Abstract
Cone-beam computed tomography and clinical examinations including pulp vital testing and pocket probing depth showed a cemental tear with a severe labial alveolar bony defect, but no endodontic lesions in #25, which had a sinus tract at the labial site, in a 75-year-old woman. This cemental tear was diagnosed as Class 3/Stage C based on the classification by Lee et al., 2021. Recombinant human fibroblast growth factor-2 as a regenerative agent was then applied into the bone defect after removing cemental fragments and inflamed granulomatous tissue containing bacterial colonies. The labial bone defect was regenerated to the position of the crest of lingual bone, showing successful clinical and radiographic outcomes at 2-year follow-up.
Keywords: cemental tear; recombinant human fibroblast growth factor-2; periodontal regeneration therapy