在牙齿和颌骨(尤其是牙髓)的组织学研究中,组织固定是一个十分重要的步骤。许多学者认为组织未能获得及时和充分固定是某些组织学人工赝象的主要原因。有人证实在完整的牙齿拔除后,即使立即放入固定液中也难以使整个牙髓得以充分固定。因此,Hill、Lange-Land、mitchell等提出:拔除的牙齿首先应立即在喷水情况下,在一选择面上磨至近髓;去除部分根尖;或将牙齿分割为冠、根两部分,然后再投入固定液中的固定方法。而在动物实验中,国外已广泛 Tissue fixation is a very important step in histological studies of teeth and jaws, especially pulp. Many scholars believe that failure of the organization to obtain timely and adequate fixation is a major cause of some artificial histories. It was confirmed that after complete tooth removal, it is difficult to adequately secure the entire pulp even immediately after it has been placed in the fixing fluid. Therefore, Hill, Lange-Land, Mitchell et al. Proposed that the extracted tooth should first be immediately milled to near pulp on a selected surface under water spray; part of the root tip should be removed; or the tooth should be divided into two parts, Then put in fixed solution in the fixed method. In animal experiments, foreign countries have been extensive