Interpretation of ground section of human dentin tissue

الملخص EN

Background: Thick ground sections from human teeth showed a considerable amount of details in dentin tissue, the purpose of this study was to prepare ground sections for dentin tissue that were in all aspects helpful in teaching purpose, because of their shortage in our oral histology labs.

Materials and methods: Fifteen permanent and five deciduous human teeth used in this study.

Each tooth was ground by hand into two halves, section was 50-75 microns thick was made, which mounted on glass slide, the sections were cut mostly longitudinally, and few sections were transversely ground.

Result: The results are demonstrated throughout the figures, they showed a considerable amount of details in dentin tissue like as: dentinal tubules, primary and secondary curvature, branching of dentinal tubules in crown, root and bifurcation area, radicular tubules, in addition to dentinoenamel junction, mantle dentin, intergloubular dentin in crown and root, tomes granular layer, secondary dentin, seclerotic dentin and dead tract.

Conclusion: Ground sections for dentin tissue were gained, the study could be as a background for examination of special clinical cases, and the sections were shown to be beneficial for teaching purpose.

Keywords: Ground section, dentin, tomes granular layer.

(J Bagh Coll Dentistry 2008;20(2): 42-44)