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Imagistic evaluation of direct dental restoration: En face OCT versus SEM and microCT

Negruţiu, Meda L. and Sinescu, Cosmin and Topala, Florin and Ionita, Ciprian and Marcauteanu, Corina and Petrescu, Emanuela L. and Podoleanu, Adrian Gh. (2011) Imagistic evaluation of direct dental restoration: En face OCT versus SEM and microCT. In: Optical Coherence Tomography and Coherence Techniques V. Proceedings of SPIE . SPIE. ISBN 978-0-8194-8688-2. (doi:10.1117/12.890021) (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/10.1117/12.890021

Abstract

There are several methods known which are used to assess the quality of direct dental restorations, but most of them are invasive. These lead to the destruction of the probes and often no conclusion could be drawn in respect to the existence of any microleakage in the investigated areas of interest. Optical tomographic techniques are of particular importance in the medical imaging field, because these techniques can provide non-invasive diagnostic images. Using an en-face version of OCT, we have recently demonstrated real time thorough evaluation of quality of dental fillings. The purpose of this in vitro study was to validate the en face OCT imagistic evaluation of direct dental restoration by using scanning electron microscopy (SEM) and microcomputer tomography (μCT). Teeth after several treatment methods are imaged in order to detect material defects and to asses the marginal adaptation at the dental hard tissue walls. SEM investigations evidenced the nonlinear aspect of the interface between the filling material and the buccal and lingual walls in some samples. The results obtained by μCT revealed also some material defects inside the fillings and at the interfaces with the rootcanal walls. The advantages of the OCT method consist in non-invasiveness and high resolution. En face OCT investigations permit to visualize a more complex stratificated structure at the interface filling material/dental hard tissue and in the apical region.

Item Type: Book section
DOI/Identification number: 10.1117/12.890021
Uncontrolled keywords: direct dental restoration, en face optical coherence tomography, imagistic evaluation, microcomputer tomography, scanning electron microscopy, Dental restorations, en face optical coherence tomography, imagistic evaluation, microcomputer tomography, Scanning electrons, Computers, Defects, Dental prostheses, Filling, Interfaces (materials), Investments, Medical imaging, Microcomputers, Quality control, Restoration, Scanning electron microscopy, Tissue, Tomography, Computerized tomography
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 13:36 UTC
Last Modified: 26 Jul 2019 10:59 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/49407 (The current URI for this page, for reference purposes)
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