Gambaran Scanning Electron Microscope (Sem) Mikrostruktur Permukaan Resin Komposit Nanofiler Setelah Perendaman Dalam Kopi Arabika Gayo

Diansari, Viona; Sundari, Iin; Deswitri, Noniza

doi:10.24815/cdj.v10i2.11708

Cited by 4 publications

(5 citation statements)

References 5 publications

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“…Based on the paired t-test analysis test, it was stated that there were differences in the surface roughness of the hybrid composite resin before and after soaking in robusta coffee solution. In accordance with research conducted by Diansari et al [11] that based on the results of the paired t test, there was a significant difference (p < 0.05) in the surface roughness test results of composite resin before and after soaking in coffee.…”

Section: Discussionsupporting

confidence: 91%

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The Effect of Robusta Coffee Immersion on the Surface Roughness of Hybrid Composite Resin

Atmaja¹,

Harniati²,

Aristiyanto³

et al. 2022

Proceedings of the International Conference on Sustainable Innovation on Health Sciences and Nursing (ICOSI-HSN 2022)

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Hybrid composite resin is a restorative material that has a filler size ranging from 0.4 to 1.0 µm which is resistant to fracture, has a colour similar to the tooth structure, and resistant to abrasion. Hybrid composite resin has the property of absorbing liquid like robusta coffee. Robusta coffee contains acids that can cause surface roughness in hybrid composite resins. The purpose of this study was to determine the effect of Robusta coffee immersion on the surface roughness of the hybrid composite resin. The research sample amounted to 27 which were printed in the form of a cylinder measuring 10 mm and a thickness of 4 mm. Each sample was immersed in distilled water for 24 h and then tested for surface roughness. Group A was immersed in robusta coffee solution for 3 days. Group B was immersed in robusta coffee solution for 5 days. Group C was immersed in robusta coffee solution for 7 days. Then, the surface roughness of the sample was measured using the Surfcorder SE 1700 brand surface roughness tool and the results were paired t-test and One Way Anova. The results of the paired t-test showed p-value = 0.000 which means that there is a significant difference between the pre-test and post-test scores. The results of the One Way Anova test showed p-value = 0.039, which means that there was a significant difference between the sample groups. There is an effect of robusta coffee immersion on the surface roughness of the composite resin.

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Section: Discussionsupporting

confidence: 91%

“…The instability of the compound is caused by cross-linking with H + ions and the breaking of double bonds in the polymer matrix. When the double bonds in the polymer matrix are broken, it can erode the matrix material and leave filler protrusions so that roughness occurs on the surface of the composite resin [11].…”

Section: Discussionmentioning

confidence: 99%

The Effect of Robusta Coffee Immersion on the Surface Roughness of Hybrid Composite Resin

Atmaja¹,

Harniati²,

Aristiyanto³

et al. 2022

Proceedings of the International Conference on Sustainable Innovation on Health Sciences and Nursing (ICOSI-HSN 2022)

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“…This instability then caused the break of matrix polymer double chain, the breaking polymer chain could cause the matrix material to erode and affect the hardness of composite resin. 29,30…”

Section: Discussionmentioning

confidence: 99%

The Effect of Espresso and Drip Brewing Coffee Methode to The Hardness of Bulk-Fill Composite Resin

Atmani¹,

Purbaningrum²,

Fulyani³

et al. 2022

DMJ

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Background: The most restoration material used currently in dentistry was composite resin. The newest generation of composite resin was bulk-fill composite resin. The bulk-fill composite resin had advantages of lower polymerization contraction and a more straightforward and faster restoration technique. One of the factors which could affect the hardness of composite resin was the consumption of acidic drinks. The acidic beverage that people often consumed is coffee. A few coffee brewing methods were espresso and drip brewing.Objective: This research aimed to identify the effects of coffee soaking through espresso and drip brewing methods on bulk-fill composite resin's hardness.Methods: his research was experimental research, with a post-test control group design and a total sample of 27 samples. The soaking process was taken for seven days at a temperature of 37˚C on artificial saliva, espresso, and drip brewing coffee methods. The hardness of bulk-fill composite resin was measured after seven days by using Vickers hardness. The statistic test exerted One-Way ANOVA.Results: This research found a significant difference in bulk-fill composite resin's hardness among all groups, p-value = 0.00 (p<0.05). The result of the post-hoc LSD test showed a significant difference in the change of bulk-fill composite resin hardness between the artificial saliva group and espresso group (p=0,00) and no significant difference found between the artificial saliva group and drip brewing group (p=0.85).Conclusion: Soaking with espresso coffee has the smallest hardness value compared to soaking with drip brewing coffee and artificial saliva, so soaking with espresso coffee is the most influential on the hardness of the bulk fill composite resin.

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“…SEM aims to determine the surface topography, determine the solid microstructure such as the morphology of a sample, SEM is an electron microscope that can display surface images and details of a specimen with high resolution [14]. In this test the magnification carried out was 1000x and 2000x.…”

Section: Scanning Electron Microscopy (Sem) Of Rice Husk Carbonmentioning

confidence: 99%

Carbonization of rice husk for adsorption of phosphate compounds: Influence of temperature and NaOH activator

Budiastuti,

Badarjihadi,

Purnama

et al. 2024

E3S Web of Conf.

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Rice husk is mostly composed of cellulose, hemicellulose, and lignin that can be converted into carbon to be used as an adsorbent. Phosphate is one of the elements that cause eutrophication, resulting in algae blooming. The purpose of this research is to determine the best carbonization temperature and concentration of NaOH activator. The phosphate compounds studied are Sodium Tripolyphosphate (STPP) as artificial phosphate compounds and phosphate compounds in laundry wastewater. Carbonization of rice husk was done for 1 hour with temperature varied at 400, 425 and 450°C. The carbon activation of rice husk was done for 24 hours with variation of NaOH concentrations of 0.3, 0.5, and 0.7 M. The performance test of 100 mesh activated carbon was performed at a speed of 100 rpm and stirring time of 45 minutes. Activated carbon with the best characteristics was obtained from a carbonization temperature of 450°C and activated by 0.3 M NaOH. The characteristics obtained were 1.90%, 35.82%, 20.04%, 42.25%, 49.4 mg/g for water content, ash content, volatile matters, fixed carbon, methylene blue adsorption, respectively. The best dose was 16 g/L of active carbon with an adsorption efficiency of 75.15% on STPP and 93.7% on laundry wastewater.

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Gambaran Scanning Electron Microscope (Sem) Mikrostruktur Permukaan Resin Komposit Nanofiler Setelah Perendaman Dalam Kopi Arabika Gayo

Cited by 4 publications

References 5 publications

The Effect of Robusta Coffee Immersion on the Surface Roughness of Hybrid Composite Resin

The Effect of Robusta Coffee Immersion on the Surface Roughness of Hybrid Composite Resin

The Effect of Espresso and Drip Brewing Coffee Methode to The Hardness of Bulk-Fill Composite Resin

Carbonization of rice husk for adsorption of phosphate compounds: Influence of temperature and NaOH activator

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