New Amine Accelerators for Composite Restorative Resins

Bräuer, G.; Dulik, Dianne M.; Antonucci, J.M.; Termini, D.; Argentar, H.

doi:10.1177/00220345790580100601

Cited by 34 publications

(11 citation statements)

References 7 publications

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“…DMPTI is considered as an accelerator for the selfcured resins. This fact suggests that the accelerators for the self-cured resins, mostly tertiary amines Bowen and Argentar, 1972;Brauer et at., 1979Brauer et at., , 1981Kawaguchi et at, 1985) could be used as a reducing agent for the VL-cured resin. One brand [Silux (SLX)] seemed to contain diethylaminoethyl methacrylate by the GC analysis.…”

Section: Discussionmentioning

confidence: 99%

Analysis of Photo-initiators in Visible-light-cured Dental Composite Resins

et al. 1988

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Seven commercial visible-light-cured (VL) dental composite resins were analytically studied for identification of the photo-initiator consisting of photo-sensitizer and reducing agent. Gas-liquid chromatography (GC) was used for the determination of the dilute components extracted from the composite resin. Mass spectroscopy (GC-MS) was used for confirmation of the qualitative data obtained by GC. The results showed that all composite resins examined included camphorquinone (CQ) as a photo-sensitizer. The concentration of CQ in the resin phase, however, ranged from 0.17 to 1.03% w/w. The composite resin with hybrid-sized filler tended to have a higher concentration of CQ than did the micro-filled composite resin. As for the reducing agent, two out of seven brands contained dimethylaminoethyl methacrylate (DMAEMA), and one included dimethyl-p-toluidine (DMPTI). The mixing ratio between CQ and the amine in these three composite resins also varied. Another four brands did not contain either DMAEMA or DMPTI, and would utilize different reducing agents.

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Section: Discussionmentioning

confidence: 99%

Analysis of Photo-initiators in Visible-light-cured Dental Composite Resins

et al. 1988

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“…[7][8][9] The use in dentistry or bone surgery for example needs to be carried out in the human body that means that the polymerization has to be performed at 37 °C. 10 Another challenge is the production of large construction pieces of PMMA such as hulls which can not be heated completely.…”

Section: Introductionmentioning

confidence: 99%

Simulation of radical polymerization of methyl methacrylate at room temperature using a tertiary amine/BPO initiating system

2015

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International audienceThe decomposition kinetics of the initiation reaction between benzoyl peroxide and a tertiary amine, either dimethyl-p-toluidine or dihydroxyethyl-p-toluidine, was studied by infrared spectroscopy and an Arrhenius plot was established. Based on these results, a model was developed for the polymerization of methyl methacrylate at room temperature. The model used both free volume and empirical models for propagation, termination and several side reactions. The model described the conversion for a very broad range of reaction conditions and the results were in good agreement with the experimental data. This study showed significant differences between dimethyl-p-toluidine and dihydroxyethyl-p-toluidine with respect to the gel time and the molar mass of poly(methyl methacrylate)

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“…The strength properties of restorative resins pressive strength of a number of experimental have been shown to depend on the composition resins and 2) to relate the data obtained to the of the monomer (4) and on the type and amount quantity of remaining double bonds in the resins, of amine involved in the polymerization (3).…”

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confidence: 99%

Restorative resins: hardness and strength vs. quantity of remaining double bonds

Asmussen

1982

European J Oral Sciences

173

152

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– It has been hypothesized that the Wallace indentation hardness of smooth surface resins is a factor of prime importance for the abrasion by food of Glass 1 restorations. In the present work factors affecting the hardness of polymers were investigated. In addition the tensile strength of composite resins was measured and related to the catalytic system of the polymer. It was found that for a given composition of the monomer the Wallace hardness number increased with increasing content of inhibitor, decreased with increasing content of peroxide, and was unaffected by changes in the content of amine. The hardness was well correlated with the quantity of double bonds remaining in the polymer. BISGMA‐based polymers showed no variation in hardness when the originating monomer varied with respect to content of a bi‐ or a trifunctional diluting monomer. Light‐polymerized polymers were relatively hard as compared to chemically cured materials of adequate setting time. The tensile strength of composite resins was predominandy determined by the monomer content of peroxide and increased herewith. The tensile strength was well correlated with the quantity of remaining double bonds in the constituting polymer.

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New Amine Accelerators for Composite Restorative Resins

Cited by 34 publications

References 7 publications

Analysis of Photo-initiators in Visible-light-cured Dental Composite Resins

Analysis of Photo-initiators in Visible-light-cured Dental Composite Resins

Simulation of radical polymerization of methyl methacrylate at room temperature using a tertiary amine/BPO initiating system

Restorative resins: hardness and strength vs. quantity of remaining double bonds

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