Reduced polymerization stress through non-bonded nanofiller particles

John R. Condon, Jack Ferracane

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

The stress that results from the placement of dental composite in a confined setting compromises the integrity of the marginal seal. Dental composites which include nanofiller particles that are not treated with a functional agent to couple them to the resin matrix can result in lower stress levels. Three types of nanofillers were evaluated having either a functional silane coating, a non-functional silane coating, or no coating. These were added at five different vol% levels to a photo-sensitized mixture of three dimethacrylate monomers alone or at three different vol% levels to the same resin filled with mini-filler particles to a clinically realistic level. The stress generated by these materials when cured in a confined setting was measured in a mechanical testing machine. The effect of monomer molecular weight on the stress levels was evaluated by preparing three resin formulations with varied co-monomer levels and filling them with bonded or non-bonded nanofillers. Reductions in polymerization stress of up to 31% were achieved among both the nanofilled resins and the mini-filled composite. The materials which contained a heightened level of diluent monomer produced significantly higher stress levels (ANOVA/Tukey's test, p

Original languageEnglish (US)
Pages (from-to)3807-3815
Number of pages9
JournalBiomaterials
Volume23
Issue number18
DOIs
StatePublished - 2002

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Silanes
Polymerization
Tooth
Resins
Monomers
Dental composites
Analysis of Variance
Molecular Weight
Coatings
Mechanical testing
Analysis of variance (ANOVA)
Seals
Fillers
Molecular weight
Composite materials

Keywords

  • Composite
  • Dentistry
  • Nanofiller
  • Polymerization
  • Silanation
  • Stress

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Biomedical Engineering

Cite this

Reduced polymerization stress through non-bonded nanofiller particles. / Condon, John R.; Ferracane, Jack.

In: Biomaterials, Vol. 23, No. 18, 2002, p. 3807-3815.

Research output: Contribution to journalArticle

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