Fatigue behaviour of dental composite materials

Drummond, James L.; Lin, Lihong; Al-Turki, Lulwa A.; Hurley, Ryan K.

doi:10.1016/j.jdent.2008.12.008

Cited by 40 publications

(26 citation statements)

References 21 publications

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“…The effect of mechanical fatigue is highlighted by the progressive deterioration of K Ic with the number of loading cycles, because the matrix phase is especially vulnerable to repetitive strain challenges. Consequently, higher degrees of conversion (DC) in the resin matrix result in greater fatigue resistance, as has been shown for heat-processed composites (Drummond et al, 2009;Lin and Drummond, 2010).…”

Section: Fatigue Degradation and Phenomenological Lifetime Predictionmentioning

confidence: 95%

Factors Involved in Mechanical Fatigue Degradation of Dental Resin Composites

2013

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The design of clinical trials allows for limited insights into the fatigue processes occurring in resin composites and the factors involved therein. In vitro studies, in contrast, can fundamentally narrow study interests to focus on particular degradation mechanisms and, to date, represent the major contributors to the state of knowledge on the subject. These studies show that microstructural features are important in determining strength and fracture toughness, whereas fatigue resistance is mainly related to the susceptibility of the matrix and the filler/matrix interface to mechanical and chemical degradation. In this review, we focus on fracture mechanisms occurring during fatigue, on the methods used to assess them, and on additional phenomena involved in the degradation of initial mechanical properties of resin composites.

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Section: Fatigue Degradation and Phenomenological Lifetime Predictionmentioning

confidence: 95%

Factors Involved in Mechanical Fatigue Degradation of Dental Resin Composites

2013

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“…Fracture toughness values and flexural properties are dependent on the physical properties and chemical composition of the individual components of a restorative material 9) . A material which has high fracture toughness and flexural properties has enhanced abilities to resist crack initiation and propagation 10) . Consequently, the properties of fracture toughness and flexural properties become important criteria for a dental material's longevity 11) .…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties, volumetric shrinkage and depth of cure of short fiber-reinforced resin composite

Tsujimoto

Barkmeier

Takamizawa

et al. 2016

Dental Materials Journal

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The mechanical properties, volumetric shrinkage and depth of cure of a short fiber-reinforced resin composite (SFRC) were investigated in this study and compared to both a bulk fill resin composite (BFRC) and conventional glass/ceramic-filled resin composite (CGRC). Fracture toughness, flexural properties, volumetric shrinkage and depth of cure of the SFRC, BFRC and CGRC were measured. SFRC had significantly higher fracture toughness than BFRCs and CGRCs. The flexural properties of SFRC were comparable with BFRCs and CGRCs. SFRC showed significantly lower volumetric shrinkage than the other tested resin composites. The depth of cure of the SFRC was similar to BFRCs and higher than CGRCs. The data from this laboratory investigation suggests that SFRC exhibits improvements in fracture toughness, volumetric shrinkage and depth of cure when compared with CGRC, but depth of cure of SFRC was similar to BFRC.

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“…15 With the increased demand for tooth-coloured restorations as well as advances in adhesive technology, resin composite has become the main material of choice for anterior and posterior restorations. Though concerns exist such as polymerization shrinkage stress, and susceptibility to aging degradation, 16,17 resin composites are a successful and popular means of restoring teeth. Despite advances in preventive dentistry, posterior proximal caries is remains a challenge in contemporary practice.…”

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confidence: 99%