An autoradiographic anaylsis of the endodontic hermetic seal
Date
1980
DOI
Authors
Acheson, Donald Wayne
Version
OA Version
Citation
Abstract
The three dimensional hermetic seal - what is it? What is it composed of? how do we obtain one? whatis it’s purpose and why do we strive to achieve this ever elusive seal?
These questions and paraphrases were the “in vogue style” of many practitioners and investigators who were accustomed to the removal, of what were thoughtto be hollow intraradicular chambers, from the rest of the human biological system via an assortmentof means and methods. Through a review and assessment of today's standards we have come a long way. Today’s authorities in the field of endodontics have placed an unheralded value on the three dimensional hermetic seal. They consider the hermetic seal to be of paramount and intrinsic importance to the success or failure of modern root canal therapy. [1,2,3]
The more accepted and utilized endodontic techniques today, use a core material plus a viscous sealing agent. Each technique, in its own formidable fashion, attempts to create the perfect three dimensional hermetic seal, with the majority of this seal consisting of a non-resorbable core material, usually gutta percha. Even though the seal may be comprised of 99.99% of a non-resorbable material, it is still, without a doubt, dependent on a thin film of sealer, which hopefully adheres to both the dentinal wall and the mass of gutta percha, thereby creating the perfect hermetic seal.
Again, what is the hermetic seal? – will it suffice for it to be air tight alone?- or, will some new technological idea or device cause institution of new standards, rewording of old definitions and rethinking of yesterday’s ideas and ideals.
It is the intent of this study to show the relative effectiveness the various endodontic techniques have in molding the core – sealer interface into assuming the functionally perfect three dimensional hermetic seal. An assessment and determination of the relative dependency each of the accepted endodontic methods place upon the sealer – dentinal wall interface, will also be realized. Essentially an attempt will be made to provide some insight into Grossman’s statement in which he gives issue as to whether the cementing medium should be viewed as a luting agent, similar to the cementation of an inlay, or perhaps as the filling material proper of the root canal system where the main core material simply acts as a conveyor of the cement sealer.
Description
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Colored and black and white photographs also included.
Thesis (M.Sc.D.)--Boston University, Goldman School of Graduate Dentistry (Endodontics), 1980.
Bibiography: leaves 237-261.
Colored and black and white photographs also included.
Thesis (M.Sc.D.)--Boston University, Goldman School of Graduate Dentistry (Endodontics), 1980.
Bibiography: leaves 237-261.
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.