Flexural strength of provisional crown and fixed partial denture resins

Haselton, Debra R.; Diaz‐Arnold, Ana M.; Vargas, Marcos A.

doi:10.1067/mpr.2002.121406

Cited by 141 publications

(154 citation statements)

References 12 publications

Supporting

Mentioning

129

Contrasting

Unclassified

Order By: Relevance

“…Ireland et al [9], reported that the provisional restorations made directly in the oral cavity are polymerized under minimal pressure, and therefore, generate worse mechanical results due to the incorporation of air bubbles than those fabricated indirectly under higher pressures. Other techniques, such as polymerization under room temperature conditions (23 ºC) [8], immersion of the resin in water or artificial saliva at different temperatures [6,8,10], the use of greater or less pressure [6,9] and the association of these variables [1,6], have been proposed, and could notably influence the mechanical properties of the studied resin, which prevents an adequate systematization for comparison of the results.…”

Section: Discussionmentioning

confidence: 99%

“…In spite of the limitations of laboratory techniques with regard to the reproduction of clinical situations, they are useful and necessary for comparing materials and techniques in controlled situations [10].…”

Section: Discussionmentioning

confidence: 99%

“…Nevertheless, in spite of all these advantages, acrylic resins sometimes have insufficient mechanical properties to withstand the occlusal forces [2,[6][7][8]. Fractures of these resins mainly occur due to flexural fatigue or failures resulting from impact [7,9,10].…”

Section: Introductionmentioning

confidence: 99%

“…Some increments have also been studied to reinforce poly-methylmethacrylate, such as metals; nylon; cross-linking agents; rubber polymers; corpuscles of ceramic, silica and sapphire; aluminum oxide, glass, polyethylene, aramid and carbon fibers [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Analysis of flexural strength of a self cured acrylic resin used for fabricating provisional restorations with three different types of reinforcements

Olivieri

Costa

Miranda

et al. 2013

BDS

View full text Add to dashboard Cite

Objective: To evaluate the effect of three different types of reinforcements on the flexural strength of a chemically activated acrylic resin.Materials and Methods: A Universal test machine EMIC 2000 was used at a speed of 5mm/min., to evaluate the flexural strength of 40 test specimens (65mm X 10mm X 3mm) fabricated of chemically activated acrylic resin, distributed into the following four groups: (1) control – without reinforcement; (2) reinforced with 0.7mm stainless steel orthodontic wire; (3) reinforced with Fibrex-lab® glass fiber and; (4) reinforced with Perma-Fiber®glass fiber.Results: The following flexural strength values were obtained: Group 1 – 80.60 MPa; Group 2 – 95.96 MPa; Group 3 – 105.70 MPa; and Group 4 – 108.70 MPa. The analysis of variance (p < 0.05) showed significant difference among the groups and the Tukey test showed that the control group presented the worst behavior, followed by reinforcement with metal wire, which showed statistically similar results to those of Group 3, with no difference shown between the fiber groups.Conclusion: Reinforcement with glass fibers present better flexural strength in comparison with the other methods.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Analysis of flexural strength of a self cured acrylic resin used for fabricating provisional restorations with three different types of reinforcements

Olivieri

Costa

Miranda

et al. 2013

BDS

View full text Add to dashboard Cite

show abstract

“…Thus fracture resistance of interim FPD material is an important factor and should be considered prior to selecting a provisional material for the clinical success. 7 Several attempts have been made to improve physical properties of resin based materials with various fibre reinforcements. Such reinforcements reduce flexure, increase retention and fracture toughness, and increase structural integrity.…”

Section: Discussionmentioning

confidence: 99%

An evaluation of fracture resistance of interim fixed partial denture fabricated using polymethylmethacrylate and reinforced by different fibres for its optimal placement: an in vitro study

Viswambaran

Kapri

D'Souza³

et al. 2011

Medical Journal Armed Forces India

View full text Add to dashboard Cite

INTRODUCTIONRehabilitation of partially edentulous patients using fixed partial denture (FPD) is a well-established treatment protocol since many decades. These FPDs require a laboratory phase of fabrication that varies from days to weeks. A dimensionally stable, strong, and accurate interim restoration is an important component of this treatment modality. These interim restorations provide pulpal protection, positional stability, occlusal function, strength, and aesthetics.Polymethylmethacrylate (PMMA) is the most common material used to fabricate interim FPDs. This material lacks sufficient strength and hence various methods are being used for reinforcing it in the past like glass fibres, carbon fibres, kevlar fibres, polyethylene fibres, and stainless steel wire.1-4 To date, little information is available in the literature on fracture resistance of reinforced PMMA temporary crown and bridge materials. It is also not clear as to how the site of placement of fibre reinforcement, influences the fracture resistance of temporary crown and bridge materials. Therefore, this study was undertaken to evaluate the fracture resistance of interim FPDs using different types of fibre reinforcements and also to determine the most appropriate site of reinforcement of interim FPDs fabricated from PMMA. MATERIALS AND METHODThis study was designed in two stages. In the first stage various methods of reinforcement for interim FPDs made up of PMMA were evaluated. During the second stage, favourable sites of placement to strengthen the interim FPDs were evaluated. There were five groups of ten samples each namely the group 1 (unreinforced, control group), group 2 (glass fibrereinforced), group 3 (polyethylene fibre-reinforced), group 4 (glass and polyethylene mixed fibre) and group 5 (stainless steel reinforced).Samples were tested for fracture resistance in an Instron universal testing machine. The maximum load causing the initial fracture and fracture resistance were calculated. The mean and standard deviation for each group were determined. The data was analysed for differences using one way analysis of variance (ANOVA) (The Tukey's standardised range test) to An evaluation of fracture resistance of interim fixed partial denture fabricated using polymethylmethacrylate and reinforced by different fibres for its optimal placement: an in vitro study Col

show abstract

Therapeutic Temporary Restorations

Ahmad¹

2006

Protocols for Predictable Aesthetic Dental Restorations

View full text Add to dashboard Cite

Flexural strength of provisional crown and fixed partial denture resins

Cited by 141 publications

References 12 publications

Analysis of flexural strength of a self cured acrylic resin used for fabricating provisional restorations with three different types of reinforcements

Analysis of flexural strength of a self cured acrylic resin used for fabricating provisional restorations with three different types of reinforcements

An evaluation of fracture resistance of interim fixed partial denture fabricated using polymethylmethacrylate and reinforced by different fibres for its optimal placement: an in vitro study

Therapeutic Temporary Restorations

Contact Info

Product

Resources

About