Impact of dietary solvents on flexural properties of bulk-fill composites

Eweis, Ahmed Hesham; Yap, Adrian Ujin; Yahya, Noor Azlin

doi:10.1016/j.sdentj.2018.04.002

Cited by 16 publications

(13 citation statements)

References 24 publications

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“…All materials conditioned in air demonstrated the highest flexural strength among various media. This result was consistent with several studies [11,30]. This can be explained by non-leakage of silica and filler particles with conditioning in air in contrast to storage in aqueous media [15].…”

Section: Discussionsupporting

confidence: 93%

“…Restorative materials with low flexural modulus are preferred for Class V cavities as they can flex with the teeth upon occlusal loading, thus preventing displacement during chewing action. On the flip side, the utilisation of materials with relatively higher flexural modulus and strength is required in occlusal and proximal cavities to withstand occlusal forces during mastication and therefore, to prevent fracture [29,30].…”

Section: Discussionmentioning

confidence: 99%

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Effect of Dietary Challenges on the Flexural Properties of Resin-based Composites

Yahya

Lim

Gonzalez

2021

ADUM

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This study aims to compare flexural strength and flexural modulus of different resin-based composites (RBCs) and to determine the impact of dietary solvents on flexural properties. Forty specimens (12x2x2mm) for each of two conventional (Aura Easy [AE]; Harmonize [HN]) and one bulk fill (Sonic Fill 2 [SF2]) were fabricated using customised plastic moulds. Specimens were light-cured, measured and randomly divided into four groups. The groups (n=10) were conditioned for 7 days at 37°C: in one of media: air (control), artificial saliva (SAGF), 0.02N citric acid and 50% ethanol–water solution. After conditioning, the specimens subjected to flexural testing. Two-way ANOVA and one-way ANOVA (post hoc: Tukey’s or Dunnett T3 tests) were used at a=0.05. Significant differences in flexural properties were observed between materials and conditioning media. Flexural strength and modulus values ranged from 124.85MPa to 51.25MPa; and 6.76GPa to 4.03GPa, respectively. The highest flexural properties were obtained with conditioning in air. Exposure to aqueous solutions generally reduced flexural properties. In conclusion, the effect of dietary solvents on flexural properties were material and medium dependent. For functional longevity of restorations, patients’ alcohol intake should be considered during material selection. Dietary advice (reduce alcohol consumption) should be given to patients post operatively.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Effect of Dietary Challenges on the Flexural Properties of Resin-based Composites

Yahya

Lim

Gonzalez

2021

ADUM

Self Cite

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“…Besides PRG fillers, giomers contain conventional silanated macro-and microfillers. This approach seems to be highly successful in terms of the giomer's high fracture toughness and flexural strength [19,20]. The fluoride release depends on the material's water sorption after placement in the moist environment and is therefore significantly lower than in resin-modified glass-ionomers or compomers [10,19].…”

Section: Introductionmentioning

confidence: 99%

Long-Term Assessment of Contemporary Ion-Releasing Restorative Dental Materials

Marović

Par

Posavec³

et al. 2022

Materials

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The objective was to evaluate new commercially available ion-releasing restorative materials and compare them to established anti-cariogenic materials. Four materials were tested: alkasite Cention (Ivoclar Vivadent) in self-cure or light-cure mode, giomer Beautifil II (Shofu), conventional glass-ionomer Fuji IX (GC), and resin composite Tetric EvoCeram (Ivoclar Vivadent) as a control. Flexural strength, flexural modulus, and Weibull modulus were measured one day, three months, and after three months with accelerated aging in ethanol. Water sorption and solubility were evaluated for up to one year. Degree of conversion was measured during 120 min for self-cured and light-cured Cention. In this study, Beautifil II was the ion-releasing material with the highest flexural strength and modulus and with the best resistance to aging. Alkasite Cention showed superior mechanical properties to Fuji IX. Weibull analysis showed that the glass-ionomer had the least reliable distribution of mechanical properties with the highest water sorption. The solubility of self-cured alkasite exceeded the permissible values according to ISO 4049. Degree of conversion of light-cured Cention was higher than in self-cure mode. The use of alkasite Cention is recommended only in the light-cure mode.

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“…Despite the organic matrix ( Malekipour et al, 2012 ), many variables can alter various characteristics of the resin composite materials, such as composite materials ( Ong et al, 2018 ), nanofiller content ( Scribante et al, 2015 ), and the presence of antibacterial substances ( Almousa et al, 2019 ). In addition, dietary solvents ( Eweis et al, 2018 ), brushing ( Scribante et al, 2015 ), and finishing methods ( Lopes et al, 2018 ) can alter the mechanical properties.…”

Section: Discussionmentioning

confidence: 99%

Changes in color and contrast ratio of resin composites after curing and storage in water

Pedrosa

Nogueira

Baldo

et al. 2021

The Saudi Dental Journal

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Purpose To verify the color change and contrast ratio of resin composites after curing and after 30 days of storage in water. Methods Dentin A2 shades of different light-cured dental resin composites (Vittra APS, FGM, Brazil; Z350 XT, 3M ESPE, EUA; Tetric N-Ceram, Ivoclar Vivadent, Liechtenstein, and Charisma Diamond, Heraeus Kulzer, Germany) were tested. Ten rounded specimens (8 mm × 2 mm) were prepared for each material. Reflectance for all samples was obtained using a spectrophotometer (Minolta CM 3700d, Konica Minolta, Japan) before curing, immediately after curing, and after 30 days of storage in water. The color change (ΔE* lab ) and contrast ratio (CR) data were analyzed using a one-way analysis of variance with Tukey's and paired t-tests (α = 1%). Results For all materials tested, significant color changes were noticeable after curing and after 30 days in water (p < 0.01). Significant changes in the CR values before curing, after curing, and 30 days of storage in water were observed in the resin composites investigated (p < 0.01) except for Z350 (p > 0.01). Conclusion The CR values and color changes after curing and 30 days of storage in water varied depending on the material tested. This study corroborates the clinical practice of curing a small amount of unpolymerized resin composite on the tooth surface to select the desired shade before undertaking esthetic restorative procedures.

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Impact of dietary solvents on flexural properties of bulk-fill composites

Abstract: The effect of dietary solvents on flexural properties of bulk-fill composites was material and medium dependent.

Cited by 16 publications

References 24 publications

Effect of Dietary Challenges on the Flexural Properties of Resin-based Composites

Effect of Dietary Challenges on the Flexural Properties of Resin-based Composites

Long-Term Assessment of Contemporary Ion-Releasing Restorative Dental Materials

Changes in color and contrast ratio of resin composites after curing and storage in water

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