* Department of Periodontics, University of Pennsylvania School of Dental Medicine, Philadelphia, PA.
† Department of Periodontology and Dental Implantology, Temple University School of Dentistry, Philadelphia, PA.
‡ Department of Dental Medicine, Dental Implant Center, Albert Einstein Medical Center, Philadelphia, PA.
x Privatepractice, Periodonticsand Dental Implants,Philadelphia,PA.
Clinical Advances in Periodontics, Vol. 3, No. 2, May 2013