Physical-chemical properties of dental composites and adhesives containing silane-modified SBA-15

Martim, Gedalias C.; Kupfer, Vicente L.; Moisés, Murilo Pereira; Santos, Andressa dos; Buzzetti, Paulo Henrique M.; Rinaldi, Andrelson W.; Rubira, Adley F.; Girotto, Emerson M.

doi:10.1016/j.jmbbm.2018.02.009

Cited by 9 publications

(5 citation statements)

References 26 publications

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“…Regarding FS results, the experimental un lled adhesive yielded signi cantly higher values than the rest of the adhesive tested followed by the 0.5%Arg@MSNs and 1% Arg@MSNs adhesives, and signi cantly higher than that obtained for 2%Arg@MSNs adhesive. The higher FS values determined for the un lled experimental adhesive can be explained by its homogeneous composition, as it mainly contains methacrylate monomers [52]. The lowest values were recorded by the commercial adhesive SBUP, without statistical differences with SB1XT.…”

Section: Physico-mechanical Properties Of the Experimental Dental Adh...mentioning

confidence: 76%

L-Arginine-containing mesoporous silica nanoparticles embedded in dental adhesive for targeting cariogenic dental biofilm

López-Ruiz

Navas

Fernández-García

et al. 2022

Preprint

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Dental caries is the major biofilm-mediated oral disease in the world. The main treatment to restore the caries lesions consist of the use of adhesive resin composites due to their good properties. However, the progressive degradation of the adhesive in the medium term makes possible the proliferation of cariogenic bacteria allowing secondary caries to emerge. In this study, a dental adhesive incorporating a drug delivery system based on L-arginine-containing mesoporous silica nanoparticles (MSNs) was used to release this essential amino acid as a source of basicity to neutralise the harmful acidic conditions that mediate in the development of dental secondary caries. The in vitro and bacteria culture experiments proved that L-arginine was released in a sustained way from MSNs and diffused out from the dental adhesive, and effectively contributing to the reduction of the bacterial strains Streptococcus mutans and Lactobacillus casei. Furthermore, the mechanical and bonding properties of the dental adhesive did not change significantly after the incorporation of L-arginine-containing MSNs. These results are yielding glimmers of promise for the cost-effective prevention of secondary caries.

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Section: Physico-mechanical Properties Of the Experimental Dental Adh...mentioning

confidence: 76%

L-Arginine-containing mesoporous silica nanoparticles embedded in dental adhesive for targeting cariogenic dental biofilm

López-Ruiz

Navas

Fernández-García

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…Regarding the FS results, the experimental unfilled adhesives yielded significantly higher values than the rest of the adhesive tested, followed by the 0.5% Arg@MSN and 1% Arg@MSN adhesives, and significantly higher values than those obtained for the 2% Arg@MSN adhesive. The higher FS values determined for the unfilled experimental adhesive can be explained by its homogeneous composition, as it mainly contains methacrylate monomers [ 52 ]. The lowest values were recorded by the commercial adhesive SBUP, without significant differences from SB1XT.…”

Section: Resultsmentioning

confidence: 99%

L-arginine-containing mesoporous silica nanoparticles embedded in dental adhesive (Arg@MSN@DAdh) for targeting cariogenic bacteria

et al. 2022

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Dental caries is the major biofilm-mediated oral disease in the world. The main treatment to restore caries lesions consists of the use of adhesive resin composites due to their good properties. However, the progressive degradation of the adhesive in the medium term makes possible the proliferation of cariogenic bacteria allowing secondary caries to emerge. In this study, a dental adhesive incorporating a drug delivery system based on L-arginine-containing mesoporous silica nanoparticles (MSNs) was used to release this essential amino acid as a source of basicity to neutralize the harmful acidic conditions that mediate the development of dental secondary caries. The in vitro and bacterial culture experiments proved that L-arginine was released in a sustained way from MSNs and diffused out from the dental adhesive, effectively contributing to the reduction of the bacterial strains Streptococcus mutans and Lactobacillus casei. Furthermore, the mechanical and bonding properties of the dental adhesive did not change significantly after the incorporation of L-arginine-containing MSNs. These results are yielding glimmers of promise for the cost-effective prevention of secondary caries. Graphical Abstract

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“…Besides, the least filled composite Filtek Supreme XT (55.6 vol%) absorbed far more water than the other composites. Moreover, physical and chemical interactions between the matrix and the filler at the interphase strongly affected the water diffusion within the polymeric matrix [ 19 ]. Improper silanization of filler particles increases the hydrophilic surface area and, consequently, the pathway for water sorption [ 8 ].…”

Section: Discussionmentioning

confidence: 99%

Determination of Water Content in Direct Resin Composites Using Coulometric Karl Fischer Titration

et al. 2022

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This study evaluated the water content and sorption of direct composites over 60 days using coulometric Karl Fischer titration (KFT). Plate-shaped specimens (10 × 10 × 1 mm3 of thickness) were built up using the composites Clearfil Majesty Posterior (CM), Grandio SO (GS), and Filtek Supreme XT (FS). Water contents were determined in non-stored specimens (control) or after storage in distilled water for up to 60 days (n = 5). The amount of water transferred from the specimens heated at 200 °C (isothermal mode) was measured in the Coulometer. The water content of non-stored specimens ranged from 0.28 to 1.69 wt% (5.6 to 31.2 μg/mm3) for GS and FS, respectively. The highest values of water sorption were observed for FS (25.3 μg/mm3 after 60 days). GS and CM showed similar water sorption after 60 days (≈9 μg/mm3), but an ultimate higher water content was observed for CM (0.9 wt%; 22.0 μg/mm3) than GS (0.7 wt%; 14.8 μg/mm3). Except for CM, no significant water sorption was observed between 21 and 60 days of storage. Since all composites presented some base water content, water sorption data alone do not account for the ultimate water content in direct resin-based composites.

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Physical-chemical properties of dental composites and adhesives containing silane-modified SBA-15

Cited by 9 publications

References 26 publications

L-Arginine-containing mesoporous silica nanoparticles embedded in dental adhesive for targeting cariogenic dental biofilm

L-Arginine-containing mesoporous silica nanoparticles embedded in dental adhesive for targeting cariogenic dental biofilm

L-arginine-containing mesoporous silica nanoparticles embedded in dental adhesive (Arg@MSN@DAdh) for targeting cariogenic bacteria

Determination of Water Content in Direct Resin Composites Using Coulometric Karl Fischer Titration

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