[Effect of filler content of composite resins on polymerization shrinkage measured by a video imaging apparatus (Acuvol)].

Bing Han, Yan mei Dong, Xiao yan Wang, Fucong Tian, Xue jun Gao

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

To investigate the effect of filler content on the polymerization shrinkage of resins and to evaluate whether Acuvol is a simple and easy method in volumetric shrinkage measurement. Six experimental resins with filler contents of 80%, 78%, 76%, 70%, 60%, and 50% were made. Three commercial resins were Syn D6 with 80% filler content, Syn Compact Nano with 74% filler content and Syn Flow with 55% filler content(using the mass fraction to express the filler content). Small semi-sphere samples of these composites were manually formed and light cured for 40 s using a quartz tungsten halogen unit at 650 mW/cm2 (n=10). The volumetric shrinkage was measured in both SVVR and MVVR modes using Acuvol. The volumetric shrinkage of the three commercial resins were: Syn Flow > Syn Compact Nano > Syn D6. The shrinkage values of the six experimental resins with different filler contents were: 50% > 60% > 70% > 76% > 78% > 80%. The negative correlation between filler content and volumetric shrinkage of commercial and experimental resins were strongly (-0.982 and -0.968 respectively, P<0.001). No significant difference between SVVR and MVVR modes (t=0.385, P>0.05). The present results support the view that filler content is one of the most important factors influencing polymerization shrinkage of composites. Acuvol provides an easy method for measuring polymerization shrinkage of composites. Both SVVR and MVVR modes of Acuvol give reproducible results.

Original languageEnglish (US)
Pages (from-to)582-585
Number of pages4
JournalBeijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences
Volume42
Issue number5
StatePublished - Oct 18 2010
Externally publishedYes

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Composite Resins
Polymerization
Tungsten
Quartz
Halogens
Light

ASJC Scopus subject areas

  • Medicine(all)

Cite this

[Effect of filler content of composite resins on polymerization shrinkage measured by a video imaging apparatus (Acuvol)]. / Han, Bing; Dong, Yan mei; Wang, Xiao yan; Tian, Fucong; Gao, Xue jun.

In: Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciences, Vol. 42, No. 5, 18.10.2010, p. 582-585.

Research output: Contribution to journalArticle

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