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A selection of abstracts of clinically relevant papers from other journals. The abstracts on this page have been chosen and edited by John R. Radford. ABSTRACT This _Critical Issues_ edition

is a rigorous exploration of contemporary and apposite periodontal research and treatment. MAIN Preshaw PM. _Periodontol 2000_, 2012: 59: 7–13 This is a commentary on the 11 papers that

comprise this edition of the journal. Two papers describe surgical techniques used to treat recession defects. The use of collagen membranes is recommended in order to avoid problems

associated with harvesting donor tissue. In the substantive paper, some illustrations show the use of a bone graft combined with a collagen membrane. Another paper explores the continuing

conundrum of osteoporosis and periodontal disease, but now overlaid by implant therapy and bisphosphonates drug therapy. It would not qualify as a _Critical Issues_ edition, if there was not

a paper on periodontal regeneration, the 'holy grail' of periodontal treatment. Other papers examine research methodology. Apart from highlighting the usual problems associated

with randomisation, the pertinent ethical question is asked 'but what about the patients who participate in them (RCTs)?' RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS

ARTICLE CITE THIS ARTICLE Critical issues in clinical periodontal research. _Br Dent J_ 213, 397 (2012). https://doi.org/10.1038/sj.bdj.2012.956 Download citation * Published: 26 October

2012 * Issue Date: 27 October 2012 * DOI: https://doi.org/10.1038/sj.bdj.2012.956 SHARE THIS ARTICLE Anyone you share the following link with will be able to read this content: Get shareable

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