Results 221 to 230 of about 22,010 (253)

Cleanliness of Canal Walls following Gutta-Percha Removal with Hand Files, RaCe and RaCe plus XP-Endo Finisher Instruments: A Photographic in Vitro Analysis

Iranian endodontic journal, 2017
Introduction: Gutta-percha must be removed from the root canal space during retreatment to ensure a more favorable outcome. The aim of this study was to compare the efficacy of hand instruments, RaCe and RaCe plus XP-endo finisher instruments in removal ...
K. Karamifar, Neda Mehrasa, Pouyan Pardis, M. Saghiri   +3 more
semanticscholar   +1 more source

Evaluation of the filling ability of artificial lateral canals using calcium silicate-based and epoxy resin-based endodontic sealers and two gutta-percha filling techniques.

International Endodontic Journal, 2016
AIM To evaluate the ability of a calcium silicate-based sealer (iRoot SP) and an epoxy resin-based sealer (Topseal) using two gutta-percha filling techniques to fill artificial lateral canals (ALCs).
R. Fernández, J. Restrepo, D. Aristizábal, L. G. Álvarez   +3 more
semanticscholar   +1 more source

Efficacy of ProTaper and Mtwo Retreatment Files in Removal of Gutta-percha and GuttaFlow from Root Canals

Iranian endodontic journal, 2016
Introduction: The aim of this in vitro study was to compare the efficacy of ProTaper retreatment (ProTaper R) and Mtwo retreatment (Mtwo R) files in removing gutta-percha and GuttaFlow from endodontically treated straight root canals.
S. Khedmat, A. Azari, A. Shamshiri, Mehdi Fadae, Hoorieh Bashizadeh Fakhar   +4 more
semanticscholar   +1 more source

Comparative analyses of ion release, pH and multispecies biofilm formation between conventional and bioactive gutta-percha.

International Endodontic Journal, 2016
AIM To analyse the effect of commercial and experimental gutta-percha with the addition of niobium phosphate glass on biofilm formation by oral bacteria from human dental plaque.
C. Carvalho, Zhejun Wang, Ya Shen, G. Gavini, J. R. Martinelli, A. Manso, M. Haapasalo   +6 more
semanticscholar   +1 more source

Modifications of the Gutta-Percha Hydrocarbon

Rubber Chemistry and Technology, 1932
Abstract The spongy product from gutta-percha hydrocarbon, which is obtained from a concentrated petroleum ether solution, consists of microcrystals of the α-modification. The difference in its solubility and that of the compressed product prepared from the spongy product is perhaps attributable to the presence of an impurity.
J. R. Katz, A. W. K. de Jong
openaire   +2 more sources

GUTTA-PERCHA TISSUE IN SURGERY

Journal of the American Medical Association, 1910
Having observed that the men in general practice with whom I come in contact are for the most part unfamiliar with the use of gutta-percha tissue in surgery, I felt that it might be worth while to call attention to this agent. This unfamiliarity is explained by the fact that practically nothing is said about gutta-percha tissue in textbooks of surgery,
openaire   +4 more sources

Comparison of tissue response between a synthetic gutta-percha and a natural gutta-percha endodontic filler

Oral Surgery, Oral Medicine, Oral Pathology, 1975
Biologic acceptance is one of several criteria that must be met by an endodontic filling material. The purpose fo this experiment was to compare a new filling material consisting of a synthetic gutta-percha with a standard material consisting of natural gutta-percha. Each sample, being an endodontic point, contained a quantity of fillers. The materials
Frank Casanova, Ronald J. Nicholson, John S. Greenspan, Marvin M. Stark   +3 more
openaire   +3 more sources

An In Vitro Assessment of Iodoform Gutta-Percha

Journal of Endodontics, 2005
The purpose of this study was to test the ability of a commercially available iodoform gutta-percha, to delay infiltration of Enterococcus faecalis using a microleakage model. Seventy extracted single-rooted teeth were decoronated and biomechanically prepared using hand and rotary instruments.
Andre Mickel, S. Kirk Huffaker, Benjamin Neibaur, Sami Chogle   +3 more
openaire   +3 more sources

Dimensional stability of thermosensitive gutta-percha

Journal of Endodontics, 1997
The expansion and shrinkage of four commercial brands of endodontic thermosensitive gutta-percha were evaluated. A modified volume dilatometry technique was used; the dilatometric system (DS) consisted of Pyrex glass capillary tubes and a specimen chamber. Each sample was weighed to 10(-4) mg, placed in the specimen chamber, and subjected to vacuum for
Charles Lee, Youngjune Chang, S.J. Robinson, Eckhard M. Hellmuth, Charles M. Cobb   +4 more
openaire   +2 more sources

Gutta-percha solvents—a comparative study

Journal of Endodontics, 1986
Gutta-percha solvents are used for both root canal filling and removal of root canal filling materials. A method is presented in which four gutta-percha solvents (chloroform, xylene, Endosolv-E, and orange terpenes) were compared for their effect on three brands of gutta-percha.
M. Rosenberg, U. Unger, Z. Metzger, A. Tamse   +3 more
openaire   +3 more sources