Controversy is a state of prolonged public dispute or debate, usually concerning a matter of conflicting opinion or point of view.Even though controversies arise side by side and in controversy, one often ends up where one started, they facilitate our better understanding of periodontal diseases and developing targeted interventions. The current challenge of periodontist is to disentangle the controversies existing in classification of periodontal diseases.

I, Asma Usmani 2nd year post graduate from Department of Periodontology,Subharti Dental College,Meerut. I have done my BDS from Subharti Dental College,Meerut.