Dr. Rojo Xicart presented a conference at the VII Actualización en Odontología celebrated 3th and 4th October 3 at the College of Dentistry and Stomatology of Catalonia (COEC). It is an annual meeting where various issues related to all dental disciplines of dentistry are presented. Is a congres attended by dentists and auxiliary staff. The conference was titled: Mechanical and chemical control of biofilm in periodontitis and periimplantitis. Rojo E., Clusellas M. and it was related on how we can maintain oral health in patients suffering from periodontal disease and / or those patients with dental implants.