Department of Molecular Biology, Federal Fluminense University, Niterói, Rio de Janeiro, Brazil.
Dent Traumatol. 2010 Dec;26(6):505-8. doi: 10.1111/j.1600-9657.2010.00923.x.
This case report describes the management of developmental dental alterations in permanent dentition as a consequence of severe intrusive luxation in its predecessors in a child of 2 years. At 10 years of age, this patient was referred for consultation due to lack of permanent maxillary right central and lateral incisors. Radiographic examination revealed impaction of hypoplasic permanent maxillary central incisor, absence of the lateral incisor and compound odontoma in region of the permanent maxillary lateral incisor. The odontoma was surgically removed and unerupted central incisor was placed in orthodontic traction over a period of 8 months. The central incisor presented with abnormal shape and was restored with composite resin. Odontoma histologic analysis was carried out through Hematoxylin and Eosin coloration and Scanning Electron Microscopy. Cement and osteocement formations were found in soft tissue, as well as some irregularly distributed dentine islands of tooth-like structures, indicative of compound odontoma. We followed up this patient for 5 years and orthodontic management was successfully performed for correct alignment of the maxillary right central incisor impacted by compound odontoma.
本病例报告描述了一名 2 岁儿童因前牙严重嵌入性脱位而导致恒牙发育性牙齿改变的处理方法。10 岁时，该患者因上颌右侧恒中切牙和侧切牙缺失而就诊。影像学检查显示上颌恒中切牙发育不良、侧切牙缺失以及上颌恒侧切牙区复合牙瘤。牙瘤被手术切除，未萌出的中切牙通过正畸牵引 8 个月。中切牙形状异常，用复合树脂修复。通过苏木精-伊红染色和扫描电子显微镜对牙瘤进行了组织学分析。在软组织中发现了牙骨质和骨牙骨质形成，以及一些不规则分布的牙本质岛状牙样结构，提示为复合牙瘤。我们对该患者进行了 5 年的随访，成功地进行了正畸治疗，以对齐受复合牙瘤影响的上颌右侧中切牙。
