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. 2014 Nov 28;10:51. doi: 10.1186/1746-160X-10-51

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© Reicheneder et al.; licensee BioMed Central Ltd. 2014

This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), 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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Shear bond strengths (SBS) of the retainer-adhesive-combinations tested with and without prior sandblasting. Boxplots show median and interquartile range while whiskers denote the data range. ° outliers (>1.5 x IQR beyond upper/lower quartile); * extreme values (>3 x IQR beyond upper/lower quartile).