早期龋再矿化的口内研究

Intra-oral study of remineralization of early enamel caries

目的：通过使用泡腾颗粒低氟矿化剂对牛牙人工龋标本在体内的再矿化作用进行观察。方法：受试者２０人采用金属丝结扎式口内装置法。实验结束后，取出釉质块，采用体外偏光显微镜，显微Ｘ线，显微硬度及扫描电镜等手段检查。结果：矿化组显示早期龋釉面硬度值升高，与对照组有明显差异。病变深层负光性增强，密度加大，而表层未见明显增厚。扫描电镜显示矿化组釉面病损区有矿物质沉积及釉面孔隙变小。结论：“泡腾”

Aim:To test the effects of a new developed mineralization agent “Pao Teng” on early enamel caries. Methods: Bovine enamel slabs with artiticial carious lesions were mounted in modified intraoral appliances. After the intraoral process, the bovine enamel slabs were examined with polarized light microscopy, microhardness-metry ,microradiography and scanning electron microscopy (SEM). Results: The hardness and density of enamel lesions in test group increased significantly compared with the control group. Meanwhile, more mineral deposits were found by SEM on the surface of enamel from the test group. Conclusions: The results demonstrate that the “Pao Teng ” is a potential remineralization agent.