IJSR International Journal of Scientific Research 2277 - 8179 Indian Society for Health and Advanced Research ijsr-10-7-35846 Original Research Paper A COMPARATIVE RETROSPECTIVE STUDY TO EVALUATE THE IMPACT OF COVID 19 ON DENTAL OPD IN CHHATTISGARH INSTITUTE OF MEDICAL SCIENCES, BILASPUR, CHHATTISGARH. Rajmani Dr. Prakash Khare Dr. Ketaki Kinikar Dr. July 2021 10 7 01 02 ABSTRACT