Preserving pulpal health of a geminated maxillary lateral incisor through multidisciplinary care

Aim To report the multidisciplinary care of an unaesthetic geminated maxillary lateral incisor tooth, which allowed its preservation in the mouth. Summary Preoperative examination of an unsightly geminated maxillary lateral incisor (tooth 22) demonstrated two pulp chambers and open apices, with normal pulp sensitivity responses. At surgery, a periodontal mucoperiosteal flap was reflected and the distal part of the geminated tooth was removed. The exposed root canal of the preserved tooth was sealed with mineral trioxide aggregate (MTA). The extraction socket and osseous defect was grafted with decalcified freeze‐dried bone allograft (DFDBA) before flap closure. During follow‐up, distal caries in tooth 22 and a diastema between tooth 22 and 23 were managed with composite resin restorations. Forty‐two months postoperatively, normal thermal and electrical pulp sensitivity tests confirmed pulp health. Convincing apexogenesis and dentinogenesis of the developing root was confirmed by radiographic examination. Acceptable periodontal health including 3–4 mm clinical probing depths was achieved. Optimizing aesthetics and occlusion was accomplished without orthodontic treatment. Key learning points: • Adequate preoperative examination and proper interdisciplinary coordination may be required to successfully treat a geminated tooth. • Mineral trioxide aggregate may effectively seal an exposed pulp chamber and preserve pulp vitality. • MTA and decalcified freeze‐dried bone allograft may support the healing of periodontal tissues.