Hardness and diametral tensile strength of a hybrid composite resin polymerized with different modes and immersed in ethanol or distilled water media

Aguiar, Flávio Henrique Baggio; Braceiro, Aline; Ambrosano, G.M.B.; Lovadino, José Roberto

doi:10.1016/j.dental.2004.11.010

Cited by 66 publications

(76 citation statements)

References 15 publications

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“…These results is supported by other studies that found no correlation between the surface hardness and DTS values for different ranges of resin-based materials [47,69,70]. On the contrary, Medeiros et al found a strong correlation between the surface hardness and the DTS values [26].…”

Section: Discussionsupporting

confidence: 76%

“…The effect of the solvents on the DTS values in this study was similar to that on the surface micro-hardness. The impact of each solvent was determined by its solubility parameter, more material degradation occurred with MEK storage followed by 75% Ethanol/water and lastly by water storage [47]. That was supported by the significant interaction found between the material type and solvent (p< 0.0005).…”

Section: Discussionmentioning

confidence: 77%

“…Organic solvents, as Ethanol and MEK, showed more detrimental effect on the mechanical properties compared to water storage. Several studies have demonstrated more complete extraction of monomers and oligomers with the organic solvents that could explain their stronger impact on the mechanical properties [8,12,45,[47][48][49][50].…”

Section: Discussionmentioning

confidence: 99%

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Surface and bulk properties of dental resin- composites after solvent storage

2016

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Section: Discussionsupporting

confidence: 76%

Section: Discussionmentioning

confidence: 77%

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Surface and bulk properties of dental resin- composites after solvent storage

2016

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“…Improvements in composite resin mechanical properties and light curing devices have permitted their use in posterior teeth with greater reliability than was the case some years ago 1,3,7,9 . Shrinkage stress, however, is one of the inherent disadvantages that occur when visible lightactivated resin composites are submitted to light polymerization.…”

Section: Introductionmentioning

confidence: 99%

“…An important milestone in the history of modern restorative dentistry was the development of light-cured composite resins for direct procedures 1,7,9,14 . Improvements in composite resin mechanical properties and light curing devices have permitted their use in posterior teeth with greater reliability than was the case some years ago 1,3,7,9 .…”

Section: Introductionmentioning

confidence: 99%

Diametral tensile strength of composite resins submitted to different activation techniques

et al. 2006

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ABSTRACT:The aim of this study was to evaluate the diametral tensile strength (DTS) of composite resins submitted to different curing techniques. Four composite resins were tested in this study: Targis (Ivoclar), Solidex (Shofu), Charisma (Heraeus-Kulzer) and Filtek Z250 (3M Espe). Sixty-four cylindrical specimens were prepared and divided into eight groups according to each polymerization technique (n = 8). The indirect composite resins (Targis and Solidex) were polymerized with their respective curing systems (Targis Power and EDG-lux); Charisma and Filtek Z250 were light-cured with conventional polymerization (halogen light) and additionally, with post-curing systems. Specimens were stored in artifi cial saliva at 37°C for one week. DTS tests were performed in a Universal Testing Machine (0.5 mm/min). The data were statistically analyzed by ANOVA and Duncan tests.

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Radiopacity evaluation of Bis‐GMA/TEGDMA/opaque mineral filler dental composites

Amirouche

Mouzali²,

Watts

2007

J of Applied Polymer Sci

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The purpose of this work was to determine radiopacity values of composites based on (Bis-GMA/ TEGDMA) monomers, at varying monomer compositions: (25/75), (50/50), and (75/25), mixed with five different radiopacifying filler agents: BaO, BaSO 4 , La 2 O 3 , ZrO 2 , and SrO at varying loadings ranging from 0 to 80 wt %. The radiopacity of four commercial dental composites were also evaluated and used as a comparative data. Following standard radiographic technique, X-ray radiography of 2.5 mm thickness dental composite specimens along with pure aluminum step-wedge, a reference, were performed. The optical density of specimens was measured using a transmission densitometer and the radiopacity values of samples were expressed in term of equivalent thickness of aluminum per mm thickness of material. The lanthanum oxide filler containing composites, which is a new radiopacifying agent, exhibited the greatest radiopacity levels than all other composites, for all monomer and filler loadings studied. The radiopacity values of these composites were greater than that of human dental enamel. Strontium oxide containing composites were less radiopaque than other materials especially in the case of composites based on (Bis-GMA/TEGDMA): (25/75). The composites containing more than 10 wt % of BaO, BaSO 4 , and ZrO 2 for monomer compositions of (75/25) and (50/50) had radiopacity values greater than that of enamel.

show abstract

Hardness and diametral tensile strength of a hybrid composite resin polymerized with different modes and immersed in ethanol or distilled water media

Cited by 66 publications

References 15 publications

Surface and bulk properties of dental resin- composites after solvent storage

Surface and bulk properties of dental resin- composites after solvent storage

Diametral tensile strength of composite resins submitted to different activation techniques

Radiopacity evaluation of Bis‐GMA/TEGDMA/opaque mineral filler dental composites

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