layer with acids, there was an inverse relationship between dentin permeability and dentin bond ...
L, Tao, D H, Pashley
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Dentin Permeability: Determinants of Hydraulic Conductance
Journal of Dental Research, 1978A technique is described which permits measurement of the ease with which fluid permeates dentin. This value, the hydraulic conductance of dentin, increased as surface area increases and/or as dentin thickness decreases. It increased 32-fold when dentin was acid etched due to removal of surface debris occluding the tubules.
O W, Reeder +3 more
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Permeability of normal versus carious dentin
Dental Traumatology, 1991Abstract Although a number of reports have been published demonstrating that carious dentin is less permeable than normal dentin, these reports have been qualitative rather than quantitative. The purpose of this in vitro study was to apply a quantitative technique to the study of the permeability of carious human teeth before and after excavation ...
E L, Pashley +3 more
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Permeability of demineralized dentin to HEMA
Dental Materials, 2000The objectives of this study were to develop a macromodel of the demineralized layer of dentin that is formed after acid-etching, and to determine if the amount of HEMA uptake was responsive to air drying. The hypothesis that was tested was that HEMA uptake by demineralized dentin depends upon the degree of expansion of the collagen fibril network ...
D H, Pashley +5 more
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Effect of Dycal® on dentin permeability
Dental Traumatology, 1988Abstract The ability of 3 formulations of a hard‐setting calcium hydroxide‐containng base material (Dycal®) to seal dentinal tubules was evaluated in an in vitro model. The latest light‐cured generation of the material was clearly superior to the previous formulations at all time periods tested.
L, Tao, J M, Reynolds, D H, Pashley
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Dentin permeability: Self-etching and one-bottle dentin bonding systems
The Journal of Prosthetic Dentistry, 2003There are many bonding systems available, with or without a prior acid etch. The mechanisms differ from system to system. Therefore it is important that the clinician know which are the most effective and which provide the best seal.This study measured the infiltration of physiological saline solution across dentin after application of self-etching or ...
Geneviève, Grégoire +3 more
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