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題 名 | Partial Pulpotomy as a Prophylactic Treatment of Dens Evaginatus--A Case Report=以部份冠髓切除術作為齒外齒之預防性治療--病例報告 |
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作 者 | 蕭美美; 王姻麟; 張曉華; 黃桂芬; 郭敏光; | 書刊名 | 臺灣兒童牙醫學雜誌 |
卷 期 | 17:3 2017.10[民106.10] |
頁 次 | 頁126-130 |
分類號 | 417.694 |
關鍵詞 | 齒外齒; 部份冠髓切除術; Dens evaginatus; Partial pulpotomy; |
語 文 | 英文(English) |
中文摘要 | 齒外齒在臨床上指的是當咬合面、舌側面表現出一個或多個額外齒阜的牙齒不規則發育,有時候,這些額外的齒阜也會伴隨著牙髓腔的延伸。若在牙根尚未發育完全時,容易因咬合過程中的磨耗或斷裂而影響牙根的發育及讓牙髓受到感染而導致牙髓壞死的情形。在齒外齒伴隨牙髓延伸的牙齒中,希望藉由預防性的介入處置來避免牙根發育及牙髓組織的影響。藉由早期的診斷以及介入,齒外齒的治療可以是保守的、或積極的方式。文中的案例報告提出了一名11歲女孩,其中8顆小臼齒均有額外齒阜凸出的表現。其中,右上第一小臼齒在過去有發生慢性牙齒齒槽膿腫並接受根管治療。當左上第二小臼齒萌發時,咬合面伴隨著一個明顯的尖細齒阜。從根尖片放射影像也可觀察到齒阜中有一明顯狹窄延伸的牙髓腔,根據Moorrees' system分類,牙根的發育程度在stage G階段。左上第二小臼齒在局部麻醉以及橡皮樟隔離下,以氫氧化鈣覆蓋來進行部份冠髓切除術。從三個月的術後回診根尖片放射影像可以觀察到左上第二小臼齒之牙根有正常發育的趨勢,臨床上並沒有其他徵兆和症狀且牙髓活性表現均正常。從我們的病例報告中,藉由部份冠髓切除術來作為伴隨牙髓延伸的齒外齒的預防性治療,對齒外齒的存活提供了另一個有利的選擇。 |
英文摘要 | Dens evaginatus (DE) is a dental developmental anomaly characterized by presence of an extra cusp arising from occlusal or lingual surface which may contain extension of pulp. The cusp is susceptible to pulp exposure from wear or fracture, leading to pulp necrosis which often occur prior to completion of root formation. Prevention of pulpal involvement in cases of DE is important to avoid a tooth with compromised root structure when treating necrotic pulps. Treatment of DE may be conservative or radical which may be decided from an early diagnosis and intervention. This case report illustrated an 11-year-old girl who presented eight premolars with extra cusp-like protrusions. She had experienced chronic dento-alveolar abscess on tooth 14 which had received root canal treatment 2 months ago. Tooth 25 was just erupted with a sharp extra cusp on occlusal surface. Periapical radiograph showed sharp enamel tip and narrow extension of pulp with root development at stage G according to Moorrees' system. Partial pulpotomy with calcium hydroxide capping was performed under local anesthesia and rubber dam isolation. Post-treatment recall radiograph after 3 month showed normal development of the root apex and the pulp remained vital without sign and symptom. We proposed that prophylactic treatment of DE with partial pulpotomy can provide a favorable protocol for the DE tooth to surviv. |
本系統中英文摘要資訊取自各篇刊載內容。