Effect of fiber architecture on flexural characteristics and fracture of fiber-reinforced dental composites

Karbhari, Vistasp M.; Strassler, Howard E.

doi:10.1016/j.dental.2006.08.003

Cited by 60 publications

(58 citation statements)

References 18 publications

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“…However, while simple to perform, flexural testing assesses only the performance of a material under single loading condition. In clinical situations, the stresses applied are far more complicated and occur in multidirectional patterns 35) . The flexural strengths of all groups in this study fulfilled the minimum requirement specified by ISO 4049, which states a value of 50 MPa.…”

Section: Discussionmentioning

confidence: 99%

Fracture of fiber-reinforced composites analyzed <i>via</i> acoustic emission

2015

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This study investigated the fracture resistance of composite resins using a three-point bending test and acoustic emission (AE) analysis. Three groups of specimens (n=15) were prepared: non-reinforced BelleGlass HP composite (NRC), unidirectional (UFRC) and multidirectional (MFRC) fiber-reinforced groups which respectively incorporated unidirectional Stick and multidirectional StickNet fibers. Specimens were loaded to failure in a universal testing machine while an AE system was used to detect audible signals. Initial fracture strengths and AE amplitudes were significantly lower than those at final fracture in all groups (p<0.05). Initial fracture strength of UFRC (170.0 MPa) was significantly higher than MFRC (124.6 MPa) and NRC (87.9 MPa). Final fracture strength of UFRC (198.1 MPa) was also significantly higher than MFRC (151.0 MPa) and NRC (109.2 MPa). Initial and final fracture strengths were significantly correlated (r=0.971). It was concluded that fiber reinforcement improved the fracture resistance of composite resin materials and the monitoring of acoustic signals revealed significant information regarding the fracture process.

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Section: Discussionmentioning

confidence: 99%

Fracture of fiber-reinforced composites analyzed <i>via</i> acoustic emission

2015

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“…Ribbond provides an increase in the flexural strength and in the flexural modulus of the composite resins, that resist cracking [14].…”

Section: Discussionmentioning

confidence: 99%

Creating a Single-Visit, Fibre-Reinforced, Composite Resin Bridge by Using a Natural Tooth Pontic: A Viable Alternative to a PFM Bridge

Khetarpal

Talwar²,

Verma³

2013

JCDR

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Background: The rehabilitation of an anterior tooth space presents a confronting situation. Several modalities are presently available to address the challenge of an immediate replacement of a missing anterior tooth. These include a removable temporary acrylic prosthesis or resin-bonded bridges. Fibre-Reinforced Composite (FRC) bridges are preferable if they are fixed and if a cost-effective tooth replacement is desired. Also, they provide an aesthetic and a conservative treatment choice as the abutment teeth require a minimal or no preparation.Methods: This article is describing two cases with an immediate replacement of the maxillary incisor teeth by a single visit technique, with the use of FRC Resin (Ribbond) bridges and natural tooth crowns as pontics. Results and Conclusions:The procedure was completed at the chair side, thereby avoiding the laboratory costs. A two year follow up of the cases has shown a successful outcome.Creating an adhesive FRC bridge by using a natural tooth pontic is a successful treatment option for the direct aesthetic replacement of missing anterior teeth.

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“…Rich-resin areas may also result from architecture modification during handling. 22 Fiber orientation of biaxially braided material may also change after cutting and embedding into the composite when adapting to tooth contours. The fibers in the ribbon spread out and separate from each other, losing the integrity of the fabric architecture.…”

Section: Discussionmentioning

confidence: 99%

Direct Fiber-reinforced Composite Restoration in an Endodontically-treated Molar: A Three-year Case Report

Deliperi¹

2008

Operative Dentistry

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SUMMARYThe reconstruction of structurally compromised non-vital posterior teeth may represent one of the most challenging adhesive-based restorative procedures. Several factors may influence the longevity of direct fiber-reinforced resin composite restorations: endodontic procedures prior to post cementation, dentin and/or post surface treatments, selection of the appropriate post design and architecture, resin composite polymerization and layering techniques. Thus, different specialties, such as endodontics and restorative dentistry, should work as a team to improve the longevity of restorations. This article presents three-year clinical results following reconstruction of a severely damaged endodonticallytreated molar using direct fiber reinforced resin composite systems. INTRODUCTIONEndodontically-treated teeth are weakened because of a decrease in water content and loss of dentin.1 The decay process and/or tooth fracture may be responsible for the structural weakening of non-vital teeth; the tooth preparation required for adequate endodontic treatment may also contribute to the increased fragility. 2After endodontic therapy, selecting the appropriate reconstruction for each non-vital tooth should be based on the remaining hard tooth structure, the number and thickness of the residual cavity walls, the position of the tooth in the arch and the load implied. Resin bonded composite (RBC) restorations showed a strengthening effect on the tooth structure, with fracture resistance similar to that of unaltered teeth.3-5 For many years, direct adhesive restorations have been used for anterior teeth with conservative endodontic access and intact marginal ridges.1,6-7 Posterior non-vital teeth with an intracoronal conservative access only have also been restored with direct RBC. 4 Conversely, for many years, full coverage restorations have been indicated when the teeth are weakened by additional cavities on both the anterior and posterior area. [8][9] With the use of improved adhesive systems in the last decade, clinicians started Clinical RelevanceThe proper utilization of fiber-reinforced resin composite restorations in endodontically-treated molars may preclude the use of more extensive restorative treatment, possibly delaying the need for expensive indirect restorations.

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Effect of fiber architecture on flexural characteristics and fracture of fiber-reinforced dental composites

Cited by 60 publications

References 18 publications

Fracture of fiber-reinforced composites analyzed <i>via</i> acoustic emission

Fracture of fiber-reinforced composites analyzed <i>via</i> acoustic emission

Creating a Single-Visit, Fibre-Reinforced, Composite Resin Bridge by Using a Natural Tooth Pontic: A Viable Alternative to a PFM Bridge

Direct Fiber-reinforced Composite Restoration in an Endodontically-treated Molar: A Three-year Case Report

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