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. 2018 Feb 14;6:29. doi: 10.3389/fpubh.2018.00029

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Copyright © 2018 Northridge, Metcalf, Yi, Zhang, Gu and Trinh-Shevrin.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The burden of oral conditions worldwide as measured by disability adjusted life years lost due to tooth decay and periodontal disease, 2010. Source: Benzian and Williams (1). Printed with permission.