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. 2017 Jul 14;7:5431. doi: 10.1038/s41598-017-05417-7

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© The Author(s) 2017

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as 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. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Three corner points of the chin segment were digitized on both planned and postoperative models to define the position and orientation of the chin segment. The landmarks utilized were: the pogonion (Point 1) and bilateral corner point on the buccal surface of the chin segment (Point 2 and Point 3). The landmarks on the planned models were marked in red, and the landmarks on the postoperative models were marked in blue. The planned models were showed in blue, and the postoperative models were showed in yellow.