Fracture resistance of endodontically treated teeth restored with multiple fiber posts

Puengpaiboon, U.; Padipatvuthikul, P.; Vetviriyakul, N.

doi:10.1016/j.dental.2013.08.110

Cited by 2 publications

(6 citation statements)

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“…A previous study reported that the role of fiber post insertion decreased when complete ferrules could be achieved. 14 In this study, a thin canal wall without a ferrule was tested. The role of fiber posts is therefore significant.…”

Section: Resultsmentioning

confidence: 99%

“…The average failure load was 655.2 N, which is higher than the maximum premolar chewing force. A previous study reported that the role of fiber post insertion decreased when complete ferrules could be achieved 14 . In this study, a thin canal wall without a ferrule was tested.…”

Section: Discussionmentioning

confidence: 95%

“…In recent times, some high strength core materials have been manufactured. Simply filling an entire canal with contemporary high strength core materials may be more effective to restore wide canal endodontically treated teeth compared to multiple fiber post restoration 14 . This speculation still needs to be confirmed.…”

Section: Introductionmentioning

confidence: 99%

“…Several previous studies revealed that restoration of endodontically treated teeth with a metal post and core provided the highest fracture resistance; however, catastrophic failure with apical root fracture occurred 7–10 . To overcome this problem, for a more compatible elastic modulus to dentin, a bonded post technique has been proposed in which fiber posts in combination with adhesive systems are used to form a dowel 11–14 . In a flared canal, many studies have shown that the use of a single fiber post with a composite core resulted in low fracture resistance of the restored tooth because of poor adaptation of the post to the root canal, creating a wide gap and a thick cement layer 8,15 .…”

Section: Introductionmentioning

confidence: 99%

“…[7][8][9][10] To overcome this problem, for a more compatible elastic modulus to dentin, a bonded post technique has been proposed in which fiber posts in combination with adhesive systems are used to form a dowel. [11][12][13][14] In a flared canal, many studies have shown that the use of a single fiber post with a composite core resulted in low fracture resistance of the restored tooth because of poor adaptation of the post to the root canal, creating a wide gap and a thick cement layer. 8,15 A thick layer of the resin cement induces air bubbles, shrinkage stresses, and predisposes the post to debonding.…”

Section: Introductionmentioning

confidence: 99%

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Fracture resistance of thin wall endodontically treated teeth without ferrules restored with various techniques

Iemsaengchairat

Aksornmuang

2021

J Esthet Restor Dent

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Objective To evaluate the fracture resistance and failure characteristics of simulated thin wall endodontically treated teeth without ferrules restored with various techniques. Materials and methods Forty‐eight human mandibular single‐root canal premolars were decoronated and endodontically treated. The 1 mm thick remaining root canal dentin was prepared. The roots were randomly divided into four groups of 12 roots according to the following post and core reconstruction techniques: direct resin composite post and core (CP), multiple fiber posts and resin composite core (FP), CAD/CAM anatomical post and core (AP), and metal cast post and core (MP). Full metal crowns were cemented to the cores. All specimens were subjected to thermocycling for 5000 cycles and submitted to axial compression until failure at a 45°angle using a universal testing machine. The failures were classified into one of the followings: post and/or core fractures, root fractures, and root fractures combined with post and/or core fractures. Results Average failure loads of groups CP, FP, AP, and MP were 360.0, 655.2, 402.7, and 856.1 N, respectively. MP provided the highest failure load, which was significantly higher than those of the other groups (p < 0.05). FP was second, being inferior to MP with a significance level of p = 0.039. CP exhibited the least failure load, and it was not significantly different from the AP group (p > 0.05). Root fractures were the major failure mode for most of the specimens except the CP group, in which composite fractures at the cervical level were commonly observed. Conclusion Metal cast post and core provided the highest fracture resistance for reconstruction of a thin wall in endodontically treated teeth without ferrules, followed by multiple fiber posts and resin composite core. The milled anatomical post and core and a direct resin composite post and core provided significantly lower fracture resistance. Clinical significance Metal cast posts and core and multiple fiber posts with resin composite core techniques were effective for restoring severely compromised endodontically treated teeth.

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Section: Resultsmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Fracture resistance of thin wall endodontically treated teeth without ferrules restored with various techniques

Iemsaengchairat

Aksornmuang

2021

J Esthet Restor Dent

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High Performance Composites Based on Highly Filled Glass Fiber-Reinforced Polybenzoxazine for Post Application

et al. 2022

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Glass fiber post based on the new polymeric material, polybenzoxazine, is prepared and the effects of glass fiber contents on mechanical and thermal properties are evaluated. The mechanical response to externally applied loads of tooth restored with glass fiber-reinforced polybenzoxazine composite posts is also simulated by finite element analysis of a tridimensional model and compared with the response to that of a natural tooth. The reinforcing of glass fiber can help improve the mechanical and thermal properties of the polybenzoxazine influenced by the interfacial adhesion between the glass fiber and polybenzoxazine matrix, except for the relatively high mechanical property of the glass fiber. The mechanical data, i.e., elastic modulus under flexure load or flexural modulus by three-point bending test of the glass fiber-reinforced polybenzoxazine composites are agreed with the elastic modulus of dentin and then used in the finite element model. The restoration using the glass fiber-reinforced polybenzoxazine composite post provided the maximum von Mises equivalent stress at the cervical third area of the endodontically treated tooth model as similarly observed in the natural tooth. In addition, the maximum von Mises equivalent stress of the tooth restored with the glass fiber-reinforced polybenzoxazine composite post is also quietly like that of the natural tooth. The finding of this work provided the essential properties of the glass fiber-reinforced polybenzoxazine composite for dental restorations and appliances.

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Fracture resistance of endodontically treated teeth restored with multiple fiber posts

Cited by 2 publications

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Fracture resistance of thin wall endodontically treated teeth without ferrules restored with various techniques

Fracture resistance of thin wall endodontically treated teeth without ferrules restored with various techniques

High Performance Composites Based on Highly Filled Glass Fiber-Reinforced Polybenzoxazine for Post Application

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