Acta Optica Sinica, Volume. 39, Issue 8, 0811002(2019)
Detection of Dental Root Fractures Based on Endoscopic Swept Source Optical Coherence Tomography
The diagnosis and treatment of root fractures are difficult issues in dentistry. A three-dimensional swept source optical coherence tomography (OCT) system was constructed. Utilizing cardiovascular endoscopic imaging catheter, we imaged 46 root section samples with root fractures(width ranges from 8 μm to 283 μm). The results show that the system has a diagnostic accuracy as good as 98.3% when the width of root fractures is greater than 30 μm. The diagnostic accuracy is 36.3% for fractures smaller than 30 μm. For the 25 fracture-free samples, the accuracy is 92%. Further analysis suggests optimization of the relative position and angle between the catheter and sample sections, as well as 3D reconstruction of images. These improvements achieve 100% accuracy for above-30 μm fractures and 57.6% accuracy for below-30 μm ones. This experiment suggests a promising future for the application of endoscopic OCT in the diagnosis of dental root fractures.
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Wei Sun, Jianan Li, Liyuan Qi, Rui Zhu, Yuhong Liang, Lei Mi. Detection of Dental Root Fractures Based on Endoscopic Swept Source Optical Coherence Tomography[J]. Acta Optica Sinica, 2019, 39(8): 0811002
Category: Imaging Systems
Received: Mar. 4, 2019
Accepted: May. 5, 2019
Published Online: Aug. 7, 2019
The Author Email: Mi Lei (millay@126.com)