Effect of Fiber-Reinforced Composite and Elastic Post on the Fracture Resistance of Premolars with Root Canal Treatment—An In Vitro Pilot Study

Mena-Álvarez, Jesús; Agustín-Panadero, Rubén; Zubizarreta-Macho, Álvaro

doi:10.3390/app10217616

Cited by 6 publications

(5 citation statements)

References 33 publications

(48 reference statements)

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“…This research may also contribute to other high-aspect ratio sustainable biomaterials, which are complementary alternatives to carbon nanotubes. For example, fiber-reinforced composites (FRCs) [ 74 ] or cellulose nanocrystals (CNCs) [ 75 ] meet the criteria and can have potential applications in the preparation of composites for dentistry [ 76 ] and food packaging [ 77 ] fields, respectively.…”

Section: Discussionmentioning

confidence: 99%

Molecular Dynamics Simulation of Coiled Carbon Nanotube Pull-Out from Matrix

Huang

Zhou

2022

IJMS

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The interaction between coiled carbon nanotubes (CCNT) and the polymer matrix is important in the mechanical, thermal, and electrical properties of the CCNT reinforced nanocomposite. In this study, molecular dynamics (MD) simulations were performed to study the interfacial characteristics of polymer nanocomposites (PNCs). Furthermore, the influence of the geometries of the CCNTs on the load transfer mechanism is evaluated. Pullout simulations considering different geometries of CCNTs are carried out to examine the tensile force and the interfacial shear stress (ISS). The results reveal that the maximal tensile force is reduced by increasing CCNT inner diameters, increasing the helix angles, and decreasing nanotube diameters. The distance between CCNTs and the polymer matrix is varied, and the interfacial distance favors greater ISS. Decreasing the inner diameter of the CCNT, the helix angle, and the tube diameter increases the ISS. The enhancement mechanism of CCNT/polymer composites has also been illustrated. Due to a lack of experimental results, only numerical results are given. The present study helps to understand the interfacial adhesion behavior between the polymer matrix and CCNTs and is expected to contribute to the development of CCNT reinforced polymer composites.

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Section: Discussionmentioning

confidence: 99%

Molecular Dynamics Simulation of Coiled Carbon Nanotube Pull-Out from Matrix

Huang

Zhou

2022

IJMS

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“…The bond strength among restorative materials and dental tissues must be effective at the interface of the restored cavity, mimicking the mechanical properties of lost mineralized tissues and limiting marginal leakage and cusp deflection [ 19 , 20 ]. Morphology, function and esthetics must also be replicated [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

Computer Aided Design Modelling and Finite Element Analysis of Premolar Proximal Cavities Restored with Resin Composites

et al. 2021

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This study evaluated the stress distribution in five different class II cavities of premolar models restored with conventional or bulk-fill flowable composite by means of finite element analysis (FEA) under shrinkage and occlusal loading. An upper validated premolar model was imported in the software, and five class II cavities with different occlusal extensions and dimensions were prepared: horizontal cavity on the mesial surface (horizontal slot), mesio-occlusal cavity, mesial cavity (vertical slot), tunnel type cavity and direct access cavity. The models were restored with conventional or bulk-fill flowable resin composite. The tested materials were considered as homogeneous, linear, and isotropic. The Maximum Principal Stress criteria was chosen to evaluate the tensile stress results. The lowest shrinkage stress value was observed in the direct access cavity restored with bulk-fill flowable resin composite (36.12 MPa). The same cavity, restored with conventional composite showed a score of 36.14 MPa. The horizontal slot cavity with bulk-fill flowable showed a score of 46.71 MPa. The mesio-occlusal cavity with bulk-fill flowable had a score of 53.10 MPa, while with conventional composite this was 55.35 MPa. Higher shrinkage stress was found in the vertical slot cavity with conventional resin 56.14 MPa, followed by the same cavity with bulk-fill flowable 56.08 MPa. Results indicated that the use of bulk-fill flowable composite resin more significantly decreased the polymerization shrinkage stress magnitude. The larger the cavity and the volume of material necessary to restore the tooth, the greater the residual stress on enamel and dentin tissue.

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“…Mena-Álvarez et al (2020) concluded in their study that the fracture resistance of endodontically upper premolar tooth whose restoration was done with glass fiber-reinforced posts recorded increased fracture strength [16]. ManHart (2021) also applauds glass fiber-reinforced composites, asserting that they have satisfactory biochemical properties [17].…”

Section: Brożek Et Al (2019) [9]mentioning

confidence: 99%

Efficacy of Glass Fiber Composite Restoration: A Systematic Review

Turkistani¹,

Alotaibi²,

Alanazi³

et al. 2022

Arch Pharm Pract

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Fibers can be used as restorative materials during post-endodontic treatment to avoid tooth fractures. Fibers can modify the stress by initiating a Monoblock effect that aids to dispel the stress along the tooth's long axis. Fibers can also prevent the formation of cracks due to the dispersal of stress to the fibers from the polymer matrix. Glass fiber-reinforced composite is one of the materials that can be used in dentistry for restoration. It is known that enclosing glass fibers into a resin matrix produces glass fiber-reinforced composites. The objective of this study was to evaluate the efficacy of glass fiber-reinforced composite restoration. This study utilized a systematic review that involved searching the literature and selecting articles for review based on the set criteria for exclusion and inclusion. The study established that glass fiberreinforced composite restoration recorded favorable outcomes compared to other non-fiber-reinforced composite materials and other composite materials. Glass fiber-reinforced composite materials are appropriate to be used for restoration based on their clinical efficacy.

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Effect of Fiber-Reinforced Composite and Elastic Post on the Fracture Resistance of Premolars with Root Canal Treatment—An In Vitro Pilot Study

Cited by 6 publications

References 33 publications

Molecular Dynamics Simulation of Coiled Carbon Nanotube Pull-Out from Matrix

Molecular Dynamics Simulation of Coiled Carbon Nanotube Pull-Out from Matrix

Computer Aided Design Modelling and Finite Element Analysis of Premolar Proximal Cavities Restored with Resin Composites

Efficacy of Glass Fiber Composite Restoration: A Systematic Review

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