Results 221 to 230 of about 23,437 (250)

The thermomechanical properties of gutta-percha

Oral Surgery, Oral Medicine, Oral Pathology, 1974
Thesis (M.Sc.D.)--Boston University School of Graduate Dentistry, Dept. of Endodontics, 1973.
Herbert Schilder   +2 more
openaire   +7 more sources

The sterilization of gutta‐percha points

Australian Dental Journal, 1975
Abstract— The traditional methods employed for the sterilization of gutta‐percha points are unsatisfactory. The use of propylene oxide for this purpose is described and experimental evidence is advanced to support this use.
S Faine, E H Ehrmann, A Boquest
openaire   +3 more sources

Physical measurements on gutta-percha

Oral Surgery, Oral Medicine, Oral Pathology, 1971
Abstract Various physical measurements have been made on gutta-percha, including changes in hardness with temperature, linear expansion with increasing temperature, expansion from soaking in water, and tip-thrust values of endodontic gutta-percha points at various temperatures.
E.J. Best, G. Gervasio, B.F. Gurney
openaire   +3 more sources

A new gutta-percha technique

Journal of Endodontics, 1978
A sealer, stainless steel files, and thermally plasticized gutta-percha were used in a filling technique to obtain a three-dimensional obturation of the root canal system. The technique eliminates the fitting of a master cone and does not require the special skills that are needed in other techniques for the apical placement of master cones.
openaire   +3 more sources

Effect of moisture and aging on gutta-percha

Journal of Endodontics, 1992
The purpose of this article was to study the plasticizing effect of controlled levels of different humidities on native and commercial gutta-percha samples. It was expected that the results might provide the practicing endodontist with invaluable insight into the mechanical properties of commercial gutta-percha cones (i.e. retrievability, malleability,
Ioannis Arvanitoyannis   +3 more
openaire   +2 more sources

Crystal Structures of Gutta Percha [PDF]

open access: possibleProceedings of the Physical Society. Section B, 1953
Thin films of gutta percha have been examined by means of electron diffraction, and shown to exist in three distinct crystalline forms, termed the α, β and γ modifications, whereas prior to this work only two forms had been recognized. The conditions necessary for the occurrrence of the different forms are considered and probable unit cells are ...
openaire   +1 more source

Variability Of Master Gutta‐Percha Cones

Australian Endodontic Journal, 2002
AbstractThe common technique to hermetically fill prepared root canals involves the use of “standardised” guttapercha cones that are selected to fit the apical portion of the prepared canal space. These guttapercha cones are manufactured to conform to a standard size and taper which should correspond to the size and taper of standard root canal ...
Moule, Alex J.   +7 more
openaire   +4 more sources

Evaluation of gutta-percha solvents

Journal of Endodontics, 1990
Five solvents (rectified white turpentine, oil of melaleuca, eucalyptol, white pine oil, and pine needle oil) were compared with chloroform for their ability to dissolve gutta-percha. All solvents dissolved at least 50% of the gutta-percha in 15 min at 37 degrees C with chloroform and rectified white turpentine dissolving the gutta-percha completely.
openaire   +3 more sources

Gutta percha obturation techniques

Clinical Techniques in Small Animal Practice, 2001
T h e most common cause of endodontic failure has been ascribed to incomplete obturation. Filling a root canal is intended to prevent microorganisms and toxins in the canal, as well as those present in the oral cavity, from passing along the root canal and moving out into the periradicular tissues. Matsumiya and Kitamura both demonstrated that bacteria
openaire   +3 more sources

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