Schulz S D, Donath K
Abteilung für Oralpathologie des Instituts für Pathologie, Universität, Hamburg, Bundesrepublik Deutschland.
Dtsch Zahn Mund Kieferheilkd Zentralbl. 1992;80(1):33-6.
Undecalcified sections of 31 impacted third molars are examined histologically for signs of resorption. Resorption starts at small spots in enamel, progresses to dentin and may even penetrate the pulp cavity. The incidence of such resorption processes increases after the age fifty. A prerequisite for resorption is the loss of reduced ameloblastic epithelium. Histological examination reveals multinuclear giant cells and apposition of spongious bone to destroyed dental substances. The results is dental ankylosis. Because partially resorbed teeth or ankylosed teeth may lead to serious surgical difficulties, impacted wisdom teeth without any clinical symptoms and without pathologic radiological findings should always be extracted at a young age.
对31颗阻生第三磨牙的未脱钙切片进行组织学检查,以寻找吸收迹象。吸收始于牙釉质的小斑点,发展至牙本质,甚至可能穿透牙髓腔。这种吸收过程的发生率在50岁以后会增加。吸收的一个前提条件是成釉细胞上皮的减少。组织学检查显示多核巨细胞以及海绵状骨与被破坏的牙体组织的附着。结果是牙粘连。由于部分吸收的牙齿或粘连的牙齿可能导致严重的手术困难,对于没有任何临床症状且没有病理影像学表现的阻生智齿,应在年轻时拔除。