Dr. Pardiñas López participated in the 99th annual meeting of the American Academy of Periodontology. The meeting took place in Philadelphia from Septermber 29th to October 1st 2013. Hundreds of Periodontists both from the US and internationally attended. Dr. Pardiñas López, in collaboration with Drs. Ismael Khouly and Stuart Froum from the New York University, presented a clinical poster wich was exposed during the 4-day meeting.