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

Here, we report a 4-year clinical follow-up of leakage of calcium hydroxide paste into the mandible during endodontic treatment. 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.