An improved method for preparing stained ground teeth sections

PeerJ. 2023 Apr 28:11:e15240. doi: 10.7717/peerj.15240. eCollection 2023.

Abstract

Objective: In oral histopathology teaching and research, there is a need for high-quality undemineralized tooth sections that are easy to handle, have controlled thickness, allow the observation of intact microstructures, and can be preserved for long periods of time.

Methods: Teeth were collected under non-demineralizing conditions. Tooth sections (15-25 µm) were prepared using a diamond knife, then randomly divided into three groups: (1) stained with rosin, (2) stained with hematoxylin and eosin, or (3) not stained. The prepared tooth sections were evaluated by microscopy for clarity and microstructure visibility.

Results: The use of a diamond knife in the sectioning and grinding process yielded high-quality ground sections of teeth. Rosin-stained ground sections allowed better identification of microstructures within the teeth, compared with unstained or hematoxylin and eosin-stained ground sections.

Conclusion: The best results were obtained in the ground sections of teeth that were stained with rosin. Ground sections of teeth prepared using this staining method could be useful in oral histopathology teaching and research.

Keywords: Ground sections of teeth; Rosin; Un-demineralization.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Eosine Yellowish-(YS)
  • Hematoxylin
  • Humans
  • Microscopy / methods
  • Staining and Labeling
  • Tooth Discoloration*
  • Tooth*

Substances

  • Eosine Yellowish-(YS)
  • Hematoxylin

Associated data

  • figshare/10.6084/m9.figshare.21521505.v1

Grants and funding

This study was supported by the Education Commission of Chongqing Municipality (KJ1500211) and the First Batch of Key Disciplines On Public Health in Chongqing; College of Stomatology, Chongqing Medical University (KQJ202205). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.