Results 131 to 140 of about 1,812 (173)

Cold sterilization of gutta-percha cones with formocresol vapors

The Journal of the American Dental Association, 1977
Cold sterilization of gutta-percha cones was accomplished by exposing them to formocresol vapors for 16 hours. The data obtained from this in vitro study indicate that gaseous sterilization with formocresol vapors is effective against a variety of gram-positive, gram-negative, and spore-forming microorganisms.
E S, Senia, R V, Marraro, J L, Mitchell
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Evidence for antibacterial activity of endodontic gutta-percha cones

Oral Surgery, Oral Medicine, Oral Pathology, 1982
In the presence of endodontic gutta-percha cones, several species of bacteria were killed in vitro. Silver points, when compared with gutta-percha cones, were not or were considerably less effective against the target organism. Staphylococcus aureus, in our assay system.
W R, Moorer, J M, Genet
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Rapid decontamination of gutta-percha cones with sodium hypochlorite

Journal of Endodontics, 1999
Gutta-percha cones are now widely used to fill root canals. Because they cannot be sterilized by conventional autoclaving or in a hot-air oven, gutta-percha cones require rapid chairside decontamination before use to maintain the aseptic chain, an essential factor in successful endodontic therapy.
C L, Cardoso, C R, Kotaka, R, Redmerski, M, Guilhermetti, A F, Queiroz   +4 more
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In vivo aging of gutta‐percha dental cone

Journal of Applied Polymer Science, 2006
AbstractGutta‐percha cone is the most widely used material for root canal filling. The in vivo aging of this cone focus on the degradation of its main organic component, trans‐1,4‐polyisoprene, was studied. Aged cones (25 samples) from 2 to 30 years of root canal filling were extracted from different patients in the occasion of retreatment by ...
João Batista A. Silva, Regina C. M. de Paula, Judith P. A. Feitosa, Eduardo Diogo Gurgel‐Filho, Claudio Maniglia‐Ferreira, Francisco Jose de Souza Filho   +5 more
openaire   +1 more source

[Regeneration of old gutta-percha cones].

Archivio stomatologico, 1990
Aged gutta-percha filling cones become brittle and unsuitable for use; a technique was published for reducing their fragility, thus "rejuvenating" them. The Authors study this technique in five different cone brands, but only 30% of cones made usable.
Piccirillo P, Belnome G, SERPICO, Rosario   +2 more
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Chemical decontamination of gutta-percha cones with polyvinylpyrrolidone-iodine

Oral Surgery, Oral Medicine, Oral Pathology, 1971
Abstract Commercially available gutta-percha cones can be effectively decontaminated by immersion for 6 minutes or more in polyvinylpyrrolidone-iodine prior to insertion into root canals.
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Atomic force microscopy study of gutta-percha cone topography

Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2004
The aim of this study was to investigate the topography of the apical portion of 4 different commercially available standardized gutta-percha (GP) cones with atomic force microscopy (AFM). GP cones (Analytic, Dentsply, Tanari, and Endo Points) were cut 3 mm from the tip, attached in a glass base, and positioned in the AFM.
Caroline R A, Valois, Luciano P, Silva, Ricardo B, Azevedo, Edson D, Costa   +3 more
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The use of paraformaldehyde powder for the sterile storage of gutta-percha cones

Journal of Endodontics, 1986
This investigation was undertaken to determine whether the use of paraformaldehyde powder for the sterile storage of gutta-percha cones is necessary, effective, and safe. Gutta-percha cones from unopened manufacturer's packages (Hygienic) were found to be sterile and to possess no inherent antimicrobial properties. Paraformaldehyde powder placed within
J R, Higgins, C W, Newton, C J, Palenik
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Rapid sterilization of gutta-percha cones with 5.25% sodium hypochlorite

Journal of Endodontics, 1975
Gutta-percha cones were contaminated with pure cultures of Staphylococcus epidermidis, Corynebacterium xerosis, Escherichia coli, Streptococcus faecalis, and Bacillus subtilis. The cones were then immersed in undiluted Clorox (5.25% sodium hypochlorite) for variable periods of time. All organisms except B subtilis were killed after a 30-second exposure
E S, Senia, R V, Marraro, J L, Mitchell, A G, Lewis, L, Thomas   +4 more
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Residual chloroform and plasticity in customized gutta-percha master cones

Journal of Endodontics, 1988
Drying before use has been recommended for customizedmaster cones prepared with the chloroform dip technique. This was suggested to minimize future shrinkage of the cone. The effect of drying time on residual chloroform in customized gutta-percha master cones and on their plasticity was studied by gravimetric and indirect plasticity assays.
Z, Metzger, O, Assif, A, Tamse
openaire   +2 more sources