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Role of the beam profile and sample geometry in the bonded-disk method on the shrinkage kinetics of two dental resins.

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Title: Role of the beam profile and sample geometry in the bonded-disk method on the shrinkage kinetics of two dental resins.
Authors: Kostylev, I.1, Winters, T.1, Labrie, D.1 Daniel.labrie@dal.ca, Price, R.B.T.2
Source: Dental Materials. Aug2016, Vol. 32 Issue 8, p1026-1035. 10p.
Subjects: Dental resins, Interferometry, Viscoelasticity, Polymerization kinetics, Geometric analysis, Beam splitters
Abstract: Objective To investigate the time evolution of the two dimensional axial shrinkage field for two dental resins in the bonded disk geometry and further test the bonded-disk method. Methods An interferometric technique employing a camera was used to image the 2D axial shrinkage field when polymerizing dental resins in real time both during and after light exposure. Four different beam profiles from two light curing units and three sample geometries were utilized to investigate their roles on the 2D axial shrinkage field. Results The 2D axial shrinkage field correlates qualitatively with the beam profile shortly after the start of light exposure but takes on distinct shapes caused by the rigidity of the coverslip, beam profile, and the resin viscoelasticity. Significance Using the conventional bonded disk geometry and uniform beam profile from a light curing unit, the axial 2D shrinkage field was uniform to within 4% in the central part of bonded disk samples. [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: 116630681
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Role of the beam profile and sample geometry in the bonded-disk method on the shrinkage kinetics of two dental resins.
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  Data: <searchLink fieldCode="AR" term="%22Kostylev%2C+I%2E%22">Kostylev, I.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Winters%2C+T%2E%22">Winters, T.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Labrie%2C+D%2E%22">Labrie, D.</searchLink><relatesTo>1</relatesTo><i> Daniel.labrie@dal.ca</i><br /><searchLink fieldCode="AR" term="%22Price%2C+R%2EB%2ET%2E%22">Price, R.B.T.</searchLink><relatesTo>2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Dental+Materials%22">Dental Materials</searchLink>. Aug2016, Vol. 32 Issue 8, p1026-1035. 10p.
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  Data: <searchLink fieldCode="DE" term="%22Dental+resins%22">Dental resins</searchLink><br /><searchLink fieldCode="DE" term="%22Interferometry%22">Interferometry</searchLink><br /><searchLink fieldCode="DE" term="%22Viscoelasticity%22">Viscoelasticity</searchLink><br /><searchLink fieldCode="DE" term="%22Polymerization+kinetics%22">Polymerization kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Geometric+analysis%22">Geometric analysis</searchLink><br /><searchLink fieldCode="DE" term="%22Beam+splitters%22">Beam splitters</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Objective To investigate the time evolution of the two dimensional axial shrinkage field for two dental resins in the bonded disk geometry and further test the bonded-disk method. Methods An interferometric technique employing a camera was used to image the 2D axial shrinkage field when polymerizing dental resins in real time both during and after light exposure. Four different beam profiles from two light curing units and three sample geometries were utilized to investigate their roles on the 2D axial shrinkage field. Results The 2D axial shrinkage field correlates qualitatively with the beam profile shortly after the start of light exposure but takes on distinct shapes caused by the rigidity of the coverslip, beam profile, and the resin viscoelasticity. Significance Using the conventional bonded disk geometry and uniform beam profile from a light curing unit, the axial 2D shrinkage field was uniform to within 4% in the central part of bonded disk samples. [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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        Value: 10.1016/j.dental.2016.05.010
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        Text: English
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      – SubjectFull: Viscoelasticity
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      – SubjectFull: Polymerization kinetics
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      – SubjectFull: Geometric analysis
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              Text: Aug2016
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