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A comparative study on the mechanical and antibacterial properties of BPA-free dental resin composites.

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Title: A comparative study on the mechanical and antibacterial properties of BPA-free dental resin composites.
Authors: Mahmoudi Meimand, Negar1 (AUTHOR), Tsoi, James Kit Hon1 (AUTHOR), Burrow, Michael Francis2 (AUTHOR), He, Jingwei3 (AUTHOR), Cho, Kiho1 (AUTHOR) dkcho@hku.hk
Source: Dental Materials. Aug2024, Vol. 40 Issue 8, pe31-e39. 9p.
Subjects: Dental materials, Dental resins, Dental equipment, Bacterial adhesion, One-way analysis of variance
Abstract: The commonly used base monomer utilized in resinous commercial dental restorative products is bis-GMA which is derived from bisphenol-A (BPA) - a well-known compound which may disrupt endocrine functions. To address concerns about its leaching into the oral environment and to optimize the quality of dental composites, a BPA-free alternative base monomer, fluorinated urethane dimethacrylate (FUDMA), was designed by modifying a UDMA monomer system. Nine groups of composites were prepared by mixing the base monomers and TEGDMA in a ratio of 70/30 wt% to which were added silanized glass particles (mean diameter: 0.7 µm) in 3 different volume fractions (40, 45, and 50 vol%). Bis-GMA and UDMA base monomers were used as control groups in the same ratios. Various properties including degree of conversion (DC), flexural strength (FS) and flexural modulus (FM), water sorption (WS), solubility (SL), surface hardness and roughness, and initial adhesion property against S.mutans were investigated. One-way analysis of variance followed by Bonferroni test at α = 0.05 was used to analyze the results. A significant difference in FS between FUDMA-based composite with 40 vol% filler (120.3 ± 10.4 MPa) and Bis-GMA-based composite with the same filler fraction (105.8 ± 10.0 MPa) was observed but there was no significant difference among other groups. The UDMA based group exhibited the highest WS (1.3 ± 0.3 %). Bis-GMA showed greater initial bacterial adhesion but was not statistically different from the other groups (p = 0.082). FUDMA-based resin composites exhibit comparable mechanical and bacterial adhesion properties compared with Bis-GMA and UDMA-based composites. The FUDMA composites show positive outcomes indicating they could be used as substitute composites to Bis-GMA-based composites. [Display omitted] • FUDMA composites have the potential to serve as viable substitutes for Bis-GMA-based composites in dental applications. • Substituting Bis-GMA with FUDMA significantly improved mechanical properties. • FUDMA composite reduces bacterial attachment compared to the Bis-GMA composite control group. [ABSTRACT FROM AUTHOR]
Copyright of Dental Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
An: 178478406
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PubType: Academic Journal
PubTypeId: academicJournal
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  Data: A comparative study on the mechanical and antibacterial properties of BPA-free dental resin composites.
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  Data: <searchLink fieldCode="AR" term="%22Mahmoudi+Meimand%2C+Negar%22">Mahmoudi Meimand, Negar</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tsoi%2C+James+Kit+Hon%22">Tsoi, James Kit Hon</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Burrow%2C+Michael+Francis%22">Burrow, Michael Francis</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22He%2C+Jingwei%22">He, Jingwei</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cho%2C+Kiho%22">Cho, Kiho</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> dkcho@hku.hk</i>
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  Data: <searchLink fieldCode="JN" term="%22Dental+Materials%22">Dental Materials</searchLink>. Aug2024, Vol. 40 Issue 8, pe31-e39. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Dental+materials%22">Dental materials</searchLink><br /><searchLink fieldCode="DE" term="%22Dental+resins%22">Dental resins</searchLink><br /><searchLink fieldCode="DE" term="%22Dental+equipment%22">Dental equipment</searchLink><br /><searchLink fieldCode="DE" term="%22Bacterial+adhesion%22">Bacterial adhesion</searchLink><br /><searchLink fieldCode="DE" term="%22One-way+analysis+of+variance%22">One-way analysis of variance</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The commonly used base monomer utilized in resinous commercial dental restorative products is bis-GMA which is derived from bisphenol-A (BPA) - a well-known compound which may disrupt endocrine functions. To address concerns about its leaching into the oral environment and to optimize the quality of dental composites, a BPA-free alternative base monomer, fluorinated urethane dimethacrylate (FUDMA), was designed by modifying a UDMA monomer system. Nine groups of composites were prepared by mixing the base monomers and TEGDMA in a ratio of 70/30 wt% to which were added silanized glass particles (mean diameter: 0.7 µm) in 3 different volume fractions (40, 45, and 50 vol%). Bis-GMA and UDMA base monomers were used as control groups in the same ratios. Various properties including degree of conversion (DC), flexural strength (FS) and flexural modulus (FM), water sorption (WS), solubility (SL), surface hardness and roughness, and initial adhesion property against S.mutans were investigated. One-way analysis of variance followed by Bonferroni test at α = 0.05 was used to analyze the results. A significant difference in FS between FUDMA-based composite with 40 vol% filler (120.3 ± 10.4 MPa) and Bis-GMA-based composite with the same filler fraction (105.8 ± 10.0 MPa) was observed but there was no significant difference among other groups. The UDMA based group exhibited the highest WS (1.3 ± 0.3 %). Bis-GMA showed greater initial bacterial adhesion but was not statistically different from the other groups (p = 0.082). FUDMA-based resin composites exhibit comparable mechanical and bacterial adhesion properties compared with Bis-GMA and UDMA-based composites. The FUDMA composites show positive outcomes indicating they could be used as substitute composites to Bis-GMA-based composites. [Display omitted] • FUDMA composites have the potential to serve as viable substitutes for Bis-GMA-based composites in dental applications. • Substituting Bis-GMA with FUDMA significantly improved mechanical properties. • FUDMA composite reduces bacterial attachment compared to the Bis-GMA composite control group. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Dental Materials is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.dental.2024.06.024
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      – Code: eng
        Text: English
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        PageCount: 9
        StartPage: e31
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      – SubjectFull: Dental materials
        Type: general
      – SubjectFull: Dental resins
        Type: general
      – SubjectFull: Dental equipment
        Type: general
      – SubjectFull: Bacterial adhesion
        Type: general
      – SubjectFull: One-way analysis of variance
        Type: general
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      – TitleFull: A comparative study on the mechanical and antibacterial properties of BPA-free dental resin composites.
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            NameFull: Mahmoudi Meimand, Negar
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            NameFull: Tsoi, James Kit Hon
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            NameFull: Burrow, Michael Francis
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            NameFull: He, Jingwei
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            NameFull: Cho, Kiho
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            – D: 01
              M: 08
              Text: Aug2024
              Type: published
              Y: 2024
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              Value: 40
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