Nondestructive observation of teeth post core-space using optical coherence tomography: comparison with microcomputed tomography and live images
| Autor: | Atsushi Mine, Yoshihiko Sugawa, Masato Ohmi, Takuya Minamino, Mami Higashi, Asuka Kawaguchi, Hirofumi Yatani, Mariko Matsumoto, Tomoshige Kabetani, Kunio Awazu |
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| Rok vydání: | 2015 |
| Předmět: |
Materials science
Root canal Biomedical Engineering In Vitro Techniques Signal Biomaterials Light curing Optics Optical coherence tomography Nondestructive testing medicine Radiography Dental Humans Dental Pulp Cavity medicine.diagnostic_test business.industry Microcomputed tomography Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Core (optical fiber) medicine.anatomical_structure sense organs business Tomography X-Ray Computed Tomography Optical Coherence Post and Core Technique |
| Zdroj: | Journal of biomedical optics. 20(10) |
| ISSN: | 1560-2281 |
| Popis: | No previous reports have observed inside the root canal using both optical coherence tomography (OCT) and x-ray microcomputed tomography (μCT) for the same sample. The purpose of this study was to clarify both OCT and μCT image properties from observations of the same root canal after resin core build-up treatment. As OCT allows real-time observation of samples, gap formation may be able to be shown in real time. A dual-cure, one-step, self-etch adhesive system bonding agent, and dual-cure resin composite core material were used in root canals in accordance with instructions from the manufacturer. The resulting OCT images were superior for identifying gap formation at the interface, while μCT images were better to grasp the tooth form. Continuous tomographic images from real-time OCT observation allowed successful construction of a video of the resin core build-up procedure. After 10 to 12 s of light curing, a gap with a clear new signal occurred at the root-core material interface, proceeding from the coronal side (6 mm from the cemento-enamel junction) to the apical side of the root. |
| Databáze: | OpenAIRE |
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