Evaluation of the Effect of Saffron (Crocus Sativus) on Pain Control After Root Canal Therapy in Teeth With Vital Pulps

Among patients refer to endodontics department of Zahedan Faculty of Dentistry whom with moderate to severe pain in a single canal tooth will be selected and randomly divided in 2 groups of saffron and placebo. After root canal therapy each patient in each group will receive a box of 8 similar capsules. They will use 1 capsule exactly after treatment completion and then each 6 hours up to 48 hours. Patients will record their pain intensity in each time period according to Visual Analog Scale(VAS)and finally mean pain intensity will be compared between 2 groups.