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. 2014 Feb 7;10:4. doi: 10.1186/1746-160X-10-4

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Copyright © 2014 Lossdörfer et al.; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly credited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Typodont model carrying the WIN appliance with the central upper left incisor separated and the vertical extension for insertion of a spring gauge in situ.