Compressive Strength of Type IV Dental Stone With Ag Nanoparticles

Salah, Ali M.; Al-Noori, Ammar Khalid; Elias, Marwan Zuhair

doi:10.33899/rden.2020.126450.1012

Cited by 3 publications

(3 citation statements)

References 4 publications

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“…It was found that as the concentration of ZnO nanoparticles was increased, the CS value decreased. A similar study done by Salah et al [17] using Ag nanoparticles as a reinforcing material had findings that were in similarity to our study.…”

Section: Discussionsupporting

confidence: 93%

Comparative Evaluation of Compressive and Diametral Tensile Strength in Die Stone Reinforced With Different Types of Nanoparticles: An In Vitro Study

Ali¹,

Gaur²,

Pandey³

et al. 2023

Cureus

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Aim: To investigate the effect of different types of nanoparticles on the compressive strength (CS) and diametral tensile strength (DTS) of type IV dental stones. Materials and methods: A total of 100 specimens were made from the mould for all five groups. Four commercially available nanoparticles (aluminium oxide (Al 2 O 3 ), silicon dioxide (SiO 2 ), zinc oxide (ZnO), and zirconium oxide (ZrO 2 )) were used in this study in a concentration of 10%. CS and DTS tests were performed in a universal test machine. The data were statistically analysed using ANOVA and Student's t-test. Results: The interaction between nanoparticles and the type of dental stone was found to be statistically significant (p < 0.05). CS and DTS values decreased by adding all four nanoparticles. The lowest CS and DTS were observed in 10% ZnO nanoparticles when added to type IV dental stone. Conclusion: It was concluded that the addition of nanoparticles (Al 2 O 3 , SiO 2 , ZnO, and ZrO 2 ) to die stone significantly decreased the CS and DTS for all groups. Among all groups, the incorporation of 10% ZrO 2 nanoparticles (group E) to die stone showed significantly less decrease in CS and DTS compared to Al 2 O 3 , SiO 2 , and ZnO. Incorporation of ZnO nanoparticles, on the other hand, showed a significantly more amount of decrease in the CS and DTS compared to Al 2 O 3 , SiO 2 , and ZrO 2 .

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Section: Discussionsupporting

confidence: 93%

Comparative Evaluation of Compressive and Diametral Tensile Strength in Die Stone Reinforced With Different Types of Nanoparticles: An In Vitro Study

Ali¹,

Gaur²,

Pandey³

et al. 2023

Cureus

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“…Salah et al reported similar results regarding the addition of silver nanoparticles to dental stone type 4. In their study, the addition of silver nanoparticles did not show any effect on the morphology of dental stone compared to the control without nanoparticles [ 17 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Adding Silica Nanoparticles on the Physicochemical Properties, Antimicrobial Action, and the Hardness of Dental Stone Type 4

Aghbolaghi

Dizaj

Negahdari

et al. 2022

International Journal of Dentistry

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This study was conducted to investigate the effect of adding silica nanoparticles on the physicochemical properties, antimicrobial action, and the hardness of dental stone type 4. Dental stone type 4 powder was physically mixed with nanoparticle powder at weight percentages (0, 0.5, 1, and 2 percent). The required amount of powder was added to water according to the manufacturer's instructions. The prepared set materials were subjected to the physicochemical studies; Fourier transmission infrared spectroscopy (FTIR) was taken up to investigate the functional groups and X-ray diffraction (XRD) was used to evaluate the crystallinity. Also, scanning electron microscopy (SEM) was used to examine the morphology of the prepared samples. Agar diffusion test was carried out for the prepared samples against the Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus) to test the average growth inhibition zones. Finally, the Vickers surface hardness test was performed for each group using a hardness tester. The adding silica nanoparticles to dental stone type 4 increased the diameter of inhibition zones for the groups in both bacteria significantly ( p < 0.05). The results showed that adding silica nanoparticles to dental stone type 4 increased the diameter of inhibition zones for the groups in both bacteria significantly ( p < 0.0001). There was a significant difference between all groups and the 0% group in both bacteria ( p < 0.0001). Besides, the adding of silica nanoparticles to dental stone type 4 increased the surface hardness significantly ( p = 0.0057) without any effect on physicochemical properties. The 0% and the 0.5% groups had significant differences with the 2% group ( p = 0.0046 and p = 0.0205 respectively). Then, at least 2% silica nanoparticles are needed for a significant increase. Clinical trials are needed to enlarge for dental stone type 4 containing silica nanoparticles in the future.

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“…The specimens were crushed into fragments by the continually growing compressive force, at which point digitalized values in Newton/mm2 (MPa) were recorded. Compressive strength values for each sample were calculated [15].…”

Section: Test Measurement For Compressive Strengthmentioning

confidence: 99%

Evaluation of the Yttrium Oxide Effect on Some Mechanical Properties of (Type III) Dental Stone

Najwah Yousuf Hameed,

Fatima Kadhim Ghadeer,

Maytham Jalil Fadheel

2023

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For many years, gypsum compounds have been used in dentistry. They're used to make casts for various dental laboratory operations. Gypsum products have important characteristics such as "quality, abrasion resistance, compressive strength, hardness, linear setting expansion during setting, and detail replication". Additionally, the use of additives such as gum arabic, ferric oxide, calcium oxide, and calcium carbonate has greatly improved the compressive strength of gypsum products. The purpose of this study was to investigate the effects of yttrium oxide (Y2O3) addition on the hardness and compressive strength of dental stones. Thirty dental stone specimens of (type III) were prepared and separated into (3) groups: group (A) control group, no additives, group (B) 3% Y2O3, and group (C) 5% Y2O3. The control and experimental groups' mechanical parameters (surface hardness and compressive strength) were measured, and a Shore D hardness tester was used to indent the specimens. An electronic universal testing apparatus with computer control was used to conduct the compressive strength test. The Tukey-HSD test found no difference in surface hardness between the control and experimental groups, a non-significant difference in compressive strength between the control group and dental stone +3% Y2O3, and a significant difference in compressive strength between the control group and dental stone +5% Y2O3. Between dental stones with 3% and 5% Y2O3, there was a substantial difference in compressive strength. The addition of yttrium oxide at weight ratios of 3% and 5% to dental stone did not affect the surface hardness. The addition of 5% yttrium oxide decreased the compressive strengths.

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Compressive Strength of Type IV Dental Stone With Ag Nanoparticles

Cited by 3 publications

References 4 publications

Comparative Evaluation of Compressive and Diametral Tensile Strength in Die Stone Reinforced With Different Types of Nanoparticles: An In Vitro Study

Comparative Evaluation of Compressive and Diametral Tensile Strength in Die Stone Reinforced With Different Types of Nanoparticles: An In Vitro Study

Effect of Adding Silica Nanoparticles on the Physicochemical Properties, Antimicrobial Action, and the Hardness of Dental Stone Type 4

Evaluation of the Yttrium Oxide Effect on Some Mechanical Properties of (Type III) Dental Stone

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