Periodontitis is becoming a highly prevalent disease globally. Daytime Somnolence which is a key symptom of Obstructive sleep apnea, is a common disorder and is characterized by repeated collapse of breathing during sleep time. Periodontal diseases have been related to cardiovascular diseases, obesity, rheumatoid arthritis, diabetes mellitus and obstructive sleep apnea due to shared inflammatory pathways. It has been found that periodontal diseases may increase in severity in subjects exhibiting Daytime Somnolence. The aim of the present study was to find out the co-relation between daytime...