Xu Shuhao, Li Xiaolong, Zhang Yu, Li Wei
Department of Stomatology, Deyang People's Hospital, Deyang, China.
Department of Respiratory and Critical Care Medicine, Deyang People's Hospital, Deyang, China.
Case Rep Dent. 2025 Jun 26;2025:8219795. doi: 10.1155/crid/8219795. eCollection 2025.
Radicular cyst is the most common inflammatory odontogenic cyst in the oral cavity, but it rarely occurs in deciduous teeth. Radicular cysts in deciduous teeth can lead to root dilaceration in permanent successor teeth, resulting in impacted permanent teeth. We presented an 11-year-old boy who underwent decompression and drainage of a radicular cyst in deciduous tooth, followed by early orthodontic traction of permanent successor tooth with root dilaceration. The cyst healed successfully, and the impacted premolar was gradually aligned into the dental arch with favorable root development This case demonstrates that timely decompression of radicular cysts in deciduous teeth can effectively protect the successor permanent teeth. Meanwhile, for cases where permanent tooth impaction with root dilaceration has already occurred, timely orthodontic traction can move the root from the bone cortex into the cancellous bone to obtain growth space.
根尖囊肿是口腔中最常见的炎性牙源性囊肿，但很少发生于乳牙。乳牙根尖囊肿可导致恒牙胚牙根弯曲，造成恒牙阻生。我们报告了一名11岁男孩，其乳牙根尖囊肿接受了减压引流，随后对牙根弯曲的恒牙胚进行了早期正畸牵引。囊肿成功愈合，阻生的前磨牙逐渐排入牙弓，牙根发育良好。该病例表明，及时对乳牙根尖囊肿进行减压可有效保护恒牙胚。同时，对于已经发生牙根弯曲导致恒牙阻生的病例，及时进行正畸牵引可将牙根从骨皮质移入松质骨以获得生长空间。
