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. 2019 Mar 29;41(1):13. doi: 10.1186/s40902-019-0196-2

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© The Author(s). 2019

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 9 — Pan-sinusitis on both paranasal sinuses originating from the root infection of the right first molar. Preoperative panoramic view (a), Water’s view (b), axial CT scan view showing sinusitis of both maxillary sinuses (c), coronal CT scan view showing whole sinusitis including both ethmoidal and frontal sinuses (d), and sagittal CT scan view showing involvement of the root pathologic lesion of the right first molar (e)