经上颌前庭入路鼻底途径拔除上颌前牙区高位埋伏多生牙：一例病例报告

文献信息

中文摘要

背景： 上颌前牙区靠近鼻底的高位埋伏多生牙给手术带来显著挑战，因为传统的唇侧或腭侧入路常需大量去骨，并有损伤邻牙的风险。方法：本病例报告描述一名14岁女性，其上颌前牙区反复肿胀和不适。锥形束计算机断层扫描（CBCT）成像显示一颗高位多生牙附着于鼻底骨板。经上颌前庭切口，在鼻底邻近处创建骨窗，并细致保护鼻黏膜，符合改良手术命名。结果：采用分块截断技术成功拔除该牙。3个月随访时愈合顺利，未报告鼻部症状，也无感染或口鼻交通的临床证据。结论：本单例仅提供短期技术可行性证据，不能确立安全性、比较性侵入程度或低并发症风险。

英文摘要

High-positioned impacted supernumerary teeth near the nasal floor in the maxillary anterior region pose significant surgical challenges, as conventional labial or palatal approaches often require extensive bone removal and risk injuring adjacent teeth. This case report describes a 14-year-old female with recurrent swelling and discomfort in the maxillary anterior region. Cone-beam computed tomography (CBCT) imaging revealed a high-positioned supernumerary tooth adherent to the nasal floor bone plate. Via a maxillary vestibular incision, a bone window was created adjacent to the nasal floor with meticulous protection of the nasal mucosa, consistent with the modified surgical nomenclature. The tooth was successfully removed using a segmental sectioning technique. At the 3-month follow-up, healing was uneventful with no reported nasal symptoms or clinical evidence of infection or oronasal communication. This single case provides short-term technical feasibility evidence only and does not establish safety, comparative invasiveness, or a low complication risk.