Sjögren JJ, et al. - Researchers investigated 550 patients with 1256 root-filled teeth who regularly attending the Public Dental Service in Örebro County, Sweden for the frequency and characteristics of pain and discomfort associated with root-filled teeth in addition to assessing the association between symptoms and clinical and radiographic findings and exploring how pain and discomfort from root filled teeth impact daily life. Pain or discomfort was reported by 53 patients (9.6%) from 62 (4.9%) root filled teeth. The pain was noted in significant correlation to lower age, percussion tenderness, and apical tenderness. The pain was noted to be of mild intensity, >2 years of duration and had a low impact on daily life.