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摘要


齒外齒是一種牙齒發育的異常,在牙齒的咬合面上突起一個的結節,最常見於下顎小臼齒。而此咬合面的結節會容易干擾到正常咬合,而導致結節的磨耗或斷裂,因此引發齒髓炎、齒髓壞死、根尖周圍病變和感染。本篇病例報告乃是一位病人,因為齒外齒而導致顏面蜂窩性組識炎,而且該牙齒根尖呈現尚未發育完全的現像,經由適當的處置並用氫氧化鈣做根尖成形術,在根管充填後一年X光片的追蹤,發現已經沒有根尖周圍病變,並且在牙齒根尖也呈現封閉的情形。

並列摘要


Dens evaginatus is a developmental anomaly that produces a tubercle on the occlusal surface of a tooth. It is found most frequently in the mandibular premolars. The occlusal tubercle easily causes occlusal interferences. Attrition or fracture of the tubercle can lead to pulpitis, pulp necrosis, periapical pathosis, and periapical infection. This case report illustrates the treatment of facial cellulitis arising from dens evaginatus with open apex. Calcium hydroxide was used for the apexification procedure. One year after canal obturation, radiography revealed no apical pathosis and the apical seal was evident.

並列關鍵字

facial cellulites dens evaginatus

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