Flexural fatigue of denture base polymer with fiber-reinforced composite reinforcement

Narva, Katja K.; Lassila, Lippo; Vallittu, Pekka K.

doi:10.1016/j.compositesa.2005.01.025

Cited by 41 publications

(23 citation statements)

References 26 publications

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“…The porous structure in the polymer pre-impregnated glass fibers enables the matrix to obtain both mechanical and chemical bonding. When pre-impregnated glass fibers are used, it is expected that there will be a greater reinforcement effect [32].…”

Section: Discussionmentioning

confidence: 99%

“…Glass fibers are predominantly made of silicon dioxide, with the addition of some other metal oxides. The bonding is effective to PMMA after silanization [30,31] and good embedding of PMMA to the polymer-preimpregnated glass fibers [23,32,33]. In the fabrication of orthodontic retainers using cold-cured PMMA, the so-called "sprinkle method" is often employed to construct the appliance.…”

Section: Introductionmentioning

confidence: 99%

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A New Approach to Cure and Reinforce Cold-Cured Acrylics

Tsoi

Matinlinna

2012

Silicon

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Purpose The low degree of polymerization of coldcured acrylics has resulted in inferior mechanical properties and fracture vulnerability in orthodontics removable appliances. Methods In this study, the effect of reinforcement by various concentrations of chopped E-glass fibers (0%, 1%, 2%, 3% and 5% by weight of resin powder) and post-curing microwave irradiation (800 W for 3 min) on the flexural strength of cold-cured acrylics was evaluated at various storage conditions (at room temperature for 1 day and 7 days; at water storage for 7, 14 and 30 days). Results The data was analyzed by using 1-way and 2-way ANOVA, and a Tukey post hoc test (α = .05). The specimens with chopped E-glass fibers treated with post-curing microwave irradiation significantly increased the flexural strength of cold-cured PMMA. The optimal concentration might be 2% fibers under irradiation. Conclusions The exhibited reinforcement effect lasted in a consistent trend for 14 days in water storage. A new fiber-acrylic mixing method was also developed.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A New Approach to Cure and Reinforce Cold-Cured Acrylics

Tsoi

Matinlinna

2012

Silicon

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“…In recent studies investigating the static strength [26] and flexural fatigue [29] of denture base polymer reinforced mainly with FRC, it was revealed that placing the FRC reinforcements on the tensile side resulted in considerably higher flexural strength and flexural modulus values compared with placing the same quantity of FRC reinforcements on the compression side [26]. Fiber reinforcement placed on the tensile side reinforced the test specimens more effectively against repeated bending than did fiber reinforcements on the compression side [29]. Polymerized FRC material is considered to be as useful as metal for reinforcing denture base resin, but the reinforcing effect of FRCs on the flexural strength of denture base resins has not yet been investigated.…”

Section: Introductionmentioning

confidence: 99%

Reinforcing effect of glass-fiber-reinforced composite on flexural strength at the proportional limit of denture base resin

Tsue

Takahashi

Shimizu

2007

Acta Odontologica Scandinavica

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“…2,3 레진 의치상 파절을 예방하기 위하여 금속이나 유리섬 유 등의 보강재를 이용하여 파절 강도를 높이고자 많은 연구 [5][6][7][8][9][10][11][12][13][14][15][16][17][18] 가 시행되었으며, 의치가 파절 되었을 경우 수리된 의치상의 파절 강도를 높이기 위한 여러 방법들이 연구되었다.…”

Section: 된다unclassified

Comparison of metal wire reinforcement and glass fiber reinforcement in repaired maxillary complete denture

Lee

Yun

et al. 2013

J Korean Acad Prosthodont

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//dx.doi.org/10.4047/jkap.2013.51.4.284 Purpose: This study compared fracture strength and fracture modes between metal wire reinforcement and glass fiber reinforcement in repaired maxillary complete denture. Materials and methods: In this study, fracture was reproduced on center of maxillary complete dentures and the denture was repaired with auto-polymerizing resin. The experimental groups (n = 10) were subjected to the following condition: without reinforcing material (control group), reinforcing with metal wire (W group), reinforcing with glass fiber pre-impregnated with light-curing resin (SES MESH, INNO Dental Co., Yeoncheon, Korea, G group). The fracture strength and fracture modes of a maxillary complete denture were tested using Instron test machine (Instron Co., Canton, MA, USA) at a 5.0 mm/min crosshead speed. The flexure load was applied to center of denture with a 20 mm diameter ball attachment. When fracture occurred, the fracture mode was classified based on fracture lines. The Kruskal-wallis test and the Mann-whitney U test were performed to identify statistical differences at α =.05. Results: W group showed the highest value of fracture strength, there was no significant difference (P>.05) between control group and G group. Control group and W group showed anteroposterior fracture mainly, group W showed adhesive fracture of denture base and reinforcing material. Conclusion: In limitation of this study, the glass fiber did not improve the fracture strength of repaired maxillary complete denture, and adhesive failure was occurred along the lines of glass fiber. (J Korean Acad Prosthodont 2013;51:284-91)

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Flexural fatigue of denture base polymer with fiber-reinforced composite reinforcement

Cited by 41 publications

References 26 publications

A New Approach to Cure and Reinforce Cold-Cured Acrylics

A New Approach to Cure and Reinforce Cold-Cured Acrylics

Reinforcing effect of glass-fiber-reinforced composite on flexural strength at the proportional limit of denture base resin

Comparison of metal wire reinforcement and glass fiber reinforcement in repaired maxillary complete denture

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