Chen Liren, Ouyang Zhiqiang, Yao Fen
The Affiliated Stomatological Hospital, Jiangxi Medical College, Nanchang University, Nanchang, 330006, China.
Jiangxi Provincial Key Laboratory of Oral Diseases, Nanchang, 330006, China.
BMC Oral Health. 2025 Apr 12;25(1):553. doi: 10.1186/s12903-025-05904-8.
For patients missing the maxillary central incisor in childhood, resorption of the alveolar bone in the area of the missing teeth over time can increase the difficulty of performing later prosthodontic treatments. Early loss of permanent teeth is also one of the main causes of malocclusion. Early and effective space management will have a positive effect on the child's psychological and facial development. Moving the adjacent teeth to the central incisors may help to maintain the alveolar bone in the space of missing teeth, thereby preventing the development or complication of malocclusion. In the present report, we describe a case in which orthodontic treatment was performed for space management due to early missing teeth, leading to successful profile restoration of the missing teeth when she reached adulthood.
The patient was an 11-year-old girl who underwent replacement dentition due to the loss of her maxillary right central incisor arising from trauma. Her maxillary right lateral incisor was moved to the position of the maxillary right central incisor, necessitating a secondary orthodontic treatment by clear aligner in the permanent dentition. In adulthood, the lateral incisor was reshaped into a central incisor to match the shape of the contralateral central incisor. Early orthodontic treatment took 15 months and the secondary orthodontic treatment took 30 months. The results of one-year follow-up observation confirmed good periodontal condition and occlusion of the anterior teeth.
This case illustrates the need for early and effective space management through sequential orthodontic treatment and combined prosthodontic treatment to ensure favorable outcomes for patients with missing maxillary central incisors during the mixed dentition period.
对于儿童期缺失上颌中切牙的患者,随着时间推移,缺牙区牙槽骨的吸收会增加后期进行修复治疗的难度。恒牙早失也是错牙合畸形的主要原因之一。早期有效的间隙管理将对儿童的心理和面部发育产生积极影响。将相邻牙齿向中切牙移动可能有助于维持缺牙间隙的牙槽骨,从而防止错牙合畸形的发展或并发症。在本报告中,我们描述了一例因牙齿早失进行正畸治疗以管理间隙的病例,该患者成年后缺失牙的外形得以成功恢复。
患者为一名11岁女孩,因外伤导致上颌右侧中切牙缺失而进行替牙期治疗。她的上颌右侧侧切牙被移动到上颌右侧中切牙的位置,恒牙列期需要通过透明矫治器进行二次正畸治疗。成年后,将侧切牙重塑为中切牙以匹配对侧中切牙的外形。早期正畸治疗耗时15个月,二次正畸治疗耗时30个月。一年的随访观察结果证实前牙牙周状况良好且咬合正常。
本病例表明,对于混合牙列期上颌中切牙缺失的患者,需要通过序贯正畸治疗和联合修复治疗进行早期有效的间隙管理,以确保良好的治疗效果。