Results 271 to 280 of about 28,412 (311)

Cell attachment to demineralized root surfaces in vitro

Journal of Periodontal Research, 1980
The periodontal ligament and crowns were removed from extracted porcine molars and the surface area of each root was determined. Cultured fibroblast‐like cells derived from periodontal ligament were allowed to attach in vitro to the roots, some of which had been demineralized for various periods of time in citric, hydrochloric or ethylenediamine ...
G A, Boyko, D M, Brunette, A H, Melcher
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Modelling in vitro growth of dense root networks

Journal of Theoretical Biology, 2008
Hairy roots are plants genetically transformed by Agrobacterium rhizogenes, which do not produce shoots and are composed mainly by roots. Hairy roots of Ophiorrhiza mungos Linn. are currently gaining interest of pharmacologists, since a secondary product of their metabolism, camptothecin, is used in chemotherapy.
Bastian, P., Chavarría-Krauser, Andrés, Engwer, C., Jäger, W., Marnach, S., Ptashnyk, M.   +5 more
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[In vitro evaluation of five root canal sealers].

Minerva stomatologica, 2003
An adequate film thickness is an important property of an endodontic sealer, when used in combination with gutta-percha, to eventually fill minimal voids between gutta-percha and the root canal walls, ensuring an hermetic three-dimensional root canal obturation. The goal of the present study was to evaluate the film thickness of the following five root
TESTARELLI, Luca, ANDREASI BASSI M, GAMBARINI, Gianluca   +2 more
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Penetration of bacteria in bovine root dentine in vitro

International Endodontic Journal, 2000
Peters LB, Wesselink PR, Moorer WR. Penetration of bacteria in bovine root dentine in vitro. International Endodontic Journal, 33, 28–36, 2000.Aim  The aim of this study was to develop a test model to quantify the penetration of bacteria into dentinal tubules.Methodology The model consisted of two compartments separated by a bovine dentine specimen ...
Peters, L.B., Wesselink, P.R., Moorer, W.R.   +2 more
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Penetration of Varnishes into Demineralized Root Dentine in vitro

Caries Research, 1997
In this paper the penetration of three different varnishes employed in caries prevention (Duraphat, Fluor Protector and Cervitec) into demineralized dentine is quantified using confocal laser scanning microscopy. The results show that the varnish penetration into lesions about 85 microns in depth if for Cervitec about 35 microns and considerably less ...
Arends, J, Duschner, H, Ruben, J L
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Rooting of in Vitro Cuttings

1991
Most perennial plants, herbaceous or woody, have a genetical structure that does not allow them to be consistently multiplied other than by vegetative multiplication. The horticultural industry is thus largely dependent on adventitious rooting, whether by classical multiplication methods or by in vitro micropropagation.
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Adventitious Root Induction in Arabidopsis thaliana as a Model for In Vitro Root Organogenesis

2012
Adventitious root formation, the development of roots on non-root tissue (e.g. leaves, hypocotyls and stems) is a critical step during micropropagation. Although root induction treatments are routinely used for a large number of species micropropagated in vitro as well as for in vivo cuttings, the mechanisms controlling adventitious rooting are still ...
Inge, Verstraeten, Tom, Beeckman, Danny, Geelen   +2 more
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Establishment of Root Cultures In Vitro

1989
One of the pioneering events in the development of tissue culture techniques was the successful establishment of actively growing clones of tomato roots reported by P. R. White in 1934. In this classic research, White cultured tomato roots through 160 successive passages, each 7 days in duration.
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Cultivation in Vitro of Excised Pea Roots

Botanical Gazette, 1937
1. A medium suitable for the growth of excised pea roots has been described. This medium contains 4 per cent sucrose in addition to inorganic salts. 2. Freshly excised pea root tips 3-4 mm. long grow 60 to 95 mm. in this medium in the first week; 200 mm. or more in the first two weeks. 3.
James Bonner, Fred Addicott
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Electrophysiological responses of trigeminal root ganglion neurons in vitro

Neuroscience, 1988
The membrane electrical properties of neurons and their responses to endogenous compounds or other neuroactive substances were investigated in vitro with intracellular recording techniques in slices of trigeminal root ganglia of guinea-pigs. The mean resting membrane potential of these neurons was -60 mV.
E, Puil, I, Spigelman
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