Fracture Resistance of CAD/CAM-Fabricated Fiber-Reinforced Composite Denture Retainers

2013 ◽  
Vol 26 (4) ◽  
pp. 381-383 ◽  
Author(s):  
Kohji Nagata ◽  
Noriyuki Wakabayashi ◽  
Hidekazu Takahashi ◽  
Pekka K Vallittu ◽  
Lippo VJ Lassila
Keyword(s):  
Fracture Resistance ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Reinforced Composite ◽  
Cad Cam

scholarly journals Influence of Post-Core and Crown Type on the Fracture Resistance of Incisors Submitted to Quasistatic Loading

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1130
Author(s):  
Sadullah Uctasli ◽  
Yakup Boz ◽  
Sercan Sungur ◽  
Pekka K. Vallittu ◽  
Sufyan Garoushi ◽  
...  
Keyword(s):  
Fracture Resistance ◽  
Short Fiber ◽  
Fiber Reinforced ◽  
Loading Test ◽  
Fiber Reinforced Composite ◽  
Failure Type ◽  
Fiber Posts ◽  
Reinforced Composite ◽  
Luting Cement ◽  
Cad Cam

The aim of this paper was to evaluate the fracture resistance and failure type of maxillary incisor teeth, rebuilt with various types of post-core restorations and full crowns made of either direct conventional particulate filler composite (PFC, G-aenial Anterior, GC, Tokyo, Japan) or indirect CAD/CAM restorations (composite Cerasmart 270 and glass ceramic LiSi Block from GC). One hundred (n = 10/group) central incisors were cut and divided into 10 experimental groups restored with different approaches. In approach A, teeth were restored with a core build-up composite (Gradia Core, GC) for a core and full crown of PFC. Approach B had teeth restored using composite core and prefabricated fiber posts, and a complete crown of either PFC or CAD/CAM. Approach C contained teeth restored with a core of short fiber-reinforced composite (everX Flow, GC) and prefabricated fiber posts, and a complete crown of either PFC or CAD/CAM. In approach D, the teeth had a core of short fiber-reinforced composite only, and a complete crown of either PFC or CAD/CAM restorations. The root canals were prepared, and when posts were used, they were luted with either a dual-cure resin cement (LinkForce, GC) or everX Flow. As the control, sound teeth (n = 10) were used. Restorations were quasi-statically loaded until fracture. Failure type was visually investigated. The interface between the fiber post and luting cement was investigated using SEM, before and after completion of the loading test. The data were analyzed by analysis of variance (p = 0.05) followed by Tukey’s test. None of the restorative approaches restored the fracture load strength of intact teeth (p < 0.05). Restorations with additional fiber posts (Approaches B and C) had higher load-bearing capacity (p < 0.05) than restorations without fiber posts (Approaches A and D). Restorations that had short fiber-reinforced composite cores with or without fiber posts presented more repairable failures. Using short fiber-reinforced composite as post-luting and core build-up material with conventional fiber posts proved to be a promising method to strengthen severely damaged incisors.

Effect of aging and testing method on bond strength of CAD/CAM fiber-reinforced composite to dentin

2018 ◽  
Vol 34 (11) ◽  
pp. 1690-1701 ◽  
Author(s):  
Lucas Fracassi de Oliveira Lino ◽  
Camila Moreira Machado ◽  
Vitor Guarçoni de Paula ◽  
Hugo Alberto Vidotti ◽  
Paulo G. Coelho ◽  
...  
Keyword(s):  
Bond Strength ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Testing Method ◽  
Reinforced Composite ◽  
Cad Cam

scholarly journals Evaluating the fracture resistance of fiber reinforced composite restorations - An in vitro analysis

2020 ◽  
Vol 31 (1) ◽  
pp. 138 ◽  
Author(s):  
ArunKumar Patnana ◽  
NarasimhaRao V. Vanga ◽  
Rajasekhar Vabbalareddy ◽  
SrinivasKumar Chandrabhatla
Keyword(s):  
Fracture Resistance ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Composite Restorations ◽  
Reinforced Composite ◽  
Vitro Analysis ◽  
In Vitro Analysis

Influence of Different Techniques of Laboratory Construction on the Fracture Resistance of Fiber-Reinforced Composite (FRC) Bridges

2004 ◽  
Vol 5 (4) ◽  
pp. 1-13 ◽  
Author(s):  
Ayman E. Ellakwa ◽  
Adrian C. Shortall ◽  
Peter M. Marquis
Keyword(s):  
Fracture Resistance ◽  
Testing Machine ◽  
Resin Cement ◽  
Dental Composite ◽  
Fiber Reinforced ◽  
Fiber Reinforced Composite ◽  
Group Codes ◽  
Reinforced Composite ◽  
Polyethylene Fiber ◽  
In Series

Abstract The aim of the current investigation is to evaluate optimal pontic and retainer fiber positions for Polyethylene fiber-reinforced composite (FRC) restorations. In series I notch disc specimens were used to mimic loading cuspal regions of pontics. Four groups (n=15/group; codes A to D) were prepared from Artglass composite. Groups A to C were reinforced with polyethylene fibers, and group D was an unreinforced control. Fibers were positioned either around (A), beneath the notch (B), or at the disc base (C). Specimens were stored in distilled water at 37°C for 24 h before testing to failure (CHS=1mm/min) in a universal testing machine. Mean torque to failure values ranked [P< 0.05; one-way analysis of variance (ANOVA)] as follows A = B > C = D. In series II five groups of three unit bridges (n =5/group; codes A to E) were prepared from Artglass dental composite without (group A) or with (groups B to E) different Connect fiber reinforcement locations/ techniques. Bridges were cemented using 2 bond resin cement to a standardized substructure. After storage, as per series I, bridges were loaded mid-pontic region to failure. One-way ANOVA showed no significant (P=0.08) difference between test groups. The research hypothesis was that notched disc and 3 unit bridge test techniques would discriminate equally between fiber-reinforced specimens and an unreinforced composite control was rejected. Citation Ellakwa AE, Shortall AC, Marquis PM. Influence of Different Techniques of Laboratory Construction on the Fracture Resistance of Fiber-Reinforced Composite (FRC) Bridges. J Contemp Dent Pract 2004 November;(5)4:001-013.

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