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Related Concept Videos

Glassware Calibration01:11

Glassware Calibration

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Accurate calibration of glassware, such as volumetric flasks, pipettes, and burettes, is essential to ensure accurate measurements in the analytical laboratory. Calibration helps maintain consistency across measurements and prevents errors arising from inaccurate volumes.
Volumetric flasks: Volumetric flasks are designed to prepare aqueous solutions of precise volumes accurately with a calibration line on the neck. To calibrate a volumetric flask, it is important to fill it with distilled...
2.0K

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Convergent Polishing: A Simple, Rapid, Full Aperture Polishing Process of High Quality Optical Flats & Spheres
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Polishing for glass ceramics: which protocol?

Tânia Mara da Silva1, Ana Carolina Rodrigues Danzi Salvia1, Rodrigo Furtado de Carvalho2

  • 1Department of Restorative Dentistry, São José dos Campos School of Dentistry, UNESP - Univ Estadual Paulista, São Paulo, Brazil.

Journal of Prosthodontic Research
|April 2, 2014
PubMed
Summary
This summary is machine-generated.

Polishing dental ceramic restorations after adjustments requires careful material selection based on ceramic type. While reglazing offers optimal smoothness, abrasive methods can achieve satisfactory results when reglazing isn't feasible.

Keywords:
Dental ceramicsPolishing methodsSuperficial roughness

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Area of Science:

  • Dental Materials Science
  • Restorative Dentistry
  • Surface Engineering

Background:

  • Adjustments to ceramic restorations can compromise surface integrity, necessitating effective polishing protocols.
  • Loss of the superficial glazing layer during adjustments impacts the esthetics and function of dental restorations.
  • Various polishing materials and techniques are employed to restore surface smoothness to dental ceramics.

Purpose of the Study:

  • To conduct a literature review on different polishing protocols for various dental ceramics.
  • To identify optimal methods for achieving satisfactory surface smoothness after ceramic restoration adjustments.

Main Methods:

  • Literature review of scientific articles published between 2004 and 2012.
  • Databases searched include MEDLINE, PubMed, and Scielo.
  • Analysis of 20 relevant articles evaluating ceramic types, polishing treatments, and surface roughness.

Main Results:

  • Optimal polishing depends on the ceramic type after the glazing layer is disrupted.
  • Reglazing provides excellent surface smoothness; abrasive methods (rubber cups, sandpaper discs, diamond pastes) offer satisfactory alternatives.
  • Clinical studies on polishing protocol efficacy are limited and require further investigation.
  • Numerous variables influence the final polishing outcome.

Conclusions:

  • Standardization of research methodologies is crucial for comparing polishing protocol outcomes.
  • Further clinical research is needed to evaluate the long-term behavior of different polishing techniques.