Effects of fiber reinforcement on adaptation and bond strength of a bulk-fill composite in deep preparations

Sadr, Alireza; Bakhtiari, Behnoush; Hayashi, Juri; Luong, Minh N.; Chen, Yen‐Wei; Chyz, Grant; Chan, Daniel C.N.; Tagami, Junji

doi:10.1016/j.dental.2020.01.007

Cited by 24 publications

(18 citation statements)

References 31 publications

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“…Although the studied bulk-fill resins are claimed to have less polymerization shrinkage and shrinkage stress compared to conventional composite materials [15], both F initial and F max values were similar to that of the conventional hybrid resin composite, CP. Although using bulk-fill composites should reduce the possibility of void formation or of cohesive failures between composite increments, the reduction in polymerization shrinkage and shrinkage stress is likely to reduce adhesion to the fibers [30].…”

Section: Discussionmentioning

confidence: 99%

Fatigue strength and Weibull characteristics of fiber-reinforced inlay-retained resin-bonded fixed dental prosthesis: could bulk-fill composites substitute hybrid resin composite?

Schoch

Özcan²

2021

Journal of Adhesion Science and Technology

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Section: Discussionmentioning

confidence: 99%

Fatigue strength and Weibull characteristics of fiber-reinforced inlay-retained resin-bonded fixed dental prosthesis: could bulk-fill composites substitute hybrid resin composite?

Schoch

Özcan²

2021

Journal of Adhesion Science and Technology

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“…Therefore, the reduction of the polymerisation shrinkage is key to a long-term success [10]. One possible method for achieving this is the application of dental fibre reinforcement, which reduces the risk of separation, by absorbing the stress caused by shrinkage [11]. Another possible solution is Semi-Direct dentin replacement, where the polymerisation takes place outside of the tooth, which is advantageous because the hybrid layer is not subjected to direct tensile stress due to the polymerisation shrinkage of the composite filling, and the hybrid layer has enough time to develop a stronger bond [12].…”

Section: Biomimeticsmentioning

confidence: 99%

Examination of Glass-Fibre Reinforced Composite Dental Fillings

Borhy

Farkas²,

Volom³

2021

Acta Materialia Transylvanica

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In dentistry, the use of dental fillings is a routine procedure. The use of fillings is a cheap, simple and low-harm dental operation, however, the filling of deep cavities is a difficult task. During this research, three types of fillings were tested: composite fillings bonded directly to the cavity walls, fillings bonded to the cavity walls with a semi-direct method, and composite fillings bonded to the cavity lined with polyethylene fibres. In the course of our examinations, the gaps between the wall of the dental cavity and the dental filling were observed using scanning electron microscopy. The results of these measurements can be used to determine the quality of each type of filling procedure.

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“…In order to overcome these problems, the benefits of glass ionomer cement (GIC) and the strength of composites can be combined together to produce optimal results [5][6][7]. Although GIC has poor physical and mechanical properties, such as decreased wear resistance, toughness, strength, and brittleness, one cannot ignore the benefits of GIC, i.e., biocompatibility with dental pulp, and resistance to dental caries [8,9].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Shear Bond Strength between Resin Composites and Conventional Glass Ionomer Cement in Class II Restorative Technique—An In Vitro Study

et al. 2022

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The success of dental restorations depends mainly on the ability to bond to other filling materials and tooth substances, in order to resist the multitude of forces acting on the bond within the oral cavity. Although the shortcomings of composite resins have been significantly reduced over the past three decades, microleakage due to shrinkage under masticatory loads is unavoidable. In order to overcome such problems, two materials laminated with matched properties can be used to achieve optimum results. The sandwich technique is an approach in which dentine is replaced by glass ionomer cement (GIC), and enamel is replaced by composite resin. In the past, numerous materials have been proposed with adequate properties to be used in this manner, but the results are conflicting in terms of bonding to the various forms of GIC, and the appearance of microcracks or gap formation during functional loading. This study aimed to evaluate the shear bond strength (SBS) and mode of failure between the following core materials: composite resins (CR) (Methacrylate Z350™, Ceram X™, and Spectrum™) with a base material of glass ionomer cement (GIC, Ketac Molar™). Eight samples were made with the help of polytetrafluoroethylene sheets (TEFLON, Wilmington, DE, USA). Each sheet consisted of holes which were 4 mm in diameter and 2 mm in thickness. The combination of materials was sandwiched. The samples were stored in distilled water and then placed in an incubator for 24 h in order to ensure complete polymerization. The samples were thermocycled for 500 cycles between 5–55 °C/ 30 s. Following thermocycling, SBS testing was performed using a universal testing machine. Additionally, scanning electron microscopy (SEM) was performed on representative samples for the bond failure analysis between GIC and the composite resins. The Ceram-X™ nanocomposite showed significantly higher bond strength than Methacrylate Z350™ or Spectrum™ (p = 0.002). The Methacrylate Z350™ and the Spectrum™ composite specimens demonstrated a similar SBS (p = 0.281). The SBS of the Ceram X™ to GIC was the highest compared to Methacrylate Z350™ and Spectrum™. Therefore Ceram X™ may produce a better bond with GIC, and may protect teeth against recurrent caries and failure of the restoration. Methacrylate Z350™ is comparable to Spectrum™ CR and can be used as an alternative. A combination of adhesive and mixed failure was observed in Methacrylate Z350™ CR and GIC, while adhesive failure was predominantly found in both Ceram X™ and Spectrum™ with GIC restorations.

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Effects of fiber reinforcement on adaptation and bond strength of a bulk-fill composite in deep preparations

Cited by 24 publications

References 31 publications

Fatigue strength and Weibull characteristics of fiber-reinforced inlay-retained resin-bonded fixed dental prosthesis: could bulk-fill composites substitute hybrid resin composite?

Fatigue strength and Weibull characteristics of fiber-reinforced inlay-retained resin-bonded fixed dental prosthesis: could bulk-fill composites substitute hybrid resin composite?

Examination of Glass-Fibre Reinforced Composite Dental Fillings

Evaluation of Shear Bond Strength between Resin Composites and Conventional Glass Ionomer Cement in Class II Restorative Technique—An In Vitro Study

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