Periodontology class was taken by Dr. John Kazimm at AHEAD Academy, New Delhi. The topic of discussion was ‘Furcation’. It was attended by students preparing for NBDE, NDEB, USA and MDS. The etiologies of furcation involvement may include anatomic factors, extension of inflammatory periodontal disease, trauma from occlusion, pulpo-periodontal disease and root fracture involving furcations. Successful treatment to retain furcation-involved teeth remains one of the most difficult treatments in overall periodontal therapy. Using the treatment protocol of scaling & root planning as a single measure or combined with surgical procedures and proper maintenance care, in multirooted teeth with furcation involvement, a high percentage of tooth mortality has been reported.