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SEM and microCT validation for en face OCT imagistic evaluation of endodontically treated human teeth

Negrutiu, Meda L. and Nica, Luminita and Sinescu, Cosmin and Topala, Florin and Ionita, Ciprian and Bradu, Adrian and Petrescu, Emanuela L. and Pop, Daniela M. and Rominu, Mihai and Podoleanu, Adrian Gh. (2011) SEM and microCT validation for en face OCT imagistic evaluation of endodontically treated human teeth. In: Medical Imaging 2011: Physics of Medical Imaging. Proceedings of SPIE . SPIE. ISBN 978-0-8194-8503-8. (doi:10.1117/12.878320) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
http://dx.doi.org/10.1117/12.878320

Abstract

Successful root canal treatment is based on diagnosis, treatment planning, knowledge of tooth anatomy, endodontic access cavity design, controlling the infection by thorough cleaning and shaping, methods and materials used in root canal obturation. An endodontic obturation must be a complete, three-dimensional filling of the root canal system, as close as possible to cemento-dentinal junction, without massive overfilling or underfilling. There are several known methods which are used to assess the quality of the endodontic sealing, but most are invasive. These lead to the destruction of the samples and often no conclusion could be drawn in respect to the existence of any microleakage in the investigated areas of interest. Using an time domain en-face OCT system, we have recently demonstrated real time thorough evaluation of quality of root canal fillings. The purpose of this in vitro study was to validate the en face OCT imagistic evaluation of endodontically treated human teeth by using scanning electron microscopy (SEM) and microcomputer tomography (μCT). SEM investigations evidenced the nonlinear aspect of the interface between the endodontic filling material and the root canal walls and materials defects in some samples. The results obtained by μCT revealed also some defects inside the root-canal filling and at the interfaces between the material and the root canal walls. The advantages of the OCT method consist in non-invasiveness and high resolution. In addition, en face OCT investigations permit visualization of the more complex stratified structure at the interface between the filling material and the dental hard tissue.

Item Type: Book section
DOI/Identification number: 10.1117/12.878320
Uncontrolled keywords: apical sealing, en face optical coherence tomography, microcomputer tomography, root canal filling evaluation, scanning electron microscopy,
Subjects: Q Science > QC Physics
R Medicine > R Medicine (General) > R857.O6 Optical coherence tomography
R Medicine > RK Dentistry
Divisions: Faculties > Sciences > School of Physical Sciences > Applied Optics Group
Depositing User: Giles Tarver
Date Deposited: 16 Jul 2015 13:45 UTC
Last Modified: 26 Jul 2019 10:58 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49412 (The current URI for this page, for reference purposes)
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