Aesthetic and functional rehabilitation of a supernumerary peg-shaped tooth in the primary dentition

Supernumerary teeth are common changes in the human dentition that can compromise a congruous dental and facial growth and development. Early diagnosis and proper treatment of these developmental changes are essential for establishing occlusal, functional, and aesthetic congruence. Thus, this article reports the functional and aesthetic rehabilitation of a supernumerary peg-shaped tooth located in the anterior maxillary region of a preschooler. The tooth was restored directly using nanocomposite resin system, a putty index of the incisal position, and modified cotton roll isolation. This minimally invasive procedure not only allows future adjustment but also perfect control of the rehabilitation and simultaneous reestablishment of the child's self-esteem and tooth aesthetics and function. However, treatment should not be limited to the restorative technique. Maintenance of oral health and arch integrity are essential for the correct transition between the primary and permanent dentitions, preventing the treatment from affecting the permanent dentition.

多生牙（supernumerary teeth）是人类牙列常见的发育异常，可损害牙列与颌面的协调生长发育。对这类发育异常进行早期诊断与恰当治疗，对于建立协调的咬合关系、恢复功能与美学效果至关重要。因此，本文报告1例学龄前儿童上颌前牙区多生锥形牙的功能与美学修复病例。该患牙采用直接修复方式，通过纳米复合树脂系统（nanocomposite resin system）、切端定位导板（putty index）以及改良棉卷隔湿技术完成治疗。该微创操作（minimally invasive procedure）不仅便于后续调整，还能精准把控修复效果，同时帮助患儿重建自尊、恢复牙齿的美学形态与咀嚼功能。但治疗不应仅局限于修复操作本身。维持口腔健康与牙弓完整性，对于乳牙列（primary dentition）向恒牙列（permanent dentition）的顺利替换至关重要，可避免治疗对恒牙列造成不良影响。