Effect of Chinese Propolis as an Inter-appointment Intracanal Medicament on Post-instrumentation Pain: A Double Blind Randomized Controlled Trial

The aim of this trial was to compare the effect of Propolis (paste) with calcium hydroxide paste on post-instrumentation pain intensity in necrotic teeth with periapical pathosis at different time intervals. The null hypothesis was that there would be no difference of pain severity between the two medicament groups. This is raw unprocessed data. This data was collected by using Visual Analogue Scale Form. It shows the characteristics of the study population and the pain scores recorded by the patients at different time intervals In this study, 12/68 patients lost to follow up. so post-instrumentation pain scores of those patients at different time intervals is empty