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

Par, Matej; Spanovic, Nika; Bjelovucic, Ruza; Marović, Danijela; Schmalz, Gottfried; Gamulin, Ozren; Tarle, Zrinka

doi:10.4012/dmj.2018-145

Cited by 30 publications

(25 citation statements)

References 41 publications

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“…However, the loss of mass was observed with CN which could be due to the release of soluble species from reactive fillers. The similar result was obtained in the experimental resin composites containing soluble reactive fillers 21,36) .…”

Section: Mass and Volume Changessupporting

confidence: 88%

Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers

Panpisut

Toneluck

2020

Dent. Mater. J.

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The aim of this study was to assess monomer conversion, dimensional stability (mass and volume changes), biaxial flexural strength (BFS), and fluoride release of recently developed resin composites containing alkaline fillers (Cention N; CN) compared with resinmodified glass ionomer cements (RMGICs: Riva LC; RL and Fuji II LC; FL), and conventional composite (Z350). FL showed highest monomer conversion (88±2%) followed by RL (73±10%), CN (59±2%), and Z350 (50±2%). RL exhibited highest mass and volume increase (10.22±0.04 wt% and 19.4±0.2 vol%). CN exhibited higher BFS (180±20 MPa) than RMGICs but lower than Z350 (248±27 MPa). The highest cumulative fluoride release at 6 weeks was observed with RL (136±22 ppm) followed by CN (36±4 ppm) and FL (30±3 ppm). CN exhibited monomer conversion higher than the composite. CN also released fluoride in the range of that observed with RMGICs but with higher flexural strength.

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Section: Mass and Volume Changessupporting

confidence: 88%

Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers

Panpisut

Toneluck

2020

Dent. Mater. J.

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“…The Zn-PBG-containing flowable resin composite can release calcium and phosphate ions to prevent dental caries, and the silica glass filler provides the required load-bearing ability. Previous studies have investigated the remineralization of demineralized teeth using composite materials that release calcium and phosphate ions, such as composites containing hydroxyapatite, α-tricalcium phosphate, B-tricalcium phosphate, and 45S5 bioactive glass as fillers [25,27,28]. These studies revealed that the bioactive glass in the composite resin has bioactive properties and leads to the formation of tooth-like hydroxyapatite [29].…”

Section: Discussionmentioning

confidence: 99%

Development of a Bioactive Flowable Resin Composite Containing a Zinc-Doped Phosphate-Based Glass

Lee

Seo

et al. 2020

Nanomaterials

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Flowable resins used for dental restoration are subject to biofilm formation. Zinc has antibacterial properties. Thus, we prepared a zinc-doped phosphate-based glass (Zn-PBG) to dope a flowable resin and evaluated the antibacterial activity of the composite against Streptococcus mutans (S. mutans) to extrapolate the preventative effect toward secondary caries. The composites were prepared having 0 (control), 1.9, 3.8, and 5.4 wt.% Zn-PBG. The flexural strength, elastic modulus, microhardness, depth of cure, ion release, inhibition zone size, and number of colony-forming units were evaluated and analyzed using ANOVA. The flexural strength of the control was significantly higher than those of Zn-PBG samples (p < 0.05). However, all samples meet the International Standard, ISO 4049. The microhardness was not significantly different for the control group and 1.9 and 3.8 wt.% groups, but the 5.4 wt.% Zn-PBG group had a significantly lower microhardness (p < 0.05). Further, the composite resins increasingly released P, Ca, Na, and Zn ions with an increase in Zn-PBG content (p < 0.05). The colony-forming unit count revealed a significant reduction in S. mutans viability (p < 0.05) with increase in Zn-PBG content. Therefore, the addition of Zn-PBG to flowable composite resins enhances antibacterial activity and could aid the prevention of secondary caries.

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“…Although considerable stress reductions were observed in the C-series by using BG amounts of 40–60 wt%, such high fractions of unsilanized versus reinforcing fillers would considerably diminish mechanical properties, especially since higher BG amounts also led to reduced DC 47 . The mechanical properties could be expected to further decrease over time due to high water sorption caused by soluble BG fillers 48 .…”

Section: Discussionmentioning

confidence: 99%

Polymerization shrinkage behaviour of resin composites functionalized with unsilanized bioactive glass fillers

Par

Mohn

Attin

et al. 2020

Sci Rep

Self Cite

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Previous work has shown that partial replacement of reinforcing fillers with unsilanized silica particles can diminish polymerization shrinkage stress of dental resin composites. The aim of the present study was to investigate whether such an effect can be attained by using unsilanized bioactive glass (BG). Incorporating BG fillers into resin composites is interesting due to their potential for exerting caries-preventive effects. Experimental light-curable composites with a total filler load of 77 wt% were prepared. Reinforcing fillers were partially replaced with 0–60 wt% of BG 45S5 and an experimental low-sodium fluoride-containing BG. The following properties were investigated: linear shrinkage, degree of conversion, shrinkage stress, maximum shrinkage stress rate, and time to achieve maximum shrinkage stress rate. The diminishing effect of BG 45S5 on shrinkage stress was mediated by a decrease in degree of conversion caused by this BG type. In contrast, as the degree of conversion remained unaffected by the experimental BG, the resulting shrinkage behaviour was governed by the effect of varying amounts of silanized and unsilanized fillers on material’s viscoelastic properties. The replacement of silanized reinforcing fillers with unsilanized BG did not reduce polymerization shrinkage stress unless the reduction was attained indirectly through a diminished degree of conversion.

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

Cited by 30 publications

References 41 publications

Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers

Monomer conversion, dimensional stability, biaxial flexural strength, and fluoride release of resin-based restorative material containing alkaline fillers

Development of a Bioactive Flowable Resin Composite Containing a Zinc-Doped Phosphate-Based Glass

Polymerization shrinkage behaviour of resin composites functionalized with unsilanized bioactive glass fillers

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