- 期刊
Association of Tooth Discoloration in Traumatized Primary Incisors with Clinical and Radiographic Signs of Pulp Status
外傷乳門牙的顏色變化與牙髓狀態之關聯
摘要
Objectives: The aim of the present study was to evaluate the association of traumatized primary incisors with different types of tooth discoloration and its clinical, radiographic findings and ultimate treatment. Methodology: The retrospective study population consisted of 46 patients aged 1-5.5 years (mean 3.6 years) at the time of injury and applied to the Pediatric Dentistry Department of Kaohsiung Chang Gung Memorial Hospital (KCGMH). 63 traumatized primary incisors were collected. The following data were recorded: gender, traumatized tooth, age of child at the time of the trauma, types of crown discoloration, abscess or fistula in clinical examination, periapical lesion or pathological root resorption in radiographic examination. These patients were asked to return for periodic recall examinations every three months and at least keep follow-up twelve months. The chi-square test was used in the statistical analysis. Results: Among the sixty-three teeth with discoloration, twenty-seven (42.8%) were yellow, thirty-six (57.2%) were gray color. Gray discoloration teeth significantly presented more clinical infection signs compared with yellow teeth (p < 0.001). Radiographic examination showed that gray discoloration teeth presented more inflammatory root resorption than yellow teeth (p < 0.001). Gray teeth develop more pathologic signs that require pulp therapy or extraction as compared with yellow ones (p < 0.001). Conclusions: According to our study, we can infer that gray discoloration traumatized incisors could be interpreted as an early sign of pulp degeneration that would deteriorate into pulp necrosis. Periodic follow-up and assessment are required to determine the need for dental intervention.
並列摘要
目的：探討乳門牙因受外傷後牙冠產生不同顏色變化，與其後續臨床、影像學上與最終接受的牙科治療之關聯性。方法：研究包含四十六位孩童，外傷時的年齡範圍從一歲至五歲半（平均3.6歲），共六十三顆受外傷之上顎乳門牙。納入研究的病人於高雄長庚紀念醫院就診，收集以下資料：性別、牙齒受外傷時的病人年齡、受傷齒位、牙冠變色類型、臨床是否具牙疱或局部膿瘍現象、影像學上是否根尖吸收或病灶。所有病人均三個月定期回診並追蹤至少十二個月，結果使用卡方檢定統計分析。結果：在63顆牙齒中，27例（42.8%）顏色變黃色，36例（57.2%）為灰黑色。臨床上顯示灰黑牙齒比起黃色牙齒呈現較多軟組織腫脹發炎；灰黑牙齒比起黃色牙齒在影像學上呈現較多牙根發炎性吸收；灰黑牙齒比起黃色牙齒需要接受牙髓治療或拔牙，此三項統計上均有顯著差異（p<0.001）。結論：根據此篇研究，我們能推論外傷乳門牙牙冠灰黑變色可能是牙髓壞死的早期徵兆。因此，定期回診追蹤與評估是必要的。