Chiang, M.
, Giuseppetti, A.
, Dunkers, J.
, Qian, J.
, Lin-Gibson, S.
, Schumacher, G.
and Antonucci, J.
(2011),
Analyses of a Cantilever-Beam Based Instrument for Evaluating the Development of Polymerization Stresses, Dental Materials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=906870
(Accessed October 9, 2025)
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Analyses of a Cantilever-Beam Based Instrument for Evaluating the Development of Polymerization Stresses
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Abstract
Analytical and finite element analyses have been performed on a cantilever-beam based methodology (tensometer) for evaluating the development of stresses as the concomitant of constrained polymerization shrinkage. A guideline for designing a tensometer satisfying necessary requirements for the accuracy of evaluation have been provided on the basis of a formula for deducing the polymerization stresses (PS) and the instrument sensitivity to the presence of shrinkage. The result of PS evaluation on a commercial dental composite, using our new tensometer designed according to analyses, gives a right trend in the development of PS. This has demonstrated the importance of beam dimensions and relative rigidity of components in the tensometer system on the accuracy of the evaluation.Citation
Dental Materials
Pub Type
Journals
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Keywords
polymerization shrinkage, stress, tensometer, cantilever beam, dental composites, Dentistry
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Created August 9, 2011, Updated July 22, 2024