Skogedal O, Tronstad L
Oral Surg Oral Med Oral Pathol. 1977 Jan;43(1):135-40. doi: 10.1016/0030-4220(77)90364-4.
The purpose of the present investigation was to study the dentin and pulp changes in the two halves of bisected carious teeth in order to determine if they are comparable. The dentin was studied by means of contact microradiography. Hypo- and hypermineralized zones, which were fairly similar in extension and degree of mineralization, were seen in the primary dentin of both halves of the teeth. If secondary dentin had formed, comparable amounts were usually present in the two halves. The pulp was studied, using demineralized 5 mum thick paraffin serial sections. In teeth with deep carious lesions severe inflammation with abscess formation was often observed in one half, whereas only scattered inflammatory cells were present in the other half. It seems questionable, therefore, whether the study of dentin and pulp reactions to caries in different halves of bisected teeth is a suitable method in investigations concerning a possible correlation between these reactions.
本研究的目的是研究二分龋牙两半部分的牙本质和牙髓变化，以确定它们是否具有可比性。通过接触式显微放射摄影术研究牙本质。在牙齿两半部分的原发性牙本质中可见矿化不足和矿化过度区域，其范围和矿化程度相当相似。如果形成了继发性牙本质，两半部分通常存在相当数量的继发性牙本质。使用脱矿质的5μm厚石蜡连续切片研究牙髓。在患有深龋病变的牙齿中，经常在一半中观察到伴有脓肿形成的严重炎症，而另一半中仅存在散在的炎症细胞。因此，在研究这些反应之间可能的相关性时，研究二分牙不同两半部分中牙本质和牙髓对龋齿的反应是否是一种合适的方法，这似乎值得怀疑。
