Corresponding Author

Department of Periodontology, U.F.R. d’Odontologie-Garanciere, Université de Paris, Paris, France

Department of Periodontology, Service d’Odontologie, AP-HP, Rothschild Hospital, Paris, France

Inserm, Population-based Epidemiologic Cohorts Unit, UMS 011, Villejuif, France

Correspondence

Maria Clotilde Carra and Philippe Bouchard, U.F.R. d’Odontologie-Garanciere, Department of Periodontology, Service of Odontology, Rothschild Hospital, Université de Paris, AP-HP, 5 rue Santerre, 75012, Paris France.

Emails: mclotildecarra@gmail.com and philippe.bouchard.perio@gmail.com