
Proceedings Paper
Apices of maxillary premolars observed by swept source optical coherence tomographyFormat | Member Price | Non-Member Price |
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Paper Abstract
Apicoectomy is performed for the management of apical periodontitis when orthograde root canal treatment is not
possible or is ineffective. Prior to the surgery, cone beam computed tomography (CBCT) examination is often performed
to evaluate the lesion and the adjacent tissues. During the surgical procedure, the root apex is resected and the resected
surface is usually observed under dental operating microscope (DOM). However, it is difficult to evaluate the details and
the subsurface structure of the root using CBCT and DOM. A new diagnostic system, swept source optical coherence
tomography (SS-OCT), has been developed to observe the subsurface anatomical structure. The aim of this study was to
observe resected apical root canals of human maxillary premolars using SS-OCT and compare the findings with those
observed using CBCT and DOM. Six extracted human maxillary premolars were used. After microfocus computed
tomography (Micro CT; for gold standard) and CBCT scanning of the root, 1 mm of the apex was cut perpendicular to
the long axis of the tooth. Each resected surface was treated with EDTA, irrigated with saline solution, and stained with
methylene blue dye. The resected surface was observed with DOM and SS-OCT. This sequence was repeated three
times. The number of root canals was counted and statistically evaluated. There was no significant difference in the
accuracy of detecting root canals among CBCT, DOM and SS-OCT (p > 0.05, Wilcoxon test). Because SS-OCT can be
used in real time during surgery, it would be a useful tool for observing resected apical root canals.
Paper Details
Date Published: 24 February 2015
PDF: 5 pages
Proc. SPIE 9306, Lasers in Dentistry XXI, 93060J (24 February 2015); doi: 10.1117/12.2076924
Published in SPIE Proceedings Vol. 9306:
Lasers in Dentistry XXI
Peter Rechmann; Daniel Fried, Editor(s)
PDF: 5 pages
Proc. SPIE 9306, Lasers in Dentistry XXI, 93060J (24 February 2015); doi: 10.1117/12.2076924
Show Author Affiliations
Arata Ebihara D.D.S., Tokyo Medical and Dental Univ. (Japan)
Yoshiko Iino D.D.S., Tokyo Medical and Dental Univ. (Japan)
Toshihiko Yoshioka D.D.S., Tokyo Medical and Dental Univ. (Japan)
Takahiro Hanada D.D.S., Tokyo Medical and Dental Univ. (Japan)
Yoshiko Iino D.D.S., Tokyo Medical and Dental Univ. (Japan)
Toshihiko Yoshioka D.D.S., Tokyo Medical and Dental Univ. (Japan)
Takahiro Hanada D.D.S., Tokyo Medical and Dental Univ. (Japan)
Mitsuhiro Sunakawa D.D.S., Tokyo Medical and Dental Univ. (Japan)
Yasunori Sumi D.D.S., National Ctr. for Geriatrics and Gerontology (Japan)
Hideaki Suda D.D.S., Tokyo Medical and Dental Univ. (Japan)
Yasunori Sumi D.D.S., National Ctr. for Geriatrics and Gerontology (Japan)
Hideaki Suda D.D.S., Tokyo Medical and Dental Univ. (Japan)
Published in SPIE Proceedings Vol. 9306:
Lasers in Dentistry XXI
Peter Rechmann; Daniel Fried, Editor(s)
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