Diametral tensile strength and water sorption of glass-ionomer cements used in Atraumatic Restorative Treatment

Cefaly, Daniela Francisca Gigo; Franco, Eduardo Batista; Mondelli, R.; Francisconi, Paulo Afonso Silveira; Navarro, Maria Fidela de Lima

doi:10.1590/s1678-77572003000200003

Cited by 28 publications

(23 citation statements)

References 12 publications

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“…Indeed, the water-sorption of EBPM+3DMAHDM+4.5MPC was 47 µg/mm 3 , which exceeded the ISO requirement of  40 µg/mm 3 [37]. While a commercial resin-modified glass ionomer (with uses including Class V restorations) had a water-sorption of 140 µg/mm 3 [47], to follow the ISO suggestion the EBPM+3DMAHDM+4.5MPC was excluded from biofilm experiments in the present study.…”

Section: Discussionmentioning

confidence: 59%

A protein-repellent and antibacterial nanocomposite for Class-V restorations to inhibit periodontitis-related pathogens

Wang

Xie

Imazato

et al. 2016

Materials Science and Engineering: C

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The objectives of this study were to develop a bioactive dental composite and investigate the effects of 2-methacryloyloxyethyl phosphorylcholine (MPC) and dimethylaminohexadecyl methacrylate (DMAHDM) in Class V composite on mechanical properties, water sorption, protein adsorption, and inhibition of four species of periodontitis-related biofilms for the first time. The resin consisted of ethoxylated bisphenol A dimethacrylate (EBPADMA) and pyromellitic glycerol dimethacrylate (PMGDM). DMAHDM, MPC and nanoparticles of amorphous calcium phosphate (NACP) were incorporated into the resin. Four species (Porphyromonas gingivalis, Prevotella intermedia, Aggregatibacter actinomycetemcomitans and Fusobacterium nucleatum) were tested for biofilm colony-forming units (CFU), live/dead, metabolic activity, and polysaccharide production. The results showed that adding DMAHDM and MPC to the composite did not compromise the mechanical properties (p>0.1), with acceptable water sorption values. Composite with 3% MPC reduced protein adsorption to 1/9 that of a commercial composite (p<0.05). For all four species, the composite with 3% DMAHDM+3% MPC had much greater reduction in biofilms than using DMAHDM or MPC alone (p<0.05). Biofilm CFU was reduced by about 4 orders of magnitude via 3% DMAHDM+3% MPC, compared to control. The inhibition efficacy for the four species was: P. gingivalis>P intermedia=A. actinomycetemcomitans>F. nucleatum. In conclusion, a novel bioactive composite with 3% DMAHDM and 3% MPC achieved the greatest reduction in biofilm growth, metabolic activity and polysaccharide of four periodontal pathogens. The new composite is promising for Class V restorations especially with subgingival margins to inhibit periodontal pathogens, combat periodontitis and protect the periodontium.

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Section: Discussionmentioning

confidence: 59%

A protein-repellent and antibacterial nanocomposite for Class-V restorations to inhibit periodontitis-related pathogens

Wang

Xie

Imazato

et al. 2016

Materials Science and Engineering: C

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“…However, a restorative resin-modified GIC indicated for anterior teeth, Fuji VIII (GC), is now available on market. Such material was chosen because it have presented higher diametral tensile and bond strengths than Ketac Molar (ESPE) 1,20 . On the other hand, there was no significant difference in the materials performance in the present short-term clinical trial.…”

Section: Discussionmentioning

confidence: 99%

Clinical evaluation of multisurface ART restorations

et al. 2005

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The aim of this study was to evaluate the performance of two different glass-ionomer cements: a high-density (Ketac Molar - ESPE) and a resin-modified cement (Fuji VIII - GC) using the Atraumatic Restorative Treatment technique to restore multisurface cavities in permanent teeth. A total of 60 ART restorations (30 with each material) were placed in schoolchildren (9-16 years of age) by two operators. After a period of 6 months, two independent examiners evaluated 59 restorations according to the criteria used in previous ART studies. Data were submitted to McNemar and Fischer tests. The success rate of the treatment was 98.3%. One restoration (Ketac Molar) was replaced by another material and was recorded as failure. The success rates of the restorations were 100% and 96.6% for Fuji VIII and Ketac Molar, respectively. There was no statistically significant difference in the restorations success between baseline and 6 months (p>0.05). In the same way, no significant differences were found between materials, cavity types or operators (p>0.05). The ART approach was highly appropriate and effective in restorations involving two or more tooth surfaces, after 6 months. The results showed a promising performance of the ART technique with both materials.

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“…Moreover, the immense water uptake causes swelling of the restoration, which exerts unwanted expansion forces to cavity walls 32) . In this regard, the BG-series may be expected to show better results in a clinical setting due to its more acceptable water sorption, which was in the range of commercial glass-ionomer cements (50-250 µg/ mm 3 ) 33,34) .…”

Section: Water Sorptionmentioning

confidence: 99%

Long-term water sorption and solubility of experimental bioactive composites based on amorphous calcium phosphate and bioactive glass

Par

Spanovic²,

Bjelovucic³

et al. 2019

Dent. Mater. J.

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The aim of this study was to evaluate water sorption and solubility of two series of experimental composites containing amorphous calcium phosphate (ACP) or bioactive glass (BG). Water sorption and solubility were measured for up to 287 days. The surface precipitation of calcium phosphates was evaluated by scanning electron microscopy. The ACP-series showed higher water sorption (223-568 µg/mm 3) than the BG-series (40-232 µg/mm 3). In contrast, the ACP-series had generally lower solubility (37-106 µg/mm 3) than the BG-series (1-506 µg/mm 3). The constant specimen mass for the ACP-series was attained after 14 days of water immersion, while the mass decrease due to long-term solubility in the BG-series lasted beyond 287 days. Calcium phosphates precipitated in composites with the BG filler loading of 10 wt% or more, as well as in all of the ACP-containing composites. The experimental composite series showed water sorption and solubility considerably higher than commercial materials.

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Diametral tensile strength and water sorption of glass-ionomer cements used in Atraumatic Restorative Treatment

Cited by 28 publications

References 12 publications

A protein-repellent and antibacterial nanocomposite for Class-V restorations to inhibit periodontitis-related pathogens

A protein-repellent and antibacterial nanocomposite for Class-V restorations to inhibit periodontitis-related pathogens

Clinical evaluation of multisurface ART restorations

Long-term water sorption and solubility of experimental bioactive composites based on amorphous calcium phosphate and bioactive glass

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