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Analysis of tensile bond strengths using Weibull statistics

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Title: Analysis of tensile bond strengths using Weibull statistics
Authors: Burrow, Michael F.1 mfburrow@unimelb.edu.au, Thomas, David1, Swain, Mike V.2, Tyas, Martin J.1
Source: Biomaterials. Sep2004, Vol. 25 Issue 20, p5031. 5p.
Subjects: Weibull distribution, Dentin, Cell adhesion, Distribution (Probability theory)
Abstract: Tensile strength tests of restorative resins bonded to dentin, and the resultant strengths of interfaces between the two, exhibit wide variability. Many variables can affect test results, including specimen preparation and storage, test rig design and experimental technique. However, the more fundamental source of variability, that associated with the brittle nature of the materials, has received little attention. This paper analyzes results from micro-tensile tests on unfilled resins and adhesive bonds between restorative resin composite and dentin in terms of reliability using the Weibull probability of failure method. Results for the tensile strengths of Scotchbond Multipurpose Adhesive (3 M) and Clearfil LB Bond (Kuraray) bonding resins showed Weibull moduli (m) of 6.17 (95% confidence interval, 5.25–7.19) and 5.01 (95% confidence interval, 4.23–5.8). Analysis of results for micro-tensile tests on bond strengths to dentin gave moduli between 1.81 (Clearfil Liner Bond 2 V) and 4.99 (Gluma One Bond, Kulzer). Material systems with m in this range do not have a well-defined strength. The Weibull approach also enables the size dependence of the strength to be estimated. An example where the bonding area was changed from 3.1 to 1.1 mm diameter is shown. Weibull analysis provides a method for determining the reliability of strength measurements in the analysis of data from bond strength and tensile tests on dental restorative materials. [Copyright &y& Elsevier]
Copyright of Biomaterials 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.)
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DbLabel: Engineering Source
An: 12977617
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  Data: Analysis of tensile bond strengths using Weibull statistics
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  Data: <searchLink fieldCode="AR" term="%22Burrow%2C+Michael+F%2E%22">Burrow, Michael F.</searchLink><relatesTo>1</relatesTo><i> mfburrow@unimelb.edu.au</i><br /><searchLink fieldCode="AR" term="%22Thomas%2C+David%22">Thomas, David</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Swain%2C+Mike+V%2E%22">Swain, Mike V.</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Tyas%2C+Martin+J%2E%22">Tyas, Martin J.</searchLink><relatesTo>1</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Biomaterials%22">Biomaterials</searchLink>. Sep2004, Vol. 25 Issue 20, p5031. 5p.
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  Label: Abstract
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  Data: Tensile strength tests of restorative resins bonded to dentin, and the resultant strengths of interfaces between the two, exhibit wide variability. Many variables can affect test results, including specimen preparation and storage, test rig design and experimental technique. However, the more fundamental source of variability, that associated with the brittle nature of the materials, has received little attention. This paper analyzes results from micro-tensile tests on unfilled resins and adhesive bonds between restorative resin composite and dentin in terms of reliability using the Weibull probability of failure method. Results for the tensile strengths of Scotchbond Multipurpose Adhesive (3 M) and Clearfil LB Bond (Kuraray) bonding resins showed Weibull moduli (<f>m</f>) of 6.17 (95% confidence interval, 5.25–7.19) and 5.01 (95% confidence interval, 4.23–5.8). Analysis of results for micro-tensile tests on bond strengths to dentin gave moduli between 1.81 (Clearfil Liner Bond 2 V) and 4.99 (Gluma One Bond, Kulzer). Material systems with m in this range do not have a well-defined strength. The Weibull approach also enables the size dependence of the strength to be estimated. An example where the bonding area was changed from 3.1 to 1.1 mm diameter is shown. Weibull analysis provides a method for determining the reliability of strength measurements in the analysis of data from bond strength and tensile tests on dental restorative materials. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Biomaterials 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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        Value: 10.1016/j.biomaterials.2004.01.060
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      – Code: eng
        Text: English
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      – SubjectFull: Cell adhesion
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              M: 09
              Text: Sep2004
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              Y: 2004
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