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Proceedings Paper

Optical coherence tomography for endodontic imaging
Author(s): G. van Soest; H. Shemesh; M.-K. Wu; L. W. M. van der Sluis; P. R. Wesselink
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Paper Abstract

In root canal therapy, complications frequently arise as a result of root fracture or imperfect cleaning of fins and invaginations. To date, there is no imaging method for nondestructive in vivo evaluation of the condition of the root canal, during or after treatment. There is a clinical need for a technique to detect defects before they give rise to complications. In this study we evaluate the ability of optical coherence tomography (OCT) to image root canal walls, and its capacity to identify complicating factors in root canal treatment. While the potential of OCT to identify caries has been explored before, endodontic imaging has not been reported. We imaged extracted lower front teeth after endodontic preparation and correlated these images to histological sections. A 3D OCT pullback scan was made with an endoscopic rotating optical fiber probe inside the root canal. All oval canals, uncleaned fins, risk zones, and one perforation that were detected by histology were also imaged by OCT. As an example of an area where OCT has clinical potential, we present a study of vertical root fracture identification with OCT.

Paper Details

Date Published: 11 February 2008
PDF: 8 pages
Proc. SPIE 6843, Lasers in Dentistry XIV, 68430F (11 February 2008); doi: 10.1117/12.761196
Show Author Affiliations
G. van Soest, Erasmus Univ. Medical Ctr. (Netherlands)
H. Shemesh, Academic Ctr. for Dentistry Amsterdam (Netherlands)
M.-K. Wu, Academic Ctr. for Dentistry Amsterdam (Netherlands)
L. W. M. van der Sluis, Academic Ctr. for Dentistry Amsterdam (Netherlands)
P. R. Wesselink, Academic Ctr. for Dentistry Amsterdam (Netherlands)

Published in SPIE Proceedings Vol. 6843:
Lasers in Dentistry XIV
Peter Rechmann; Daniel Fried, Editor(s)

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