Probing the origins and control of shrinkage stress in dental resin composites. II. Novel method of simultaneous measurement of polymerization shrinkage stress and conversion

Journal of Biomedical Materials Research. Part B, Applied Biomaterials
H LuChristopher N Bowman

Abstract

This study probes the interrelationships between polymerization shrinkage stress development and the polymerization progress with a novel experimental technique. This technique is capable of real time, simultaneous measurement of double-bond conversion and shrinkage stress with the use of a noninvasive near-infrared fiber-optic system, along with a cantilever beam-based tensometer. The results from both filled and unfilled bis-GMA/TEGDMA (70:30 mass ratio) systems showed that the shrinkage stress buildup was concentrated in the latter stages of polymerization, with its dramatic increase linked to the asymptotic approach of conversion to its limiting value. The monotonic increase of shrinkage stress with conversion in the vitrified state is attributed to the dramatic increase of the sample's elastic modulus during the vitrification stage and a certain amount of cooling stress as the sample cools down from the temperature rise caused by the exothermic polymerization and light absorption. Excellent reproducibility of both the polymerization kinetics assessment and the shrinkage stress measurement has been achieved.

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Citations

Oct 2, 2013·Dental Materials : Official Publication of the Academy of Dental Materials·Dalia A Abu-elenainJeffrey W Stansbury
Oct 7, 2010·Journal of Dental Research·N B CramerC N Bowman
Jul 12, 2011·Operative Dentistry·N A El-SahnJ A Platt
Mar 29, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Parag K Shah, Jeffrey W Stansbury
Dec 3, 2014·Dental Materials : Official Publication of the Academy of Dental Materials·Zhengzhi WangMartin Y M Chiang
Feb 11, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Yongwen GuoMartin Y M Chiang
Dec 24, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Jeffrey W Stansbury
Mar 11, 2011·Dental Materials : Official Publication of the Academy of Dental Materials·Rafael R MoraesJeffrey W Stansbury
Sep 29, 2009·Dental Materials : Official Publication of the Academy of Dental Materials·Neil B CramerChristopher N Bowman
Sep 30, 2008·Dental Materials : Official Publication of the Academy of Dental Materials·Christof KoplinPetra Hahn
Oct 27, 2007·Journal of Dentistry·Fernanda Calabró CalheirosRoberto Ruggiero Braga
Feb 27, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Zhengzhi Wang, Martin Y M Chiang
Oct 10, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Christophe ChartonFernand Pla
Sep 5, 2006·Dental Materials : Official Publication of the Academy of Dental Materials·Susannah K TomlinsonKenneth E Evans
Jul 28, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Hui LuChristopher N Bowman
Jul 28, 2005·Dental Materials : Official Publication of the Academy of Dental Materials·Jacquelyn A CariosciaChristopher N Bowman
Oct 23, 2016·Dental Materials : Official Publication of the Academy of Dental Materials·Han Byul SongChristopher N Bowman
Oct 24, 2008·Journal of Dental Research·C S PfeiferR R Braga
Aug 20, 2005·Journal of Dental Research·H LuC N Bowman
Nov 25, 2014·Journal of Applied Polymer Science·Caroline R Szczepanski, Jeffrey W Stansbury
Jul 28, 2005·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·L Feng, B I Suh
Feb 14, 2006·Journal of Biomedical Materials Research. Part B, Applied Biomaterials·L Feng, B I Suh
Aug 20, 2016·Odontology·Dalia Kaisarly, Moataz El Gezawi
Dec 24, 2019·Dental Materials : Official Publication of the Academy of Dental Materials·Sri Vikram PalagummiMartin Y M Chiang
Oct 11, 2011·Macromolecules·Kathleen M SchreckChristopher N Bowman
Jan 20, 2021·ACS Biomaterials Science & Engineering·Alireza AminoroayaSeeram Ramakrishna

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