Bis‐GMA Free Dental Materials Based on UDMA/SR833s Dental Resin System

Ding, Yufei; Li, Baojun; Wang, Minghui; Liu, Fang; He, Jingwei

doi:10.1002/adv.21564

Cited by 14 publications

(9 citation statements)

References 40 publications

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“…That was why EC-4 with 15 wt.% of IBOA had higher DC than EC-1 without IBOA and EC-2 with 5 wt.% of IBOA. This result was consistent with previous research that, when used as a replacement for TEGDMA, SR833s could reduce DC of dental resin while IBOA could maintain it [ 12 , 13 , 19 ]. However, the first-tested hypothesis that low-shrinkage composite resins would promote a similar degree of conversion and lower shrinkage behavior compared to the conventional composite resin formulation was partially rejected.…”

Section: Discussionsupporting

confidence: 93%

“…However, compared with bis -GMA (shrinkage as 5.2%), TEGDMA (shrinkage as 12.5%) has much higher volumetric shrinkage, thus using diluents with lower volumetric shrinkage is an effective way to reduce overall shrinkage of resin matrices [ 11 ]. Tricyclo (5.2.1.0) decanedimethanol dacrylate (SR833s) and isobornyl acrylate (IBOA) are two kinds of low-viscous acrylate monomers reported as substitutes for TEGDMA in resin matrices with the aim of reducing volumetric shrinkage, but their influences on polymerization shrinkage behavior of dental composite resins has not yet been investigated [ 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

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Effect of low-shrinkage monomers on the physicochemical properties of experimental composite resin

Garoushi

Vallittu

et al. 2018

Acta Biomaterialia Odontologica Scandinavica

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This study was conducted to determine whether novel experimental low-shrinkage dimethacrylate co-monomers could provide low polymerization shrinkage composites without sacrifice to degree of conversion, and mechanical properties of the composites. Experimental composites were prepared by mixing 28.6 wt% of bisphenol-A-glycidyl dimethacrylate based resin matrix (bis-GMA) with various weight-fractions of co-monomers; tricyclo decanedimethanol dacrylate (SR833s) and isobornyl acrylate (IBOA) to 71.4 wt% of particulate-fillers. A composite based on bis-GMA/TEGDMA (triethylene glycol dimethacrylate) was used as a control. Fracture toughness and flexural strength were determined for each experimental material following international standards. Degree of monomer-conversion (DC%) was determined by FTIR spectrometry. The volumetric shrinkage in percent was calculated as a buoyancy change in distilled water by means of the Archimedes’ principle. Polymerization shrinkage-strain and -stress of the specimens were measured using the strain-gage technique and tensilometer, respectively with respect to time. Statistical analysis revealed that control group had the highest double-bond conversion (p < .05) among the experimental resins tested. All of the experimental composite resins had comparable flexural strength, modulus, and fracture toughness (p > .05). Volumetric shrinkage and shrinkage stress decreased with increasing IBOA concentration. Replacing TEGDMA with SR833s and IBOA can decrease the volumetric shrinkage, shrinkage strain, and shrinkage stress of composite resins without affecting the mechanical properties. However, the degree of conversion was also decreased.

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Section: Discussionsupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of low-shrinkage monomers on the physicochemical properties of experimental composite resin

Garoushi

Vallittu

et al. 2018

Acta Biomaterialia Odontologica Scandinavica

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“…It is important to underline that the final properties result not only from the characteristics of individual monomers, but above all, from the interactions that arise in the monomer mixture and the characteristics of the resulting polymer network [ 24 ]. Recent research has examined new monomers based on methacrylate, urethanes, or new resin systems [ 19 , 20 , 25 , 26 , 27 , 28 , 29 ]. However, only a few commercial materials, such as Venus Diamond (Heraeus Kulzer), Kalore (GC Corp), and SDR (Dentsply Sirona), are based on such modified monomers [ 30 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

An Evaluation of the Properties of Urethane Dimethacrylate-Based Dental Resins

et al. 2021

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Most of the dental materials available on the market are still based on traditional monomers such as bisphenol A-glycidyl methacrylate (Bis-GMA), urethane dimethacrylate (UDMA), triethyleneglycol dimethacrylate (TEGDMA), and ethoxylated bisphenol-A dimethacrylate (Bis-EMA). The interactions that arise in the monomer mixture and the characteristics of the resulting polymer network are the most important factors, which define the final properties of dental materials. The use of three different monomers in proper proportions may create a strong polymer matrix. In this paper, fourteen resin materials, based on urethane dimethacrylate with different co-monomers such as Bis-GMA or Bis-EMA, were evaluated. TEGDMA was used as the diluting monomer. The flexural strength (FS), diametral tensile strength (DTS), and hardness (HV) were determined. The impacts of material composition on the water absorption and dissolution were evaluated as well. The highest FS was 89.5 MPa, while the lowest was 69.7 MPa. The median DTS for the tested materials was found to range from 20 to 30 MPa. The hardness of the tested materials ranged from 14 to 16 HV. UDMA/TEGDMA matrices were characterized by the highest adsorption values. The overall results indicated that changes in the materials’ properties are not strictly proportional to the material’s compositional changes. The matrices showed good properties when the composite contained an equal mixture of Bis-GMA/Bis-EMA and UDMA or the content of the UDMA monomer was higher.

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“…VS was measured by using a modification of the method previously published 35) . The specimens' densities (n=6) were measured to determine VS according to Archimedes' principle with a commercial Density Accessory Kit of the analytical balance (XS105, Mettler Toledo, Greifensee, Switzerland).…”

Section: Volume Shrinkage (Vs)mentioning

confidence: 99%

Physicochemical properties of discontinuous S2-glass fiber reinforced resin composite

Huang

Qin

Garoushi

et al. 2018

Dental Materials Journal

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The objective of this study was to investigate several physicochemical properties of an experimental discontinuous S2-glass fiberreinforced resin composite. The experimental composite was prepared by mixing 10 wt% of discontinuous S2-glass fibers with 27.5 wt% of resin matrix and 62.5 wt% of particulate fillers. Flexural strength (FS) and modulus (FM), fracture toughness (FT), work of fracture (WOF), double bond conversion (DC), Vickers hardness, volume shrinkage (VS) and fiber length distribution were determined. These were compared with two commercial resin composites. The experimental composite showed the highest FS, WOF and FT compared with two control composites. The DC of the experimental composite was comparable with controls. No significant difference was observed in VS between the three tested composites. The use of discontinuous glass fiber fillers with polymer matrix and particulate fillers yielded improved physical properties and substantial improvement was associated with the use of S2-glass fiber.

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Bis‐GMA Free Dental Materials Based on UDMA/SR833s Dental Resin System

Cited by 14 publications

References 40 publications

Effect of low-shrinkage monomers on the physicochemical properties of experimental composite resin

Effect of low-shrinkage monomers on the physicochemical properties of experimental composite resin

An Evaluation of the Properties of Urethane Dimethacrylate-Based Dental Resins

Physicochemical properties of discontinuous S2-glass fiber reinforced resin composite

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