Akitomo Tatsuya, Hamaguchi Shuma, Mitsuhata Chieko, Nomura Ryota
Department of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima 734-8553, Japan.
Reports (MDPI). 2025 Feb 26;8(1):27. doi: 10.3390/reports8010027.
Tooth ankylosis is a serious complication that can occur because of the replantation of an avulsed tooth. However, few reports have investigated the follow-up of replanted or ankylosed primary incisors because the replantation of primary teeth is not recommended in the guidelines of the International Association of Dental Traumatology. A boy aged 4 years and 8 months was referred to hospital for further evaluation of the maxillary right primary central incisor. It had been avulsed and replanted 2 years earlier. The tooth was positioned higher than the central incisor on the left side, and a metallic percussion sound was noted, leading to a diagnosis of tooth ankylosis. Long-term follow-up revealed the progression of ankylosis, and the tooth was finally extracted. At the age of 7 years and 6 months, permanent tooth eruption was detected, and no pathological finding was observed. In this case, root resorption of the replanted primary incisor was observed with age, but tooth ankylosis progressed, and natural exfoliation was difficult. The authors extracted the primary incisor appropriately, which aided the eruption of a successor permanent tooth. This report suggests the importance of patients visiting the dentist regularly after trauma to primary teeth and appropriate treatment by dentists to erupt the permanent teeth.
牙齿粘连是一种可能因脱位牙再植而发生的严重并发症。然而，由于国际牙外伤协会的指南不建议乳牙再植，很少有报告对再植或粘连的乳切牙进行随访。一名4岁8个月的男孩因上颌右侧乳中切牙需要进一步评估而被转诊至医院。该牙于2年前脱位并再植。该牙位置高于左侧中切牙，且有金属叩诊音，诊断为牙齿粘连。长期随访显示粘连进展，最终该牙被拔除。在7岁6个月时，发现恒牙萌出，未观察到病理改变。在本病例中，随着年龄增长观察到再植乳切牙的牙根吸收，但牙齿粘连进展，自然脱落困难。作者适当拔除了乳切牙，这有助于后继恒牙的萌出。本报告提示乳牙外伤后患者定期看牙医以及牙医进行适当治疗以促进恒牙萌出的重要性。
