About the Author: Tord Berglundh is Professor and Chair of Periodontology at the Institute of Odontology, University of Gothenburg, Sweden.
William V. Giannobile is Dean and Professor of Oral Medicine, Infection, and Immunity at the Harvard School of Dental Medicine, Boston, USA.
Niklaus P. Lang is Honorary Professor at the University of Hong Kong, the University College London, the University of Zurich, Switzerland, and Complutense University of Madrid, Spain, and Professor Emeritus at the University of Bern, Switzerland.
Mariano Sanz is Professor and Chair of Periodontology at the Faculty of Odontology, Complutense University of Madrid, Spain, and Professor Type II at the Institute of Odontology, University of Oslo, Norway.
