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Related Concept Videos

Effects of EDTA on End-Point Detection Methods01:18

Effects of EDTA on End-Point Detection Methods

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Different methods, such as visual observance of metal-ion indicators, spectroscopic techniques, and potentiometric methods, can determine the endpoint of an EDTA titration.
In the visual method, metal-ion indicators (metallochromic dyes), which have distinct colors in their free and complex forms, are added to the mixture to signal the titration's end point. They form stable complexes with metal ions, but these complexes are weaker than the corresponding metal–EDTA complexes. As a...
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Related Experiment Video

Updated: Jul 18, 2025

Accuracy in Dental Medicine, A New Way to Measure Trueness and Precision
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Accuracy of Selective Enamel Etching: A Computer-assisted Imaging Analysis.

T Amran1, D Meier2, J Amato3

  • 1†Tarek Amran, M Dent Med, Department of Periodontology, Endodontology, and Cariology, University Center for Dental Medicine Basel UZB, University of Basel, Basel, Switzerland.

Operative Dentistry
|August 28, 2023
PubMed
Summary
This summary is machine-generated.

Selective enamel etching (SEE) accuracy varied by tooth type in a lab simulation, with class V cavities showing the highest accuracy. Further research is needed to confirm if inadvertent dentin etching is common during SEE.

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Area of Science:

  • Dental materials science
  • Conservative dentistry
  • Clinical simulation studies

Background:

  • Selective enamel etching (SEE) is a technique used in restorative dentistry.
  • Accurate application of SEE is crucial for optimal bonding and clinical outcomes.
  • Understanding the precision of SEE under simulated clinical conditions is important for technique refinement.

Purpose of the Study:

  • To evaluate the accuracy of selective enamel etching (SEE) in a laboratory setting.
  • To simulate clinical conditions for assessing SEE precision on different tooth preparations.
  • To identify factors influencing the accuracy of selective enamel etching.

Main Methods:

  • A laboratory model with human teeth (molar, incisor, canine) featuring various cavity preparations was used.
  • Two dentists with different experience levels performed SEE using a custom gel.
  • Intraoral scanning and specialized software (OraCheck) were employed to assess etching accuracy.

Main Results:

  • Accuracy of SEE ranged from 61.1% to 87.0%, with significant differences observed between cavity types.
  • Class V cavities demonstrated the highest accuracy, followed by class II inlay and class IV cavities (p<0.001).
  • No significant correlation was found between application time and SEE accuracy across different cavities (p=0.07).

Conclusions:

  • Laboratory findings suggest that inadvertent etching of adjacent dentin during SEE may occur frequently.
  • Larger-scale studies involving more dentists are recommended to validate these findings.
  • The study highlights potential challenges in achieving precise selective enamel etching in clinical practice.