Conventional and Resin-Modified Glass Ionomer Cement Surface Characteristics after Acidic Challenges

Nica, Irina; Stoleriu, Simona; Iovan, Alexandru; Taraboanta, Ionut; Pancu, Galina; Tofan, Nicoleta; Brânzan, Răzvan; Andrian, Sorin

doi:10.3390/biomedicines10071755

Cited by 8 publications

(7 citation statements)

References 36 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, the difference between the three study groups was statistically non-significant, with p=0.6. These results can be explained by the studies by Nica et al (2022) and Wheeler et al (2019) after immersing samples in Coca-Cola for glass ionomer and compomers and other acidic agents, and no statistically significant difference was seen on microhardness of any restorative material following immersion in the acidic beverages.…”

Section: Discussionmentioning

confidence: 88%

Impact of acidic beverages on esthetic restorations concerning microhardness and color stability: a comparative assessment

Verma,

Agarwal,

Jyothi R.

2023

Multidiscip. Sci. J.

View full text Add to dashboard Cite

Recently, the focus has been placed on esthetic restorations by both clinicians and subjects. With the intake of acidic beverages popular these days, erosive wear of the esthetic restoration results in discoloration, raising a concern and affecting the cost. The objective of the current research was to assess how acidic drinks affected the microhardness and color stability of several esthetic restorative materials. 120 samples were split into three groups of 40 individuals. Each Group I had organically modified ceramics (ORMOCER), Group II had nanoceramics, and Group III had microhybrid composite restorations. The samples were made from the aluminum cylindrical mold of 5mm depth and 10mm diameter, followed by immersion in 25ml acidic beverages (Pepsi) for 10 minutes for 20 days. Microhardness was then assessed using a Vickers diamond intender for each sample on the 10th and 20th day. At baseline, mean hardness was 58.12±1.74, 60.06±0.36, and 63.22±0.44, respectively, for ormocer, nanoceramics, and microhybrid composite. It was seen that the microhardness was higher for the microhybrid composite. However, the difference was statistically non-significant between the three groups with p=0.864. Microhardness on the 10th day was highest for the microhybrid composite, followed by nanoceramics and ormocer (p= 0.001). However, on the 20th day, the difference was statistically non-significant between the three groups. The study, considering its limitations, concludes that the finest behavior and microhardness are associated with organically modified ceramics after immersion in acidic beverages. Nanoceramics showed the second-best behavior, and microhybrid composite resins were the least among the three.

show abstract

Section: Discussionmentioning

confidence: 88%

Impact of acidic beverages on esthetic restorations concerning microhardness and color stability: a comparative assessment

Verma,

Agarwal,

Jyothi R.

2023

Multidiscip. Sci. J.

View full text Add to dashboard Cite

show abstract

“…However, a higher calcium release may correspond to alterations in the material’s mass and solubility [ 44 , 45 ]. Also, it was shown that the conventional GIC was more affected by an acidic environment when compared to resin-modified GIC [ 46 ].…”

Section: Discussionmentioning

confidence: 99%

Mechanical Properties and Ion Release from Fibre-Reinforced Glass Ionomer Cement

Ivica,

Šalinović,

Jukić Krmek

et al. 2024

Polymers

View full text Add to dashboard Cite

The aim of this study was to compare the mechanical properties and ion release from a commercially available resin-modified glass ionomer cement to a formulation reinforced by the addition of short glass fibres at various percentages. Methods: Three experimental groups were prepared by adding a mass ratio of 10%, 15% and 20% of short glass fibres to the powder portion of the cement from a capsule (GC Fuji II LC), while the control group contained no fibres. Microhardness (n = 12), fracture toughness, and flexural, compressive and diametral tensile strength (n = 8) were evaluated. To study ion release, readings were obtained utilising fluoro-selective and calcium-selective electrodes after 24 h, 7 days and 30 days (n = 12). The spatial distribution of fibres within the material was evaluated through scanning electron microscopy. The data were analysed using one-way ANOVA with a Bonferroni adjustment. Results: The findings suggest that elevating fibre weight ratios to 20 wt% results in improved mechanical properties (p < 0.05) in microhardness, flexural strength, diametral tensile strength and fracture toughness. In terms of ion release, a statistically significant difference (p < 0.001) was observed between the groups at the conclusion of 24 h and 7 days, when the fluoride release was much higher in the control group. However, after 30 days, no significant distinction among the groups was identified (p > 0.05). Regarding calcium release, no statistically significant differences were observed among the groups at any of the evaluated time points (p > 0.05). SEM showed the fibres were homogeneously incorporated into the cement in all experimental groups. Conclusions: Resin-modified glass ionomer enhanced with short glass fibres at a weight loading of 20% showcased the most favourable mechanical properties while concurrently maintaining the ability to release fluoride and calcium after a 30-day period.

show abstract

“…During the maturation stage, which extends to months following the initial setting reaction, various processes take place which result in changes of compressive strength 26 , 49 , hardness 49 – 51 , toughness 26 , 49 , wear performance 49 , and opacity of the restorative 26 . The resultant functional properties of GICs, including their mechanical performance 52 – 56 , and surface state 57 , 58 , depend on the conditioning environment. Its acidity 54 , 55 , and chemical composition 55 , 59 affect the kinetics of the maturation stage, as reflected in the resultant performance of a GIC.…”

Section: Discussionmentioning

confidence: 99%

The influence of hydrothermal fatigue on the clinically relevant functional properties of conventional glass-ionomer cements

Łępicka

Niewczas

Rodziewicz

et al. 2023

Sci Rep

View full text Add to dashboard Cite

During their everyday service, the restorative dental materials are subjected to temperature changes which can be viewed as intensive in the context of the highest allowed temperatures for these materials. In this work, the effect of hydrothermal fatigue on the in vitro tribological performance, compression strength, microhardness, and surface roughness of glass-ionomer cements was studied. Samples of 3 commercially available cements were divided into the reference (aged 14 days) and thermocycled (20,000 cycles; 5–55 °C) groups. The results obtained show that functional properties of the specimens subjected to thermal fatigue significantly differ from the literature data on the cements aged at constant temperatures. The effect of hydrothermal fatigue on the functional properties of cements is discussed in the context of processes induced by exposure to variable temperatures.

show abstract

Conventional and Resin-Modified Glass Ionomer Cement Surface Characteristics after Acidic Challenges

Cited by 8 publications

References 36 publications

Impact of acidic beverages on esthetic restorations concerning microhardness and color stability: a comparative assessment

Impact of acidic beverages on esthetic restorations concerning microhardness and color stability: a comparative assessment

Mechanical Properties and Ion Release from Fibre-Reinforced Glass Ionomer Cement

The influence of hydrothermal fatigue on the clinically relevant functional properties of conventional glass-ionomer cements

Contact Info

Product

Resources

About