Prevention and management of post-endodontic pain (PEP) is an integral part of endodontic treatment. Mechanical factors, including over instrumentation or extrusion of root-filling materials, have been associated to the presence of postoperative pain, suggesting that root canal instrumentation and obturation techniques may influence postoperative pain. Hence; the present study was undertaken for assessing various parameters associated with Postoperative Pain in patients undergoing root canal therapy.
Materials & methods: A total of 200 patients who underwent endodontic therapy were enrolled. Patients who underwent root canal therapy of third molars were excluded. Root canal therapy was performed in all the patients under local anesthesia. After completing of obturation, patients were recalled after one week and postoperative radiographs were taken. Radiographic length of root canal filling and sealer extrusion was recorded. All the patients were instructed to mark the presence of pain on a 10 cm long visual analogue scale (VAS) for recording postoperative pain. On this scale, 0 indicated no pain and score of 10 indicated unbearable pain.
Results: None to mild postoperative endodontic pain as found to be present in 161 patients while moderate to unbearable pain was found to be present in 39 patients. Among these 39 patients, 25 patients were males while the remaining were females. Among 39 patients with moderate to unbearable pain, mandibular molar was involved in 18 cases, while maxillary molar was involved in 9 cases. In 23 patients out of 39 patients (with moderate to unbearable pain), preoperative symptoms were present while in remaining 16 cases, patients were asymptomatic during the pre-operative time.
Conclusion: Post-treatment endodontic pain was significantly higher in females, in mandibular molars and in patients with presence of pre-treatment symptoms. However; further studies are recommended.