The effect of ferrule height on stress distribution within a tooth restored with fibre posts and ceramic crown: A finite element analysis

Juloski, Jelena; Apicella, Davide; Ferrari, Marco

doi:10.1016/j.dental.2014.09.004

Cited by 57 publications

(42 citation statements)

References 41 publications

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“…Although some studies have concluded that prepare on root dentine becomes the root thinner and more prone to fatigue and fracture (25), the present study showed similar stress along the root, glass fiber post and resin cement in all groups for both weakened and non-weakened roots; which is in accordance with Gomes et al (12). Probably, the similar elasticity modulus of the structures was assumed as a monoblock system and provided uniform stress distribution (12), regardless the amount of remaining root dentine.…”

Section: Discussionmentioning

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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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: Discussionmentioning

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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“…In particular, preservation of at least a circumferential 2-mm ferrule may contribute to improve tooth mechanical resistance and is considered one of the key factors affecting tooth longevity (Jotkowitz and Samet 2010;Juloski et al 2014a;Juloski et al 2012;Stankiewicz and Wilson 2002). Several clinical studies have been conducted specifically aiming at revealing the influence of the degree of hard tissue loss on the survival of endodontically treated and fiber post-restored teeth (Ferrari et al 2012a;Juloski et al 2014b;Mancebo et al 2010;Signore et al 2011).…”

Section: Introductionmentioning

confidence: 99%

Post-Retained Single Crowns versus Fixed Dental Prostheses: A 7-Year Prospective Clinical Study

et al. 2017

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The objective of this prospective clinical trial was to assess the influence of the type of prosthetic restoration as well as the degree of hard-tissue loss on 7-year clinical performance of endodontically treated teeth restored with fiber posts. Two groups (n=60) were defined depending on the type of prosthetic restoration needed: (1) single unit porcelain-fused to metal (PFM) crowns (SCs) and (2) 3-4 unit PFM fixed dental prostheses (FDPs). Within each group, samples were randomly divided into 2 subgroups (n=30) according to the amount of residual coronal tissues after abutment build-up and final preparation: (A) more than 50% of coronal residual structure, (B) equal to or less than 50% of coronal residual structure. The clinical outcome was assessed based on clinical and intra-oral radiographic examinations at the recalls after 6, 12, 24, 36, 48 and 84 months. Data were analyzed by Kaplan-Meier Log Rank test and Cox regression analysis (p<0.05). The overall 7-year survival rate of endodontically treated premolars restored with fiber post and either PFM SCs or FDPs was 69.2%. The highest 84-months survival rate was recorded in Group 1A (90%), whereas teeth in Group 2B exhibited the lowest performance (56.7% survival rate). The Log Rank test detected statistically significant differences in survival rates among the groups (p=0.048). Cox regression analysis revealed that the amount of residual coronal structure (p=0.041) and the interaction between the type of prosthetic restoration and the amount of residual coronal structure (p=0.024) were statistically

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“…4C. The failure mode of these specimens appears more complex because of the contribution of the "ferrule effect" (Juloski et al, 2014;Dejak and Młotkowski, 2013), which plays a role in supporting the compressive force and transferring the stress to the bulks of residual root. Initial failure in the glass ionomer bonding interface was detected in the video captures.…”

Section: Evaluation Of the Fracture Failure Testsmentioning

confidence: 97%

Modeling of damage driven fracture failure of fiber post-restored teeth

2015

Journal of the Mechanical Behavior of Biomedical Materials

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The effect of ferrule height on stress distribution within a tooth restored with fibre posts and ceramic crown: A finite element analysis

Cited by 57 publications

References 41 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

Post-Retained Single Crowns versus Fixed Dental Prostheses: A 7-Year Prospective Clinical Study

Modeling of damage driven fracture failure of fiber post-restored teeth

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