Double blind, Split mouth, randomized clinical trial of evaluation of postoperative pain associated with and without apical clearing technique

Ganesh Jadhav, Priya Mittal, Amol Kamble, Shweta Jajoo, Rohan Shah, Sneha Desai, Chetana Jagtap, Dipali Shah



The study evaluated the incidence and intensity of pain following conventional apical preparation (CAP) and apical clearing technique (ACT) in mandibular molars with necrotic pulp and apical periodontitis. 20 subjects with 40 teeth were divided into two groups based on the type of apical preparation as group I and group II. For group I, apical preparation three sizes larger [Master Apical File (MAF)] than the first apical binding file was performed. For group II, apical preparation three sizes larger than that MAF was done, followed by dry reaming. Patients were instructed to record their pain between 1st to7th days. Data was statistically analyzed using Mann Whitney, Chi Square and z tests. Apical clearing technique was associated with post-endodontic pain and required higher dosages of analgesic only at 24 hrs. However from the 2nd day, there was no difference in any of these factors.

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