Do Metal Post–retained Restorations Result in More Root Fractures than Fiber Post–retained Restorations? A Systematic Review and Meta-analysis

Figueiredo, Fabrício Eneas Diniz de; Martins-Filho, Paulo Ricardo; Faria-e-Silva, André Luís

doi:10.1016/j.joen.2014.10.006

Cited by 160 publications

(148 citation statements)

References 21 publications

(26 reference statements)

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“…In this sense, several materials have been suggested for intracanal and coronal restoration of endodontically treated teeth. However, those materials must provide adhesion to dentine and core and appropriate distribution of masticatory forces along root long axis (3).…”

Section: Introductionmentioning

confidence: 99%

“…In vivo and in vitro studies have demonstrated that glass fiber posts (GFP) associated with composite resin cores are an excellent approach for restoration of endodontically treated teeth compared to metallic post-and-core and prefabricated metallic posts as a result of excellent clinical performance (1,3,4). The GFPs present mechanical properties, such as elasticity modulus, similar to dentine which reduces the risk to root fracture (4).…”

Section: Introductionmentioning

confidence: 99%

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Evaluation of Stress Distribution in Endodontically Weakened Teeth Restored with Different Crown Materials: 3D-FEA Analysis

et al. 2017

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This study evaluated the stress distribution in endodontically treated teeth, weakened (W) or not weakened (NW), restored with different materials of prosthetic crown using 3D-FEA. Models of a maxillary canine were constructed based on micro-CT images and divided into the groups: G1 (control) -sound tooth; G2 to G7 -endodontically treated teeth restored with glass fiber post (GFP); which G2 to G4 simulated NW root and G5 to G7 simulated W root. For crown material the teeth were restored with: G2 and G5: metallic coping and ceramic veneering, G3 and G6: zirconia coping and ceramic veneering, G4 and G7: alumina coping and ceramic veneering. Load of 180 N was applied at the incisal third of lingual surface at 45º. Models were supported by the periodontal ligament (x=y=z=0). The von Mises stress (VMS) values were calculated. The W teeth presented higher VMS at coping when compared to NW teeth and group G1 showed lower VMS value. For crown material, for both W or NW teeth, increasing VMS was found at metallic, zirconia and alumina coping, respectively. Metallic coping showed a better performance despite its unfavorable esthetics, suggesting as an appropriate material for prosthetic restoration of endodontically treated teeth.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Evaluation of Stress Distribution in Endodontically Weakened Teeth Restored with Different Crown Materials: 3D-FEA Analysis

et al. 2017

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“…Depending on the severity of coronal structure destruction, if more than 50% is lost, the use of intraradicular retainers, such as metal core build-ups and prefabricated posts, should be required to provide retention of the restoration (3).…”

Section: Introductionmentioning

confidence: 99%

Fracture Strength of Weakened Anterior Teeth Associated to Different Reconstructive Techniques

et al. 2016

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This study evaluated the fracture strength of endodontically treated teeth submitted to reconstructive techniques through dynamic and static tests. Forty human anterior teeth were divided into 4 groups (n=10): GNW (non-weakened) -root restored with glass fiber post (GFP), GW -weakened root restored with GFP, GDA -weakened root restored with direct anatomic GFP, and GIA -weakened root restored with indirect anatomic GFP. The teeth were endodontically treated considering that experimental groups (GW, GDA and GIA) simulated weakened roots for restoration with GFP using different techniques. The GFP was luted with resin cement and the coronal portion was restored with composite resin and metallic crowns. All samples were submitted to chewing simulation at 60 cycles/ min in a total of 300,000 cycles. The survival samples were further exposed to compressive loading at a crosshead speed of 1.0 mm/min in a universal testing machine. The load was applied at 135° to the long axis of the tooth until failure. Data were analyzed by ANOVA (α=0.05). After chewing simulation were observed: GNW: 100% of survival roots; GW: 70% of survival roots, and GDA and GIA: 80% of survival roots. The mean fracture strength values (N) were 280.6 (GNW), 239.0 (GW), 221.3 (GDA), and 234.1 (GIA) without significant difference among the groups (p=0.7476). The results suggested similar fracture strength in both weakened and non-weakened teeth regardless the reconstructive technique of root internal wall. Higher incidence of catastrophic fracture was observed in weakened teeth without restoration of the root internal wall.

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“…A meta-analysis study evaluated the effects of the remaining coronal tissue and post type on the fracture strength of incisors has concluded that the fracture strength did not differ among the post types evaluated. In the presence of remaining coronal structure, the fracture strength was higher in specimens with cast cores and posts [12].…”

Section: And 4)mentioning

confidence: 91%

Esthetic Restoration of Two Severely Decayed Maxillary Central Incisors: A Case Report

Saafi¹,

Debbabi²,

Chakroun³

et al. 2017

Journal of Oral Health and Dental Science

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Today, patients are increasingly interested in metal-free restoration. Restoration of an anterior root-filled tooth with little remaining coronal tooth tissue can use a post to retain a core enabling definitive restoration. Post material has been, until recently, primarily metal--be it cast or prefabricated. Currently, fiber-posts are promoted as being advantageous due to a favorable failure mechanism which may protect the root from fracture [1]. Endodontic posts are necessary to provide adequate retention and support when no sufficient remaining structure is available to retain the core. There are different materials and techniques to construct post-andcore, but there is no consensus about which one promotes better stress distribution on the remaining tooth structure [2]. The new ceramics used for final crowns by CAD/CAM technique associate aesthetic and good mechanical qualities, biocompatibility, and accurate marginal fit and low invasive preparation. Abstract Esthetic Restoration of Two Severely Decayed Maxillary

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Do Metal Post–retained Restorations Result in More Root Fractures than Fiber Post–retained Restorations? A Systematic Review and Meta-analysis

Cited by 160 publications

References 21 publications

Evaluation of Stress Distribution in Endodontically Weakened Teeth Restored with Different Crown Materials: 3D-FEA Analysis

Evaluation of Stress Distribution in Endodontically Weakened Teeth Restored with Different Crown Materials: 3D-FEA Analysis

Fracture Strength of Weakened Anterior Teeth Associated to Different Reconstructive Techniques

Esthetic Restoration of Two Severely Decayed Maxillary Central Incisors: A Case Report

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