An investigation into the ability of a solvent containing cement to produce a homogenous mass of gutta percha
Date
1985
DOI
Authors
Marshall, Michael J.
Version
OA Version
Citation
Abstract
The purpose of this study was to determine if the eucalyptol content of Wach's paste, in conjunction with the pressures of lateral condensation, was sufficient to produce a homogenous mass of gutta percha.
Twenty anterior teeth were cleaned and shaped according to a standard technique. The samples were obturated with laterally condensed gutta percha, employing Wach's paste as the sealer.
The teeth were divided into two groups. The six samples in Group 1 were sectioned with a diamond saw, while the fourteen samples in Group 2 were decalcified and sectioned with a razor blade. The cross sections were observed, at 25X magnification, with a light microscope. The samples were visualized before and after the application of Pelikan ink.
The results of the study were as follows:
Observation of the samples in Group 1, in which a rotary diamond saw had been employed to cut the dentin of natural hardness, suggested that a solid mass of gutta percha had been produced.
However, observation of the samples in Group 2, in which the teeth were first decalcified and then easily sectioned with a sharp razor blade, demonstrate explicitly that a homogenous mass of gutta percha was not produced, at any level.
The following conclusions were drawn:
(1) The solvent containing cement, Wach's paste, in conjunction with the pressures of lateral condensation, does not produce a homogenous mass of gutta percha.
(2) The method of sectioning the teeth is critical to the reliability of results.
(3) Wach's paste has a similar color to dental gutta percha, which may add to the false impression of a homogenous mass.
(4) Eucalyptol may not be present in sufficient quantities in Wach's paste to produce a homogenous mass of gutta percha, in combination with the pressures of lateral condensation.
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Contains colored photographs.
Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1985 (Endodontics)
Bibliography : leaves 80-95.
Contains colored photographs.
Thesis (M.Sc.D.)--Boston University, Henry M. Goldman School of Graduate Dentistry, 1985 (Endodontics)
Bibliography : leaves 80-95.
License
This work is protected by copyright. Downloading is restricted to the BU community. If you are the author of this work and would like to make it publicly available, please contact open-help@bu.edu.