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Concrescence of maxillary second molar and impacted third molar: A case report
Jun Su1, Li-Mei Shao1, Lian-Cheng Wang1
1Department of Stomatology, 920 Hospital of the Joint Logistics Support Force, Kunming 650032, Yunnan Province, China.
World Journal of Clinical Cases
|October 17, 2022
Summary
Diagnosing concrescence, a dental anomaly where tooth roots fuse, is challenging. Cone-beam computed tomography (CBCT) aids in accurate diagnosis and treatment planning, preventing complications.
Area of Science:
- Dentistry
- Oral and Maxillofacial Radiology
Background:
- Dental anomalies like concrescence involve enamel, cementum, and dentin changes.
- Diagnosing concrescence clinically is difficult, often leading to accidental discovery during extraction.
Observation:
- A case study involved a 47-year-old woman seeking dental implant restoration.
- Radiography revealed unclear boundaries between maxillary molar roots, suggesting concrescence.
Findings:
- Cone-beam computed tomography (CBCT) provided clearer imaging of the fused tooth roots.
- Histopathological examination confirmed concrescence after extraction.
Implications:
- CBCT is valuable for diagnosing tooth concrescence preoperatively.
- Accurate diagnosis with CBCT can improve treatment planning and reduce complications.

