scholarly journals THE IMMERSION EFFECT OF MIXTURE OF SMALL WHITE GINGER AND GARLIC EXTRACT ON COLOR CHANGES OF ACRYLIC PLATE

2020 ◽  
Vol 5 (1) ◽  
pp. 15
Author(s):  
Dea Pengasih ◽  
Debby Saputera ◽  
Bayu Indra Sukmana
Keyword(s):  
Color Change ◽  
Acrylic Resin ◽  
Simple Random Sampling ◽  
Garlic Extract ◽  
Control Group ◽  
Distilled Water ◽  
Control Group Design ◽  
Color Changes ◽  
Alkaline Peroxide ◽  
Acrylic Plate

Background: Heat cured acrylic resin is often used as a component of denture. One of the heat cured acrylic resin properties is water absorption that affects the change in acrylic color. An alternative using natural compound to minimize side effect is arising when compared to synthetic materials. A mixture of  small white ginger and garlic extract can be used as natural denture cleanser. Objective: This study aimed to know the color changes of heat cured resin plate that immersed in a mixture of 70% small white ginger and 10% garlic extract. Method: This was a true experimental study with pretest and posttest with control group design, using simple random sampling. The sample was cylindrical acrylic with 15 mm diameter and 2 mm thickness. The research was done using 18 samples heat cured acrylic resins which were divided into 3 groups, the mixture of 70% small white ginger and 10% garlic extract, alkaline peroxide, and distilled water. The color change of the sample was tested using digital analysis tools set. Results: The mean value of color changes in heat cured acrylic resin plate after immersion in a group of mixed extracts, alkaline peroxide, and distilled water were 6.23, 3.65 and 2.48. Data were analyzed using  One Way ANOVA parametric test and Dunnet T3 Post Hoc test. Conclusion: There is a difference in color changes of heat cured resin plate after the immersion in a mixture of extract and alkaline peroxide. Acrylic resin that immersed in mixed extract demonstrates a higher value of color change.

scholarly journals Effect of Red Dragon Fruit Juice on Acrylic Resin Color

2019 ◽  
Vol 1 (3) ◽  
pp. 143-150
Author(s):  
Fransiska Nuning Kusmawati ◽  
Diah Puspitasari Kusumaningrum
Keyword(s):  
Fruit Juice ◽  
Water Solution ◽  
Acrylic Resin ◽  
Simple Random Sampling ◽  
Statistical Test ◽  
Color Measurement ◽  
Control Group ◽  
Distilled Water ◽  
Control Group Design ◽  
Dragon Fruit

Background: Discoloration of denture acrylic resin base is one of the problems in appearance for patients who use them. The most common habit can cause discoloration in the denture usually associated with the patient's diet. One example is consuming red dragon fruit juice. Red dragon fruit juice contains many anthocyanin substances that can give color from colorless to purple. Furthermore, color changes indenture can also cause by the characteristic of the acrylic resin plate itself which can absorb water due to porosity. Objective: The aim of this study is to investigate the negative effects of consuming red dragon fruit juice solution on heat cured acrylic resin based plate. Methods: This type of research is laboratory experimental and the design of this research is pre-test post-test with control group design. The number of samples were 32 pieces selected using Simple Random Sampling method. The samples were divided into two groups, control (n = 16, distilled water solution) and tentative (n = 16, red dragon fruit juice solution). Color measurement using a digital spectrophotometer (VITA Easyshade). The initial color of the plate was measured before immersion into dragon fruit juice. The immersion period were 7 days to 14 days, the color of the plates was then measured after immersion. The data analysis test used was Friedman statistical test and Mann Whitney statistical test. Findings: There were significant differences in the color of the heat-cured acrylic resin plate after 7 and 14 days of immersion in distilled water solution and red dragon fruit juice solution. Novelty: Red dragon fruit juice can cause color discoloration on heat cured acrylic resin based plate.

scholarly journals THE SOAKING EFFECT OF 100% SMALL WHITE GINGER EXTRACT ON THE VALUE OF THE FLEXURAL STRENGTH OF ACRYLIC BASE (Flexural Strength Value of Acrylic Base Using Acrylic Resin Heat Cured Type)

2020 ◽  
Vol 5 (1) ◽  
pp. 10
Author(s):  
Nadya Islami ◽  
Debby Saputera ◽  
Rahmad Arifin
Keyword(s):  
Flexural Strength ◽  
Testing Machine ◽  
Base Material ◽  
Acrylic Resin ◽  
Simple Random Sampling ◽  
Control Group ◽  
Ginger Extract ◽  
Control Group Design ◽  
Alkaline Peroxide ◽  
Bonferroni Test

Background: The denture base material that is widely used is heat cured acrylic resin. One of mechanical properties of acrylic resin that must be considered in the selection of the basic denture material is flexural strength. Flexural strength is needed, among others, to resist the chewing power that must be received by dentures. The commonly used denture cleanser is Alkaline peroxide. 100% small white ginger extract can be used as natural denture cleanser. Objective:  This study aimed to compare the flexural strength of heat cured acrylic base which in soaked 100% small white ginger extract with Alkaline peroxide solution as artificial denture cleanser. Method: This study was a pure laboratory experimental study with post test only with control group design, using simple random sampling. The sample was rectangular with a size of 65x10x2,5 mm. The number of samples used was 24 heat cured resin acrylic which was divided into 3 immersion groups, 100% small ginger extract, Alkaline peroxide, and aquades. The immersion carried out for 3 days 19 hours 25 minutes, obtained from 5 minutes denture cleanser presentation every day for 3 years. Flexural strength was tested using a Universal Testing Machine 3 Point Bending. Result: The everage flexural strength value of heat cured acrylic resin after soaked in 100% small white ginger extract was 70,98, in Alkaline peroxide 87,37, and 91,05 in aquades. The data was annalyzed using parametric One Way ANOVA test and Post Hoc Bonferroni test. Conclusion: The flexural strength of heat cured acrylic resin that soaked in 100% small white ginger extract is smaller than Alkaline peroxide after immersed for 3 days 19 hours 25 minutes.

scholarly journals Analysis of the Influence of Food Colorings in Esthetic Orthodontic Elastomeric Ligatures

2016 ◽  
Vol 10 (1) ◽  
pp. 516-521 ◽  
Author(s):  
Vanessa Dias da Silva ◽  
Eduardo Martinelli S de Lima ◽  
Caroline Dias ◽  
Leandro Berni Osório
Keyword(s):  
Color Change ◽  
Black Tea ◽  
Control Group ◽  
Distilled Water ◽  
Water Control ◽  
Color Changes ◽  
Influence Of Food

Proposition: The purpose of this study was to evaluate in vitro the color changes of esthetic orthodontic elastomeric ligatures of different shades when exposed to four food colorings commonly found in the diet of patients. Materials and Methods: The sample consisted of esthetic orthodontic elastomeric ligatures in the colors pearl, pearl blue, pearl white and colorless, which were immersed for 72 hours in five different solutions: distilled water (control group), coffee, tea, Coca-Cola ® and wine. The color changes of the esthetic orthodontic elastomeric ligatures were measured with the aid of a spectrophotometer, at T1 - as provided by the manufacturer; and T2 - after colorings process. Results: The results indicated that the esthetic orthodontic elastomeric ligatures of all initial hues are susceptible to pigmentation. Among the evaluated colors, all changed the finished look and the color of the samples tested. In ascending order, the color of the samples was as follows: distilled water, Coca-Cola®, black tea, wine and coffee. Conclusion: The substances that have a greater potential for pigmentation in esthetic orthodontic elastomeric ligatures were black tea, wine and coffee, respectively. All shades of esthetic orthodontic elastomeric ligatures are susceptible to color change.

scholarly journals Evaluation of color change in acrylic and bisacrylic resin resins in different solutions

2018 ◽  
Vol 5 (4) ◽  
pp. 76
Author(s):  
Mone Laiz Bortoli ◽  
Cristina Von Appen ◽  
Camila Longoni ◽  
Carmen Beatriz Borges Fortes ◽  
Jefferson Tomio Sanada
Keyword(s):  
Color Change ◽  
Color Stability ◽  
Acrylic Resin ◽  
Color Variation ◽  
Color Reading ◽  
Control Group ◽  
Color Changes ◽  
Significant Difference ◽  
Prosthesis Material ◽  
Chlorhexidine Solution

Aim: This work aimed to evaluate the color stability of an acrylic resin chemically activated (ARCA) using different handling techniques, and a bisacrylic resin when exposed to different pigmentation solutions.Material and Methods: Silicon matrixes were confectioned (10x10x3mm) to be used as specimens. The groups were designed as follows: Group Pot, Group Brush, Group Manufacturer and Group Bisacrylic (n=18). Each group was exposed to three different pigmentation solutions: distilled water, coke and chlorhexidine digluconate 0.12%. Three readings were performed for each specimen using a spectrophotometer, and the evaluations were carried out in three different time. After the color reading, three averages and the standard deviation of variation were performed after 24 hours (T1), 7 days (T2) and 14 days (T3). Data were submitted to the ANOVA and 2 criteria and Tukey (P<0.05) in the statistical software SSPS 18 for Macintosh (SPSS Inc., Chicago, USA).Results: When compared the solutions in each group of material, there was no statistically significant difference, except for T3, where the group Dencor Brush and Bisacrylic demonstrated higher color variation in all the solutions, even in the control group, and the values in Chlorhexidine higher than the other, showing greater instability after 14 days.Conclusions: With the results, bisacrylic resin used as provisory prosthesis material presents greater color instability than the ARCA, when submitted to different solutions. Bisacrylic resin and Dencor Brush present significantly visible color changes in chlorhexidine solution after 14 days. All the materials in coke solution present homogeneity in the color change after 7 days exposition to the solution, with no visible color change.

scholarly journals Comparative evaluation of the color stability of universal composites

2021 ◽  
Vol 11 (Suppl. 1) ◽  
pp. 234-237
Author(s):  
Merve Gürses ◽  
Nevin Çobanoğlu ◽  
Omar Faez Abdulateef
Keyword(s):  
Comparative Evaluation ◽  
Color Change ◽  
Native Speakers ◽  
Color Stability ◽  
Composite Resins ◽  
Control Group ◽  
Distilled Water ◽  
Color Changes ◽  
Before And After ◽  
Native Speakers Of English

Aim: The aim of this study is to compare the color stability of different universal composites and to evaluate the effects of keeping them in water for 1 week before coloring. Methodology: Filtek Ultimate (FU), Estelite Ʃ Quick (EQ), and Ceram X One (CX) composites were used. The specimens were kept in the dark, dry environment for 24 hours, then polished, and each composite group was divided into 3 groups: the control, the group that was kept in water for 1 week before coloring and coloring (n=7). The samples in the control group were kept in distilled water for 3 weeks. Samples in the coloring group were colored with coffee for 2 weeks (C), and the samples in the last group were kept in water for 1 week and then stained with coffee for 2 weeks (W+C) (n=7). Color measurements for all samples were taken twice, once before and once after the coloring period. The color changes of the samples were measured using the ∆E* parameter, which was calculated with before and after measurements.  Results: For all composite resins, the ΔE values of the samples in the W+C and C groups were significantly higher than those in the control group. When the composites were compared with each other, the differences between the ΔE values of the composites in the control, W+C, and C groups were not statistically significant. For FU and ESQ, at the end of the coloration period, there were no statistically significant differences between the W+C and C groups. However, for CX, the color change of the samples in the W+C group was significantly higher than that in  the C group. Conclusion: Storage in distilled water for 1 week before staining did not reduce the color change values of the samples. Thus, after composite restorations are performed, there is no need to advise patients to avoid staining foods, especially in the first week after restoration.   How to cite this article: Abdulateef OF, Çobanoğlu N, Gürses M. Comparative evaluation of the color stability of universal composites. Int Dent Res 2021;11(Suppl.1):234-7. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.34   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Polishing can reduce discoloration of the nanofiller composite resin filling due to the use of chlorhexidine

2020 ◽  
Vol 9 (3) ◽  
pp. 252-256
Author(s):  
I Gusti Ketut Armiati
Keyword(s):  
Composite Resin ◽  
Color Change ◽  
Chlorhexidine Gluconate ◽  
Control Group ◽  
Control Group Design ◽  
Treatment Groups ◽  
Color Changes ◽  
Long Time ◽  
Cavity Design ◽  
The Difference

Nanofiller composite resin (NCR) restoration has a major problem, namely color changes. Polishing are factors that determi-ne color change and if accompanied by the use of mouthwash for a long time can cause more significant color changes. The 0.2% chlorhexidine gluconate mouthwash is a mouthwash that is often used in the community because it has low toxicity. However, using the chlorhexidine gluconate 0.2% mouthwash in the long term can cause more significant discoloration. This study is aimed to determine the difference between discoloration of polished and unpolished NCR on the soaking of 0.2% chlorhexidine gluconate mouthwash. This purely experimental research with a pretest and posttest with control group design, using 24 samples of premolar teeth prepared with class II cavity design and then filled with NCR. The samples were then di-vided into 4 treatment groups, namely polished and non-polished NCR, 0.2% chlorhexidine gluconate mouthwash and aqua-dest. Soaking was carried out 24 hours a day for 5 days in an incubator at 37ºC. Color changes of each group were measured using shade guide Vita Classical. The results were analyzed descriptively and the normality was tested by the Shapiro-Wilk and Levene's homogenity test with significance value of 0.05. Mann-Whitney for the different test. Based on the results of this study, it is concluded that the discoloration of the polished NCR was smaller than that was not polished on the soaking of chlorhexidine mouthwash 0.2%

PENGARUH PRACTICE BASED SIMULATION MODEL TERHADAP CRITICAL THINKING DI NURSING SKILL LABORATORY

2018 ◽  
Vol 4 (1) ◽  
Author(s):  
Retno Issroviatiningrum ◽  
Shanti Wardaningsih ◽  
Novita Kurnia Sari
Keyword(s):  
Critical Thinking ◽  
Simulation Model ◽  
Random Sampling ◽  
Simple Random Sampling ◽  
T Test ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Skill Laboratory ◽  
Paired T Test

ABSTRAK Upaya untuk meningkatkan mutu pendidikan keperawatan khususnya untuk mendukung peserta didik menjadi perawat profesional memerlukan proses pembelajaran dengan menggunakan fasilitas keterampilan klinis. Practice based simulation model didasarkan pada teori belajar konstruktif yang menegaskan bahwa pengetahuan tidak pasif ditransfer dari pendidik kepada peserta didik, tetapi dibangun oleh peserta didik melalui pengolahan pengalaman dan interaksi dengan lingkungan mereka. Dengan metode simulasi di laboratorium dapat mendorong mahasiswa untuk menggunakan critical thinking dalam mengambil keputusan dalam mengatasi masalah tanpa merugikan pasien yang sebenarnya. Penelitian ini bertujuan untuk menganalisis pengaruh practice based simulation model terhadap critical thinking pada mahasiswa semester VI di FIK Unissula Semarang. Penelitian ini menggunakan metode Quasy – Experiment dengan pendekatan pretest-posttest with control group design. Pengambilan sampel dengan teknik  simple random sampling dengan jumlah 21 responden baik kelompok intervensi maupun kelompok kontrol. Analisis data menggunakan uji Paired T-Test dan Independent Samples T-Test. Hasil penelitian selisih peningkatan critical thinking pada kelompok intervensi sebanyak 11.95 poin dan pada kelompok kontrol 2.05. Practice based simulation model berpengaruh terhadap critical thinking dengan nilai p=0.00<0.05. Disimpulkan bahwa practice based simulation model mempengaruhi critical thinking pada mahasiswa semester VI FIK Unissula Semarang. Kata kunci: Practice based simulation model, critical thinking

PENGGUNAAN MODEL PEMBELAJARAN STAD (STUDENT TEAMS-ACHIEVMENT DIVISIONS) DALAM PEMBELAJARAN MENULIS SURAT DINAS SISWA KELAS VIII DI SMP NEGERI SE-KECAMATAN PANYINGKIRAN KABUPATEN MAJALENGKA TAHUN AJARAN 2013/2014

2017 ◽  
Vol 3 (1) ◽  
pp. 447
Author(s):  
Iyay Robia Khoerudin ◽  
Neneng Titin ◽  
Eki Kiyamudin
Keyword(s):  
Random Sampling ◽  
Simple Random Sampling ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Student Teams ◽  
Post Test ◽  
Test Control

Penelitian ini bertujuan untuk mengetahui kemampuan menulis surat dinas siswa kelas VIII di SMP Negeri Se-Kecamatan Panyingkiran Kabupaten Majalengka, mengetahui kemampuan menulis surat dinas dengan menggunakan model pembelajaran STAD (Student Teams-Achievment Divisions) siswa kelas VIII di SMP Negeri Se-Kecamatan Panyingkiran Kabupaten Majalengka, serta menjelaskan efektifitas model pembelajaran STAD (Student Teams-Achievment Divisions) untuk meningkatkan  pengajaran menulis surat dinas siswa Kelas VIII di SMP Negeri Se-Kecamatan Panyingkiran Kabupaten Majalengka.Penelitian ini menggunakan pendekatan kuantitatif dan kualitatif dengan metode eksperimen Pre test-Post test Control Group Design, populasinya yaitu SMP Negeri Se-Kecamatan Panyingkiran Kabupaten Majalengka tahun ajaran 2013/2014, sedangkan  sampelnya ditentukan melalui teknik simple random sampling yaitu kelas VIII G SMP Negeri 2 Panyingkiran sebagai kelas eksperimen dan kelas VIII B SMP Negeri 1 Panyingkiran sebagai kelas kontrol. Instrumen pengumpulan data yang digunakan tes tertulis tes awal dan tes akhir, kuesioner, lembar observasi guru dan siswa, setelah data diperoleh maka dilakukan analisis data. Data kuesioner dan observasi dianalisis dalam bentuk uraian sedangkan data tes dianalisis dengan statistik dan di deskripsikan.Berdasarkan perhitungan statistik program SPSS 16.0 diperoleh hasil uji t pretes pada kedua kelas tersebut memiliki nilai t=5.429 derajat kebebasan (df)=n-1=38 nilai probability (sig 2-tailed) sebesar 0,000.  Hal ini berarti t hitung <0,005. Artinya 0,000<0,05, pada uji t ini bahwasanya pretes pada kedua kelas terdapat perbedaan yang signifikan antara kelas eksperimen dengan kelas kontrol.  Apabila ditinjau dari segi rata-rata pretes eksperimen lebih efektif daripada kelas kontrol. Hal ini terbukti dari rata-ratanya pretes kelas eksperimen 64,8 kelas kontrol 62,3 selisih rata-rata 2,5. Sedangkan rata-rata postes kelas eksperimen 81,2 dan kelas kontrol 69 terjadi selisih postes 12,2.

Efektivitas Model Pembelajaran Kooperatif Tipe Make-A Match Dalam Meningkatkan Kompetensi Sikap Siswa dan Kompetensi Pengetahuan Siswa Pada Pelajaran IPS

2020 ◽  
Vol 4 (1) ◽  
pp. 80
Author(s):  
Dina Anika Marhayani ◽  
Fajar Wulandari
Keyword(s):  
Random Sampling ◽  
Simple Random Sampling ◽  
Control Group ◽  
Control Group Design ◽  
Group Design

Penelitian ini bertujuan untuk mengetahui keefektifan model pembelajaran kooperatif tipe  Make- A Match terhadap: (1) kompetensi sikap siswa, (2) kompetensi pengetahuan siswa pada pelajaran IPS di kelas V SD N 1  Singkawang. Jenis penelitian ini adalah penelitian quasi eksperimen dengan desain pretest-posttest control group design. Teknik simple random sampling dilakukan untuk menentukan kelas eksperimen dan kontrol. Kelas eksperimen yakni V C diberi perlakuan dengan menggunakan model pembelajaran kooperatif tipe Make-A Match. Kelas kontrol V A diberi perlakuan dengan menggunakan metode ceramah dan diskusi. Pengumpulan data menggunakan tes, penilaian diri dan penilaian teman sejawat. Hasil penelitian menunjukkan bahwa model pembelajaran kooperatif tipe Make- A Match efektif terhadap: (1) kompetensi sikap siswa sebesar 0,016 <0,05, (2) kompetensi pengetahuan siswa pada kelas eksperimen diperoleh rata-rata N gain sebesar 61 % atau (0,61). Maka, model pembelajaran kooperatif tipe Make- A Match efektif terhadap hasil belajar siswa dilihat dari ranah kompetensi sikap dan pengetahuan. 

Ekstrak Ethanol Kulit Jeruk Purut (Citrus hystrix) Berpotensi sebagai Agen Penurun Kolesterol : Studi In Vivo

2020 ◽  
Vol 2 (1) ◽  
pp. 1
Author(s):  
Henas Deliara ◽  
Arum Kartikadewi ◽  
Dyah Mustika Nugraheni
Keyword(s):  
Random Sampling ◽  
Simple Random Sampling ◽  
Control Group ◽  
Control Group Design ◽  
Group Design ◽  
Post Test

Latar Belakang: Hiperkolesterolemia dapat menyebabkan penyakit cerebrovaskuler bahkan kematian. Salah satu pencegahan hiperkolesterolemia adalah dengan pemberian suplemen contohnya menggunakan kulit jeruk purut (Citrus hystrix) yang mengandung saponin, tanin dan flavonoid. Tujuan penelitian ini adalah membuktikan adanya pengaruh pemberian ekstrak ethanol kulit jeruk purut terhadap kadar kolesterol total pada tikus wistar jantan yang diberi diet tinggi lemak. Metode: Penelitian eksperimental  ini menggunakan metode post test only control group design. Jumlah sampel 30 ekor tikus wistar jantan dikelompokkan secara simple random sampling menjadi kelompok kontrol negative (K-), kontrol positif (K+), perlakuan 1 (P1), perlakuan 2 (P2) dan perlakuan 3 (P3). Pada kelompok K+, P1,P2 dan P3 tikus diberi minyak babi sebanyak 3 mg/200grBB/hari selama 3 minggu. Kelompok P1, P2 dan P3 diberikan ekstrak ethanol kulit jeruk purut sebesar 35 mg/200grBB/hari, 70 mg/200grBB/hari, dan 140 mg/200grBB/hari selama 3 minggu. Kadar kolesterol total dihitung dengan metode CHOD-PAP lalu dianalisis secara statistic dengan uji One Way Annova dan uji beda dengan Pos Hoc. Hasil: Dari 25 sampel, rerata kadar kolesterol total (K-):73,90 mg/dl±19,11 mg/dl; (K+):80,00 mg/dl±4,72 mg/dl; (P1):69,94 mg/dl±6,52 mg/dl; (P2):59,10 mg/dl±11,70 mg/dl; (P3):59,74 mg/dl±7,52 mg/dl. (p=0,032). Hasil uji Pos Hoc kelompok yang berbeda signifikan adalah K- dengan P2 (p=0,049), K+ dengan P2 (p=0,008) dan K+ dengan P3 (p=0,010). Kesimpulan: Terdapat pengaruh pemberian ekstrak ethanol kulit jeruk purut terhadap kadar kolesterol total pada tikus wistar jantan yang diberi diet tinggi lemak. Dosis terendah ekstrak kulit jeruk purut yang dapat menurunkan kadar kolesterol total adalah 70 mg/200 grBB/hari.

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