Eric Linden, DMD, MSD, is a periodontist with more than 30 years of clinical experience, and a laser periodontal surgeon in private practice in New York. He is a professor of periodontics, implants, and oral medicine at Columbia University in New York. Linden directs several clinical trials assessing the effectiveness of laser treatment around failing implants. He serves on the American Academy of Periodontology Committee on Peri-Implantitis. In addition, he trains faculty, residents and dentists in various laser therapies. He can be reached at drericlinden@drgums.com.