Polymerization shrinkage stress kinetics and related properties of bulk-fill resin composites

H. M. El-Damanhoury, Jeffrey Platt

Research output: Contribution to journalArticle

93 Citations (Scopus)

Abstract

The present study assessed the polymerization shrinkage stress kinetics of five low-shrinkage light-cured bulk-fill resin composites: Surefil SDR flow (SF, Dentsply), Tetric EvoCeram Bulkfil (TE, Ivoclar Vivadent), Venus Bulk Fill (VB, Heraeus Kulzer), x-tra fil (XF, Voco), and experimental bulk fill (FB, 3M ESPE). Filtek Z250 (FZ, 3M ESPE) was used as a control. Real-time shrinkage stress of investigated composites was measured using a tensometer; maximum shrinkage stress, stress rate (Rmax), and time to reach maximum stress rate (tmax) were recorded. Flexural strength and modulus were measured using a standard procedure, and curing efficiency of 4-mm long specimens was determined using bottom/top percentage Knoop microhardness. Data were analyzed using one-way analysis of variance and Bonferroni multiple range tests at a significance level of α=0.05. Results of shrinkage stress, Rmax, and tmax of all bulk-fill materials were significantly lower (p

Original languageEnglish (US)
Pages (from-to)374-382
Number of pages9
JournalOperative Dentistry
Volume39
Issue number4
DOIs
StatePublished - 2014

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Composite Resins
Polymerization
Venus
Analysis of Variance
Light
inzoma
Vivadent
Tetric EvoCeram
Filtek Z250
Surefil SDR Flow
CMW cement

ASJC Scopus subject areas

  • Dentistry(all)

Cite this

Polymerization shrinkage stress kinetics and related properties of bulk-fill resin composites. / El-Damanhoury, H. M.; Platt, Jeffrey.

In: Operative Dentistry, Vol. 39, No. 4, 2014, p. 374-382.

Research output: Contribution to journalArticle

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