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Visualization of the dentogingival junction using micro-plastination technique.

Jaime Correa-Aravena1,2,3, Camila Panes4,5, Nikol Ponce4,6

  • 1Doctoral Program in Medical Sciences, Universidad de La Frontera, Temuco, Chile.

Clinical Anatomy (New York, N.Y.)
|October 8, 2024
PubMed
Summary

Micro-plastination offers a novel method for preserving and visualizing the dentogingival junction (DGJ). This technique enhances micro-anatomical and histological studies of the DGJ, improving research in anatomy and morphology.

Keywords:
dentindentogingival junctionenamelhistological stainsmicroplastinationplastinationautofluorescence

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Area of Science:

  • Anatomical Sciences
  • Histology
  • Biotechnology

Background:

  • Plastination enables long-term preservation of biological specimens for anatomy and research.
  • The dentogingival junction (DGJ) comprises epithelial and connective tissues adjacent to tooth mineralized tissues.
  • Current cutting-grinding techniques for DGJ histology exclude enamel and limit visualization.

Purpose of the Study:

  • To introduce and evaluate micro-plastination for micro-anatomical and histological study of the dentogingival junction (DGJ).
  • To assess the utility of micro-plastination in visualizing challenging anatomical regions.

Main Methods:

  • Applied micro-plastination to human and animal samples to create slices under 150 μm.
  • Utilized histological stains on micro-plastinated slices for visualization.
  • Leveraged endogenous autofluorescence of micro-plastinated tissues.

Main Results:

  • Successfully visualized micro-thin slices of the DGJ.
  • Highlighted periodontal tissues including dentin, enamel, cementoenamel junction, dentinal tubules, connective tissue, and collagen.
  • Demonstrated the capacity of micro-plastination to identify these structures through staining and autofluorescence.

Conclusions:

  • Micro-plastination is an effective technique for visualizing difficult-to-access anatomical regions like the DGJ.
  • This method provides an alternative approach for anatomical and morphological research.
  • Micro-plastination enhances the study of micro-anatomy and histology in periodontal research.