Hydrophobic composite resins using a novel allylic urethane monomer as additive

González-López, José Abraham; Pérez‐Mondragón, Alma Antonia; Cuevas‐Suárez, Carlos Enrique; Alonso, Juan Coreño; Trejo‐Carbajal, Nayely; Herrera‐González, Ana M.

doi:10.29356/jmcs.v63i4.877

Cited by 2 publications

(1 citation statement)

References 23 publications

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“…Alternative monomers based on urethane methacrylates are being investigated in an attempt to replace the Bis-GMA in resin composite formulations [6,16]. The urethane methacrylates have a chemical structure that can be easily tailored, making it possible to design and synthesize a wide variety of monomers with different physicochemical properties [11], such as PEG400, UDMA, and Exothane™.…”

Section: Introductionmentioning

confidence: 99%

Effect of an elastomeric urethane monomer on BisGMA-free resin composites containing different co-initiators

et al. 2021

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Objectives The aim of this study was to investigate the mechanical, chemical, optical, and adhesive properties of BisGMAfree experimental resin composites containing Exothane-24-an elastomeric urethane monomer-and different co-initiators. Materials and methods A blend of urethane dimethacrylate (UDMA), extended dimethacrylate urethane (PEG 400), triethylene glycol dimethacrylate (TEGDMA), and camphorquinone was prepared. Two different co-initiators-dimethyl aminoethyl methacrylate (DMAEMA) or 4-N alcohol, N-dimethylamine phenylethyl (DMPOH)-were added to the blend. Exothane-24 monomer was added to the blend for each co-initiator and four groups were established as follows: DMAEMA; DMAEMA + Exothane; DMPOH; and DMPOH + Exothane. Specimens were photo-activated using a multi-wave LED lightcuring unit (VALO; 954 mW/cm 2 of irradiance). Mechanical (ultimate tensile strength, flexural strength, flexural modulus and hardness), chemical (degree of conversion, hardness reduction, water sorption and solubility), optical (color change), and adhesive (microtensile bond strength) properties were analyzed. Data were submitted to two-way ANOVA and Tukey's test (α = 0.05). ResultsThe resin composite containing DMPOH and Exothane-24 showed similar or superior performance to those of the other experimental composites for mechanical and chemical properties, except for flexural strength. It also showed less color change and greater micro-tensile bond strength. Conclusions Among the combinations tested, the BisGMA-free resin composite containing Exothane-24 combined with the DMPOH co-initiator showed the best mechanical, chemical, optical, and adhesive properties. Clinical relevance Exothane-24 monomer and DMPOH co-initiator could be useful in the formulation of BisGMA-free resin composites in order to minimize exposure to BPA.

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Section: Introductionmentioning

confidence: 99%

Effect of an elastomeric urethane monomer on BisGMA-free resin composites containing different co-initiators

et al. 2021

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Effect of replacing UDMA by a new tetramethacrylate monomer on the properties of dental resin composite

Pérez‐Mondragón

Trejo‐Carbajal

Cuevas‐Suárez

et al. 2022

J of Applied Polymer Sci

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The aim of this study is to synthesize the tetramethacrylate monomer (TIMA) and evaluate its effect as a substituent for UDMA in the formulation of photopolymerizable dental resin composites (DRC). 1 H NMR, 13 C NMR and FTIR spectroscopies corroborate the chemical structure of the TIMA monomer. The experimental composite resin is a mixture of TIMA/TEGDMA monomers and silanized inorganic filler while, the control resin is a mixture of UDMA/ TEGDMA and filler. The double-bond conversion, polymerization kinetics, volumetric shrinkage, aqueous sorption, solubility, mechanical properties, and cell viability are studied. The flexural strength of the composite resin formulated with TIMA monomer does not show statistical differences compared to the control (p > 0.05). However, formulations with the TIMA monomer presented higher elastic modulus (2425.37 MPa) and lower degree of conversion 38.5%, (p < 0.05). The differences in the water sorption, water solubility and volumetric shrinkage are not statistically significant between the groups (p > 0.05). Finally, the cell viability test show that the experimental resin formulated with TIMA monomer exhibited a cellular viability close to 100%. Due to its characteristics, TIMA monomer could be considered an alternative to UDMA in the composite resins with applications in dentistry.

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Hydrophobic composite resins using a novel allylic urethane monomer as additive

Cited by 2 publications

References 23 publications

Effect of an elastomeric urethane monomer on BisGMA-free resin composites containing different co-initiators

Effect of an elastomeric urethane monomer on BisGMA-free resin composites containing different co-initiators

Effect of replacing UDMA by a new tetramethacrylate monomer on the properties of dental resin composite

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