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Related Concept Videos

Differential Staining Technique01:26

Differential Staining Technique

Differential staining is an essential microbiological technique that exploits variations in cell wall structures to classify and identify microorganisms. It facilitates the distinction of bacteria, aiding in diagnostic and research applications. Two of the most widely used differential staining methods are Gram staining and acid-fast staining, both of which rely on the chemical and structural differences in bacterial cell walls.Gram Staining TechniqueGram staining differentiates bacteria by...
Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
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Accurate analysis of complex samples often requires advanced preparation techniques to achieve reliable and reproducible results. Samples containing inorganic or organic materials can be challenging to dissolve or decompose effectively. Standard sample preparation methods include acid digestion, fusion, dry ashing, and wet digestion.
Acid digestion with strong acids is commonly used to dissolve inorganic materials that are insoluble (do not dissolve) in water. This method can be useful for...

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Updated: May 8, 2026

Undecalcified Bone Preparation for Histology, Histomorphometry and Fluorochrome Analysis
07:29

Undecalcified Bone Preparation for Histology, Histomorphometry and Fluorochrome Analysis

Published on: January 8, 2010

A comparative study of various decalcification techniques.

Prathibha Prasad1, Mandana Donoghue

  • 1Department of Oral Pathology, College of Dentistry, Gulf Medical University, Ajman, United Arab Emirates.

Indian Journal of Dental Research : Official Publication of Indian Society for Dental Research
|September 13, 2013
PubMed
Summary
This summary is machine-generated.

Ethylene Di-Amine Tetra Acetic Acid (EDTA) is the best decalcifying agent for preserving tissue integrity in mineralized tissues. Formal nitric acid offers a faster alternative when time is limited.

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A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
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Undecalcified Bone Preparation for Histology, Histomorphometry and Fluorochrome Analysis
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Sampling and Pretreatment of Tooth Enamel Carbonate for Stable Carbon and Oxygen Isotope Analysis
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A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro
11:30

A Semi-Automated and Reproducible Biological-Based Method to Quantify Calcium Deposition In Vitro

Published on: June 2, 2022

Area of Science:

  • Histology
  • Mineralized Tissue Research
  • Biomaterials Science

Background:

  • Demineralization is crucial for studying mineralized tissue structures.
  • Calcium apatite removal is a necessary step for histological analysis.

Purpose of the Study:

  • To evaluate six common demineralizing agents.
  • To identify the optimal decalcifying agent for histological assessment.

Main Methods:

  • Six demineralizing solutions tested: formal nitric acid (10%, 8%), formic acid (10%, 8%), Perenyi's fluid, and Ethylene Di-Amine Tetra Acetic Acid (EDTA).
  • Rat posterior mandible samples were decalcified and assessed using chemical end-point tests and Ehrlich's Hematoxylin staining.
  • Statistical analysis included One-way ANOVA and Chi-square test with significance at P ≤ 0.05.

Main Results:

  • EDTA demonstrated superior histological preservation and tissue integrity.
  • Formal nitric acid (10% and 8%) provided rapid demineralization with good cellular detail.

Conclusions:

  • EDTA is recommended as the best decalcifying agent for optimal histological outcomes.
  • Formal nitric acid is a viable, faster alternative for time-constrained studies.