Influence of Prefabricated Post Material on Restored Teeth: Fracture Strength and Stress Distribution

2006 ◽  
Vol 31 (1) ◽  
pp. 47-54 ◽  
Author(s):  
A. Barjau-Escribano ◽  
J. L. Sancho-Bru ◽  
L. Forner-Navarro ◽  
P. J. Rodríguez-Cervantes ◽  
A. Pérez-González ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Stress Distribution ◽  
Glass Fiber ◽  
Success Rate ◽  
Failure Mode ◽  
Fracture Strength ◽  
Clinical Relevance ◽  
Fiber Posts ◽  
Glass Fiber Posts

Clinical Relevance When restoring teeth, a higher restoring success rate can be achieved by using posts with an elastic modulus similar to that of dentin and a core, with equal or higher strength, such as glass fiber posts. Moreover, the failure mode for these post systems will allow for further repair.

scholarly journals Fracture Strength and Stress Distribution in Premolars Restored with Cast Post-and-Cores or Glass-Fiber Posts Considering the Influence of Ferule

2019 ◽  
Vol 2019 ◽  
pp. 1-7 ◽  
Author(s):  
Atais Bacchi ◽  
Ricardo Armini Caldas ◽  
Daniel Schmidt ◽  
Mauricio Detoni ◽  
Matheus Albino Souza ◽  
...  
Keyword(s):  
Stress Distribution ◽  
Glass Fiber ◽  
Fracture Strength ◽  
Lower Percentage ◽  
Element Analysis ◽  
Mean Values ◽  
Failure Patterns ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Post And Core

Objectives. The aim of this study was to evaluate the influence of ferule and the post type on the fracture strength and stress distribution in premolars. Materials and Methods. Forty human mandibular premolars were decoronated, allocated in four groups, and restored as follows: CPC-NF: cast post-and-core and absence of ferule; CPC-F: cast post-and-core and presence of ferule; FPC-NF: glass-fiber posts and absence of ferule; FPC-F: glass-fiber posts and presence of ferule. The fracture strength (FS) and failure patterns were evaluated. Finite element analysis (FEA) evaluated the stress distribution. Results. FS did not differ between CPCs and FPC either in presence or in absence of ferule. The presence of ferule increased FS with both post types. Mean values of FS for ferule groups were higher than functional or parafunctional loads reported in literature, which was not the case for FPC-NF when compared to parafunctional loads. FEA with a functional load showed slightly higher compressive stresses in dentin in the group CPC-NF, which was much lower than the compressive strength of dentin. Lower percentage of catastrophic failures was observed in nonferule groups irrespective of post type, which was explained by the stress concentration in the cervical root region when FEA with the FS load was simulated. Conclusion. Ferule effect was shown to be more important than post type in the analysis. Both posts showed potential to withstand functional loads irrespective of presence of ferule. However, the mean FS was lower than parafunctional loads for FPC in the absence of ferule.

scholarly journals Influence of glass fiber posts and class III direct restorations on the resistance of anterior teeth

2020 ◽  
Vol 36 (5) ◽  
Author(s):  
Bruna Carbonari Massafra ◽  
Dandara Anderle ◽  
Doglas Cecchin ◽  
Bruno Carlini Júnior ◽  
Matheus Albino Souza ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Failure Mode ◽  
Fracture Strength ◽  
Testing Machine ◽  
Class Iii ◽  
Endodontically Treated Teeth ◽  
Anterior Teeth ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Glass Fiber Post

This study objectives to evaluate the fracture strength of upper central incisors (UCI) restored with composite resin (CR) in Class III cavities and endodontically treated teeth with or without glass fiber post (GFP), analyzing their failure mode. Sixty human UCI were randomly divided into four experimental groups: endodontically treated teeth without GFP (G1), endodontically treated teeth with GFP (G2), teeth with mesial/distal Class III cavities restored with CR without GFP (G3), and teeth with mesial/distal Class III cavities restored with CR with GFP (G4). The samples were submitted to the fracture strength test in a universal testing machine with a compression shear load applied at speed of 1.0 mm/min until fracture occurred. The data were submitted to one-way ANOVA (α=0.05) and the samples were analyzed for failure mode. The analysis did not show a significant statistical difference in fracture strength between the groups (p>0.05). The results showed that only endodontically treated teeth (G1) (753.4N) presented behavior similar to teeth with GFP (G2) (702.1N). The same occurred when comparing teeth with Class III cavities without GFP (G3) (670.2 N) and with GFP (G4) (746.1N). It can be concluded that glass fiber posts do not change the fracture strength of incisors with endodontic treatment and Class III cavities.

Analysis of Dentinal Stress Distribution of Maxillary Central Incisors Subjected to Various Post-and-core Applications

2006 ◽  
Vol 31 (1) ◽  
pp. 89-96 ◽  
Author(s):  
S. Toksavul ◽  
M. Zor ◽  
M. Toman ◽  
M. A. Güngör ◽  
I. Nergiz ◽  
...  
Keyword(s):  
Stress Concentration ◽  
Stress Distribution ◽  
Glass Fiber ◽  
Clinical Relevance ◽  
Zirconia Ceramic ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Post And Core ◽  
Fea Analysis ◽  
Cervical Area

Clinical Relevance According to FEA analysis, under a simulated occlusal load, the cervical area of endodontically treated and crowned maxillary central incisors was the most stress concentrated area. Zirconia ceramic posts create slightly less dentinal stress concentration than titanium and glass-fiber posts.

The effect of glass fiber posts and ribbons on the fracture strength of teeth with flared root canals restored using composite resin post and cores

2018 ◽  
Vol 62 (1) ◽  
pp. 97-103 ◽  
Author(s):  
Mariko Kubo ◽  
Wataru Komada ◽  
Shiho Otake ◽  
Tasuku Inagaki ◽  
Satoshi Omori ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Fracture Strength ◽  
Composite Resin ◽  
Root Canals ◽  
Fiber Posts ◽  
Glass Fiber Posts

scholarly journals Fracture Resistance of Simulated Immature Teeth after Different Intra-radicular Treatments

2015 ◽  
Vol 26 (3) ◽  
pp. 211-215 ◽  
Author(s):  
Gustavo Sivieri-Araujo ◽  
Mario Tanomaru-Filho ◽  
Juliane Maria Guerreiro-Tanomaru ◽  
Eduardo Antunes Bortoluzzi ◽  
Érica Gouveia Jorge ◽  
...  
Keyword(s):  
Glass Fiber ◽  
Fracture Strength ◽  
Root Canal ◽  
Fracture Resistance ◽  
Testing Machine ◽  
Fiber Post ◽  
Immature Teeth ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Glass Fiber Post

The aim of this study was to evaluate the fracture resistance of simulated immature teeth after different intra-radicular treatments. Crowns and roots of bovine incisors were cut transversally and removed to simulate immature teeth. Root canal preparation and flaring were performed using a bur in crown-apex and apex-crown direction. The samples were distributed into 5 groups (n=10): Positive control (PoC) - no root canal flaring or filling; Negative control (NeC) - teeth were sectioned and their root canals were flared; Direct anatomical glass fiber post (RaP) - #2 Reforpost main glass fiber post relined with composite resin; Double tapered conical glass fiber posts (ExP) - #3 Exacto glass fiber post; and #2 Reforpost main glass fiber + Reforpin accessory glass fiber posts (RrP). In RaP, ExP and RrP, 4.0-mm apical plugs were done with MTA Angelus. The specimens were embedded in polystyrene resin inside cylinders and the periodontal ligament was simulated with a polyether-based impression material. The specimens were submitted to compressive fracture strength test (0.5 mm/min at 135° relative to the long axis of the tooth) in a servo-hydraulic mechanical testing machine MTS 810. Data were subjected to one-way ANOVA and Dunnett's C or Tukey's tests (α=0.05). The control groups (PoC and NeC) showed lower fracture strength than the experimental groups. NeC presented the lowest resistance and ExP presented the highest resistance among the experimental groups. The flaring procedures produced a detrimental effect on the fracture resistance of the bovine teeth. Glass fiber intra-radicular posts increased significantly the fracture resistance of simulated immature teeth.

The influence of customization of glass fiber posts on fracture strength and failure pattern: A systematic review and meta-analysis of preclinical ex-vivo studies

2021 ◽  
Vol 118 ◽  
pp. 104433
Author(s):  
Camila Ferreira Silva ◽  
Luana Cardoso Cabral ◽  
Murilo Navarro de Oliveira ◽  
Victor da Mota Martins ◽  
Alexandre Coelho Machado ◽  
...  
Keyword(s):  
Systematic Review ◽  
Glass Fiber ◽  
Fracture Strength ◽  
Ex Vivo ◽  
Meta Analysis ◽  
Failure Pattern ◽  
Fiber Posts ◽  
Glass Fiber Posts

Influence of photodynamic therapy and intracanal medication on Martens hardness, elastic modulus and bond strength of glass-fiber posts to endodontically treated root dentin

2021 ◽  
pp. 102571
Author(s):  
Henrico Badaoui Strazzi-Sahyon ◽  
Arianny Késsia Lara Oliveira ◽  
Amanda Pereira Carvalho ◽  
Roberto Braga Figueiredo ◽  
Luciano Tavares Angelo Cintra ◽  
...  
Keyword(s):  
Photodynamic Therapy ◽  
Elastic Modulus ◽  
Bond Strength ◽  
Glass Fiber ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Root Dentin ◽  
Martens Hardness

scholarly journals Push-out bond strength and failure mode of single adjustable and customized glass fiber posts

2021 ◽  
Author(s):  
Lívia Duarte Santos Lopes ◽  
Marlus da Silva Pedrosa ◽  
Lara Beatriz Melo Oliveira ◽  
Sandy Maria da Silva Costa ◽  
Livia Aguiar Santos Nogueira Lima ◽  
...  
Keyword(s):  
Bond Strength ◽  
Glass Fiber ◽  
Failure Mode ◽  
Fiber Posts ◽  
Glass Fiber Posts ◽  
Push Out

The mussel-inspired polydopamine surface treatment influences bond strength of glass fiber posts to radicular dentin

2021 ◽  
Vol 105 ◽  
pp. 102791
Author(s):  
Ata Nisa Çoban Kanyılmaz ◽  
Sema Belli ◽  
Prasanna Neelakantan
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Glass Fiber ◽  
Fiber Posts ◽  
Glass Fiber Posts
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