A case of high density abnormality in x-ray findings of mandible caused by leakage of root canal filling paste

Abstract Background Calcium hydroxidepaste is widely used for endodontictreatment as a root canal filling material. However, appropriate filling with that paste at the root apex is difficult because of the properties of the material and tooth root condition. Case report Here, we report a 4-year clinical follow-up of leakage of calcium hydroxidepaste into the mandible during endodontictreatment. The remaining material observed radiologically for 4 years. During that period, 2 adjacent permanent teeth, the first molar and premolar, erupted normally, while radiopaque findings in the mandible bone shown by panoramic x-ray imaging slowly decreased without signs of inflammation.