CASE REPORT OF AN AVULSED AND REIMPLANTED CENTRAL INCISOR

Aim: trauma involving the dento-alveolar region represent a frequent emergency in children and young adults in dentistry. Among others, one of the most serious issues is avulsion of permanent teeth, which stands for 0.5-16% of all dental injures. Nowadays the treatment of choice is represented by reimplantation of avulsed teeth but it also constitutes a major challenge in terms of long-term prognosis. The aim of this study is the clinical management of external root resorption of an avulsed and reimplanted maxillary central incisor. Methods: a 9-year-old boy reported uncomplicated crown fracture and avulsion of tooth 11 and complicated crown fracture of tooth 21 due to trauma. Element 11 was reimplanted within 30 minutes after trauma. Three days later, both elements were diagnosed with pulpal necrosis and tooth 11 showed early external root resorption. Both teeth were endodontically treated and root canal filling was performed with apical plugs using calcium-silicate-cement that promotes deposition of mineralized tissue that inhibits the progression of resorption. Results: at 6 months follow-up, root resorption appeared to have ceased. Clinical results 24 months after trauma were stable although signs and symptoms of ankylosis were observed. Conclusions: in case of avulsed and reimplanted central incisor, immediate endodontic treatment and the use of calcium- silicate-cement after 24 months of follow-up appeared to inhibit the progression of root resorption.