The prospect of dental fluorosis prevention in Wonji Ethiopia

This study identified factors that are associated with dental fluorosis among school adolescents in an endemic area using a control design. Data were collected using a directed self-administered questionnaire. Dental fluorosis was confirmed by a dentist. Out of the 472 students who participated in the study, 398 had dental fluorosis and the remaining 74 were free of dental fluorosis. A logistic regression analysis revealed children born in Wonji compared to those born elsewhere [Adjusted OR (95% CI): 5.12 (2.68, 9.75)]; males compared to female [Adjusted OR (95% CI): 2.76 (1.52, 5.00)]; and those who obtained their regular drinking water from pipe distribution compared to those who obtained water from other sources [Adjusted OR (95% CI): 3.5 (1.24, 10.02] were more likely to have dental fluorosis. Students in the age group 13-14 year compared to those in 11-12 year were less likely to have dental fluorosis [Adjusted OR (95% CI): 0.43 (0.25, 0.76)]. The findings indicate that the risk of dental fluorosis is still much higher for the population in Wonji and recommend strengthening appropriate intervention systems at household and community levels.     

颌面部骨纤维异常增殖症和骨化纤维瘤的比较

骨纤维异常增殖症和骨化纤维瘤是颌面部比较常见的2种良性纤维骨病变。本文通过对临床病例比较发现:骨纤维异常增殖症是一种发育畸形;X线片显示为弥散性膨胀,病变与正常骨组织之间无明显界限;手术以成形切除为主。骨化纤维瘤是良性肿瘤;X线片显示为局限性膨胀,圆形或卵圆形,病变与正常骨组织之间界限清楚;手术应完整切除瘤体。     

水平投照角度不同的2张牙片在上颌前部埋伏牙定位中的临床应用

目的：探讨应用水平投照角度不同的2张牙片定位上颌前部埋伏牙的可靠性。方法：对30例上颌前部埋伏牙患者拍摄常规及水平偏移角度的2张牙片,观察埋伏牙影像移位情况,判定埋伏于唇、腭侧的情况,依据判定的埋伏牙位置选取唇、腭侧不同入路开窗手术。结果：埋伏牙相对于参照牙影像移动方向与投照偏移方向相同者位于腭侧,埋伏牙相对于参照牙影像移动方向与投照偏移方向相反者位于唇侧。30例患者的手术入路均正确。结论：用水平投照角度不同的2张牙片定位上颌前部埋伏牙方便、廉价、准确。