Results 171 to 180 of about 1,190,819 (209)

The results of computer simulation of the dentinal fluid hydrodynamics in the open crown dentinal tubule

Stomatologiya, 2020
To study the hydrodynamics of the dentinal fluid along the dentinal tubule in the event of its opening as a result of mechanical and acid treatment of the dental crown dentin. Material and methods: A licensed version of the ANSYS / FLOTRAN computer program was used, which is a software tool for solving various problems of hydrodynamics, including ...
L V, Iyashvili, Yu A, Vinnichenko, A V, Vinnichenko   +2 more
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Influences of Dentinal Fluids on Experimental Caries

Journal of Dental Research, 1966
SYNOPSIS IN INTERLINGUA INFLUENTIA DE LIQUIDOS DENTINAL SUPER CARIE EXPERIMENTAL.—Con le objectivo de testar le hypothese que dentes nonvital es resistente contra carie, pulpa coronal esseva oblitterate con oxydo de zinc a eugenol o con un pasta aquee de osso inorganic in un prime dente molar superior e un inferior de rattos.
L R, Brown, W, Lefkowitz
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Fluid flow through cat dentine in vivo

Archives of Oral Biology, 1992
An outward flow of fluid through exposed dentine was demonstrated in anaesthetized cats. The flow was measured by observing the movement of the fat droplets of dilute milk in a glass capillary (i.d. 30 microns) with a microscope. The capillary was sealed to the dentine with a plastic cap.
N, Vongsavan, B, Matthews
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Fluid movement in human dentine

Archives of Oral Biology, 1965
Abstract To investigate fluid movement in dentine and a possible relationship between this movement and odontoblast aspiration, a chamber was designed which allowed microscopic observation of an exposed dentine surface, in vitro, while this surface was being subjected to reduced pressure.
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In-vivo fluid movement across dentine in the dog

Archives of Oral Biology, 1981
Abstract Conical chambers were cemented to dentine and connected via micropipettes to a pressure bottle to permit measurement of the rate of fluid movement across dentine under positive or negative hydrostatic pressures. Connecting the chamber to a pressure transducer permitted measurement of intra-pulpal tissue pressure through intact dentine, which
D H, Pashley, R, Nelson, E L, Pashley
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Evaluation of dentinal fluid flow behaviours: a fluid-structure interaction simulation

Computer Methods in Biomechanics and Biomedical Engineering, 2013
This study uses the fluid-structure interaction (FSI) method to investigate the fluid flow in dental pulp. First, the FSI method is used for the biomechanical simulation of dental intrapulpal responses during force loading (50, 100 and 150 N) on a tooth. The results are validated by comparison with experimental outcomes.
Kuo-Chih, Su, Shu-Fen, Chuang, Eddie Yin-Kwee, Ng, Chih-Han, Chang   +3 more
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Dentine hypersensitivity: the measurement in vitro of streaming potentials with fluid flow across dentine and hydroxyapatite

Journal of Periodontal Research, 1993
Stimulus transmission across dentine, in conditions such as dentine hypersensitivity, is considered to occur via a hydrodynamic mechanism. This fluid flow in dentine may then induce a mechanoreceptor response in pulpal nerves. However, when fluid flows through a porous structure electrical potentials are also generated.
H, Griffiths, G, Morgan, K, Williams, M, Addy   +3 more
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Regional resistances to fluid flow in human dentine in vitro

Archives of Oral Biology, 1978
Abstract The resistance to fluid movement through dentine was analysed in terms of 3 resistances placed in series: (1) surface resistance due to the presence of debris occluding dentinal tubules, (2) an intratubular resistance due to mineralized nodules and internal irregularities within the tubules, (3) a pulpal resistance due to the presence of ...
D H, Pashley, M J, Livingston, J D, Greenhill   +2 more
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Odontoblast aspiration and fluid movement in human dentine

Archives of Oral Biology, 1967
Abstract To investigate further a possible relationship between odontoblast aspiration and fluid movement in dentine, axial coronal dentine was exposed by disk cut and fracture and subjected to reduced pressure in vitro . Sections showed that odontoblast aspiration had occurred into dentine, the peripheral part of which had been exposed by fracture,
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Minimizing Dentinal Fluid Flow Associated with Gap Formation

Journal of Dental Research, 2006
The relationship between gap formation and outward fluid flow and procedures to minimize both phenomena were investigated in extracted human premolars restored in vitro with MOD composite restorations. We hypothesized that either glass-ionomer cement (GIC) liners or low-shrinkage composite could reduce fluid flow related to gap formation.
D N, Ratih, J E A, Palamara, H H, Messer
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