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Related Concept Videos

Biofilms01:29

Biofilms

Biofilms are complex communities of microorganisms encased in a self-produced extracellular polysaccharide matrix attached to surfaces. These microbial consortia can include single or multiple species, providing enhanced survival benefits by forming organized, multilayered structures.The formation of biofilms occurs through four key stages: attachment, colonization, development, and dispersal.During attachment, free-swimming planktonic cells adhere to a surface, often facilitated by...

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Related Experiment Video

Updated: Jun 5, 2026

Antimicrobial Characterization of Advanced Materials for Bioengineering Applications
08:08

Antimicrobial Characterization of Advanced Materials for Bioengineering Applications

Published on: August 4, 2018

Development of standard protocols for biofilm-biomaterial interface testing.

Fabian Cieplik1, Conrado Aparicio2, Jens Kreth3

  • 1Department of Conservative Dentistry and Periodontology, University Hospital Regensburg, Regensburg, Germany.

JADA Foundational Science
|June 4, 2026
PubMed
Summary
This summary is machine-generated.

Developing standardized in vitro tests for antibacterial dental materials is crucial. A new International Organization for Standardization (ISO) standard (ISO 3990) aims to address challenges in evaluating oral biofilm interactions for dental restorative materials.

Keywords:
AntibacterialISO standardsdental materialmicrobiologystandardization

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Antimicrobial Characterization of Advanced Materials for Bioengineering Applications
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13:25

Harvesting and Disaggregation: An Overlooked Step in Biofilm Methods Research

Published on: April 22, 2022

Area of Science:

  • Dental Materials Science
  • Microbiology
  • Biomaterials Engineering

Background:

  • Oral biofilm contributes to prevalent diseases like caries and periodontitis, impacting dental restoration success.
  • Existing methods for testing antibacterial properties of dental materials face challenges due to oral biofilm complexity and the need for in vitro standardization.
  • Standardized testing is essential for reliable, comparable data across laboratories.

Purpose of the Study:

  • To highlight the need for standardized in vitro testing of antibacterial properties for dental restorative materials.
  • To introduce the development of a new International Organization for Standardization (ISO) standard (ISO 3990) for this purpose.
  • To outline the scope and initial requirements of the proposed ISO standard.

Main Methods:

  • The study discusses the challenges in designing in vitro tests for dental materials interacting with oral biofilm.
  • It highlights the role of the International Organization for Standardization (ISO) Technical Committee 106-Dentistry.
  • Focuses on the development of a new standard (ISO 3990) for testing antibacterial properties.

Main Results:

  • A new standard, ISO 3990, is under development to standardize the testing of antibacterial properties of dental restorative materials.
  • The standard will define requirements for sample preparation, bacterial strain selection, test methods, assessment, and reporting.
  • This represents a foundational step towards reliable in vitro evaluation.

Conclusions:

  • Standardization of in vitro antibacterial testing is vital for dental restorative materials.
  • The forthcoming ISO 3990 standard provides a framework for consistent evaluation.
  • Multidisciplinary scientific input is crucial for the ongoing development and revision of this standard.