Ectopic impacted third molar in the mandibular condyle associated with a dentigerous cyst: A case report

doi:10.12439/kqhm.1005-4979.2025.03.013

Abstract

Abstract:

Ectopic teeth are commonly found in the maxillary sinus and nasal cavity, while impacted third molars in the mandible are relatively rare. Cases of ectopic impaction of the third molar occurring in the condyle accompanied by dentigerous cysts are even rarer. This article reports a case of ectopic impacted third molar in the mandibular condyle with a dentigerous cyst, aiming to provide clinical doctors with diagnostic and treatment ideas for such conditions.

Key words: tooth ectopia, impacted tooth, condyle, dentigerous cyst

摘要：

牙齿异位常见于上颌窦、鼻窦等，下颌异位阻生第三磨牙较为少见，而发生于髁突的异位阻生第三磨牙伴发含牙囊肿的病例则更为少见。本文报道1例下颌髁突异位阻生第三磨牙伴含牙囊肿病例，旨在为临床医生提供此类疾病的诊断参考及治疗思路。

关键词: 牙齿异位, 阻生齿, 髁突, 含牙囊肿

CLC Number:

R782

HU Yaqi, CUI Zekun, GUO Yanjun. Ectopic impacted third molar in the mandibular condyle associated with a dentigerous cyst: A case report[J]. 《Journal of Oral and Maxillofacial Surgery》, 2025, 35(3): 241-244.

胡雅琦, 崔泽坤, 郭燕军. 下颌髁突异位阻生智齿伴含牙囊肿1例[J]. 《口腔颌面外科杂志》, 2025, 35(3): 241-244.

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URL: https://journal06.magtech.org.cn/Jweb_joms/EN/10.12439/kqhm.1005-4979.2025.03.013

https://journal06.magtech.org.cn/Jweb_joms/EN/Y2025/V35/I3/241

Figures/Tables 5

Figure 1 Panoramic and sectional view of the oral cavity

Figure 2 CBCT three-dimensional imaging image and lateral view of the head

Figure 3 Small anterior tragus incision and intraoperative morphology of the impacted tooth

Figure 4 Length and diameter of the impacted tooth

Figure 5 Hematoxylin-eosin staining picture（× 100）

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