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Proceedings Paper

Laser scanning dental probe for endodontic root canal treatment
Author(s): Molly A. B. Blank; Michal Friedrich; Jeffrey D. Hamilton; Peggy Lee; Joel Berg; Eric J. Seibel
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Paper Abstract

Complications that arise during endodontic procedures pose serious threats to the long-term integrity and health of the tooth. Potential complexities of root canals include residual pulpal tissue, cracks, mesial-buccal 2 and accessory canals. In the case of a failed root canal, a successful apicoectomy can be jeopardized by isthmuses, accessory canals, and root microfracture. Confirming diagnosis using a small imaging probe would allow proper treatment and prevent retreatment of endodontic procedures. An ultrathin and flexible laser scanning endoscope of 1.2 to 1.6mm outer diameter was used in vitro to image extracted teeth with varied root configurations. Teeth were opened using a conventional bur and high speed drill. Imaging within the opened access cavity clarified the location of the roots where canal filing would initiate. Although radiographs are commonly used to determine the root canal size, position, and shape, the limited 2D image perspective leaves ambiguity that could be clarified if used in conjunction with a direct visual imaging tool. Direct visualization may avoid difficulties in locating the root canal and reduce the number of radiographs needed. A transillumination imaging device with the separated illumination and light collection functions rendered cracks visible in the prepared teeth that were otherwise indiscernible using reflected visible light. Our work demonstrates that a small diameter endoscope with high spatial resolution may significantly increase the efficiency and success of endodontic procedures.

Paper Details

Date Published: 17 February 2011
PDF: 7 pages
Proc. SPIE 7884, Lasers in Dentistry XVII, 788403 (17 February 2011); doi: 10.1117/12.875274
Show Author Affiliations
Molly A. B. Blank, Univ. of Washington (United States)
Michal Friedrich, Univ. of Washington (United States)
Jeffrey D. Hamilton, Univ. of Washington (United States)
Peggy Lee, Univ. of Washington (United States)
Joel Berg, Univ. of Washington (United States)
Eric J. Seibel, Univ. of Washington (United States)


Published in SPIE Proceedings Vol. 7884:
Lasers in Dentistry XVII
Peter Rechmann; Daniel Fried, Editor(s)

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