Optical coherence tomography-based 3D intraoral scanner

Joo Beom Eom; Jonghyun Eom; Anjin Park; Jin-Chul Ahn

doi:10.1117/12.2524585

19 July 2019 Optical coherence tomography-based 3D intraoral scanner

Joo Beom Eom, Jonghyun Eom, Anjin Park, Jin-Chul Ahn

Proceedings Volume 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III; 1107823 (2019) https://doi.org/10.1117/12.2524585
Event: European Conferences on Biomedical Optics, 2019, Munich, Germany

Abstract

We report fabrication and performance of the three-dimensional intraoral scanner based on optical coherence tomography (OCT) that enables three-dimensional structure images of tooth and diagnosis of the tooth through OCT images. The OCT system was configured the swept source OCT (SS-OCT), that is based on the swept source with center wavelength of 1310 nm, the scanner was built using MEMs mirror and optical collimator. The implemented SS-OCT based on MEMs scanner show axial resolution of 10 μm, scan length of 10 mm. With OCT system, OCT 2D images of the human tooth obtained by intraoral scanner based on OCT system. 3D OCT image of the human tooth was obtained by combining the 500 2D OCT images and also included internal information and structure of the human tooth. 3D images of a human tooth obtained were sequentially stitching using the iterative closet point (ICP). By equipping the implemented SS-OCT system with MEMs probe and using ICP algorithm, the intraoral scanner based on OCT system was constructed and used to demonstrate the feasibility of intraoral scanner, that is able to acquire the structure and function images of the human tooth, for intraoral scanner 3D image in dentistry.

Citation Download Citation

Joo Beom Eom, Jonghyun Eom, Anjin Park, and Jin-Chul Ahn "Optical coherence tomography-based 3D intraoral scanner", Proc. SPIE 11078, Optical Coherence Imaging Techniques and Imaging in Scattering Media III, 1107823 (19 July 2019); https://doi.org/10.1117/12.2524585

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KEYWORDS

3D scanning

Laser scanners

3D image processing

Optical coherence tomography

Teeth

3D modeling

Scanners

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