scholarly journals The difference of the salivary volume before and after drinking the rosella tea (Hibiscus sabdariffa)

2010 ◽  
Vol 22 (3) ◽  
Author(s):  
Mutiara Indah Permata Sari Islami ◽  
Edeh Roletta Haroen ◽  
Sri Tjahajawati
Keyword(s):  
In Vitro Study ◽  
T Test ◽  
Hibiscus Sabdariffa ◽  
Test Analysis ◽  
Community Benefits ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
The Difference

Introduction: Roselle plants (Hibiscus sabdariffa) is one of the herbs that began to be used by the community. Benefits of this plant is quite a lot for health. The portion taken for consumption is the red flower petals. oselle tea is one of the sour beverages which can affect the salivary gland secretion. The purpose of this study is to analyzed the difference of salivary volume before and after drinking roselle tea. Methods: This study has been conducted to 40 students of Faculty of Dentistry, Padjadjaran University, ranging from 18-23 years of age with good general condition. This study is quasi-experimental in vitro study using the paired test analysis with α = 0,05 of the data collected from salivary volume. Results: The result of study indicates that the average of salivary volume before drinking roselle tea is 1,90 milliliter. After drinking roselle tea, the average of salivary volume is 4,54 milliliter. The result of paired test analysis shows that t-test is 16,172 and t-table is 2,022. The value of t-test > t-table. Result of statistic shown there is significant difference of salivary volume before and after drinking roselle tea. Conclusion: There is a difference of salivary volume before and after drinking roselle tea.

scholarly journals METODE KARYA WISATA DALAM PEMBELAJARAN MENULIS SAJAK

LOKABASA ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 133
Author(s):  
Haqi Ridho ◽  
Nunuy Nurjanah ◽  
Usep Kuswari
Keyword(s):  
Design Research ◽  
Field Trip ◽  
T Test ◽  
Test Analysis ◽  
Independent Variables ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
Santa Maria ◽  
Academic Year

Penelitian ini dilatarbelakangi oleh kurangnya kemampuan menulis sajak siswa kelas X IPA 2 SMA Santa Maria 3 Cimahi tahun Ajar 2017/2018. Penelitian ini bertujuan untuk mendeskripsikan perbedaankemampuan menulis sajak siswa kelas X IPA 2 SMA Santa Maria 3 Cimahi sebelum menggunakan metode karya wisata, sesudah menggunakan metode karya wisata,sertasebelum dan sesudah menggunakan metode karya wisata. Metode yang digunakan adalah studi kuasi eksperimen, dengan desain penelitian one group pretests posttest design. Sumber data penelitian adalah siswa kelas X IPA 2 SMA Santa Maria 3 Cimahi. Tehnik mengumpulkan data yang digunakan adalah tes tertulis, sedangkan teknik pengolahan data yang digunakan dalam penelitian ini menggunakan SPSS ver.20, Instrumen yang digunakan untuk mengumpulkan data adalah instrument tes.Data yang sudah diperoleh dianalisis menggunakan analisis t-test. Berdasarkan hasil penelitian yang telah dilaksanakan, rata-rata hasil belajar menulis sajak siswa kelas X IPA 2 sebelum menggunakan Metode karya wisata adalah (58,9) artinya siswa belum mampu menulis sajak, sedangkan rata-rata setelah menggunakan Metode karya wisata adalah (82,1) siswa sudah mampu menulis sajak.Dengan demikian adanya perbedaan yang signifikan antara kemampuan menulis sajak siswa sebelum menggunakan metode karya wisata dan sesudah menggunakan metode karya wisata, yang berarti hipotesis alternatif ( ) diterima dan hipotesis nol ( ) ditolak. terdapat perbedaan yang signifikan kemampuan menulis sajak siswa kelas IPA 2 SMA Santa Maria 3 Cimahi tahun Ajar 2017/2018 sebelum dan sesudah menggunakan Metode karya wisatadan dibuktikan dengan analisis t-test diperoleh harga  >  adalah 2.676 > 1.690. AbstractThis research is based by the lack of ability to write poem of students of class X IPA 2 SMA Santa Maria 3 Cimahi academic year 2017/2018. This study aims to determine the significant differences in the ability to write poem of students of class X IPA 2 SMA Santa Maria 3 Cimahi before and after using the field trip method . The method used is quasi-experimental study, with one group pretests posttest design research design. The source of research data is the students of class X IPA 2 SMA Santa Maria 3 Cimahi. Independent variables of research is the field trip methodi, while the dependent variable is the ability of students in writing poems. The instrument used to collect data is based test. The data obtained were analyzed using t-test. Based on the result of research that has been conducted, the average of learning result of writing poem of class X IPA 2 before using the  field trip method is (58,9) which proves that students have not been able to write poem, meanwhile after using field trip method is ( 82.1) students have been able to write poems. After the t-test analysis is obtained the price t_itung> t_tabel is 2.676> 1.690 which means alternative hypotesis (Ha) is accepted and the yangll hypothesis ( ) is rejected. That is, there is a significant difference in the ability to write poem students IPA 2 SMA Santa Maria 3 Cimahi academic year 2017/2018 before and after using the field trip method.

scholarly journals Comparison of the Remineralizing Effect of Brushing with Aloe vera versus Fluoride Toothpaste

2020 ◽  
Author(s):  
Teresa Al Haddad ◽  
Elie Khoury ◽  
Nada Farhat Mchayleh
Keyword(s):  
Repeated Measures ◽  
Aloe Vera ◽  
In Vitro Study ◽  
P Value ◽  
Fluoride Toothpaste ◽  
Before And After ◽  
The Difference ◽  
Group B ◽  
Ca:P Ratio

Abstract Objectives The aim of the present in vitro study is to compare the remineralization brushing effect of three toothpastes and Aloe vera (AV) gel. Materials and Methods Forty sound extracted teeth were placed in a demineralizing solution for 4 days and randomly assigned to four groups: group A: 1,450-ppm fluoride toothpaste; group B: AV nonfluoridated toothpaste; group C: AV 1,000-ppm fluoridated toothpaste; and group D: AV gel. A 3-minute pH cycling was performed twice a day for each group for 12 days. Specimens were analyzed before and after by scanning electron microscope—energy dispersive X-ray. Statistical analysis The outcomes were analyzed by Kolmogorov–Smirnov’s tests, repeated-measures analyses of variance followed by univariate analyses, and Bonferroni’s multiple comparisons tests to compare the calcium-to-phosphorus (Ca:P) ratio within time among toothpaste groups. Results Following remineralization, the Ca:P ratio increased in all groups. The difference of the Ca:P ratio was not significant between groups C, D, and A. The mean ratio was significantly lower in group B (p-value = 0.026). Conclusions The AV gel demonstrated a remineralization capacity equal to that of the 1,450-ppm fluoride toothpaste. In contrast, fluoride-free AV toothpaste showed a lower remineralization efficiency. Further studies are required to understand its mechanism.

scholarly journals The difference in saliva pH before and after brushing with fluoride containing toothpaste and without toothpaste

2008 ◽  
Vol 20 (3) ◽  
Author(s):  
Samuel Setiawan ◽  
Edeh Rolleta Haroen ◽  
Dede Hadidjah
Keyword(s):  
Drinking Water ◽  
Research Method ◽  
Control Group ◽  
Research Subjects ◽  
Male And Female ◽  
Significant Difference ◽  
Salivary Ph ◽  
Before And After ◽  
Quasi Experimental ◽  
The Difference

In administering fluoride through drinking water there is the risk of overdose, higher cost and inadequate availability of drinking water containing fluoride in developing countries like Indonesia. A safe fluoride source is contained in toothpaste. The purpose of this research was to obtain data concerning difference in saliva pH before and after brushing with toothpaste containing fluoride and without toothpaste. The research method used was the quasi-experimental method. Samples were collected by the way of purposive sampling, conducted on 43 male and female research subjects. The data were analyzed by statistical analysis using the t test at 95% confidence level. In this research a control group consisting of 43 people was used. Research results indicated that the average saliva pH before brushing was 7.174; after brushing with fluoride containing toothpaste salivary pH was 7.593. Result research of brushing without toothpaste showed an average saliva of 7.163 before brushing and 7.379 after brushing without toothpaste. The average changes in saliva pH before and after brushing using fluoride containing toothpaste was 0.216. The conclusion of this research was that there was significant difference in saliva pH before and after brushing with toothpaste containing fluoride; there was significant difference in saliva pH before and after brushing without toothpaste, and there was significant difference in saliva pH before and after brushing with toothpaste containing fluoride and without toothpaste.

scholarly journals Impact of Bleaching before or after Veneer Preparation on Color Masking Ability of Laminate Veneers: An In Vitro Study

2021 ◽  
Vol 2021 ◽  
pp. 1-9
Author(s):  
Gollshang Ahmad Mhammed Dalloo ◽  
Bestoon Mohammed Faraj ◽  
Abdulsalam Rasheed Al-Zahawi
Keyword(s):  
Hydrogen Peroxide ◽  
Color Change ◽  
In Vitro Study ◽  
Tooth Discoloration ◽  
Significant Difference ◽  
Color System ◽  
The Difference ◽  
Laminate Veneers ◽  
Cielab Color

Purpose. This study evaluates the effect of bleaching before or after veneer preparation and the depth of preparation on color masking ability of laminate veneers. Methods. Sixty extracted premolars were artificially stained to vita shade A4, verified by digital spectrophotometer (Vita Easy Shade V), and then divided into three groups: NB = nonbleached , BBP = bleaching before preparation, and BAP = bleaching after preparation. Based on the preparation depths, each group was further divided into two subgroups: S 1 = 0.5   mm and S 2 = 1.0   mm . BBP and BAP were subjected to one session of in-office bleaching using 35% hydrogen peroxide. IPS e-max CAD veneers of 0.5 and 1.0 mm thickness (corresponding to the preparation depths) of the same shade and translucency (HT A1) were cemented immediately to the bleached surfaces. Immediately after cementation, the color change Δ E between the baseline (after staining) and the resulted shades was measured using the Vita Easy Shade V digital spectrophotometer and CIELab color system. Results. Bleached groups exhibited a significant Δ E value compared to the nonbleached group ( p < 0.05 ). BAP showed the highest Δ E value. No significant difference was found between BBP and BAP. S2 revealed a significant Δ E value than S1 ( p < 0.05 ). No significant difference was found between S1of BAP and S2 of NB, BBP, and BAP ( p > 0.05 ). Regarding the color coordinates, the difference between the tested groups was highly significant in lightness ( Δ L ∗ ) ( p < 0.001 ), while no significant differences were found in green/red value ( Δ a ∗ ) and yellow/blue value ( Δ b ∗ ) ( p > 0.05 ). Conclusions. In cases of severe tooth discoloration, one session of in-office bleaching before or after veneer preparation and the preparation depth do not influence the color masking ability of laminate veneers.

scholarly journals Influence of Dental Composite Viscosity in Attachment Reproduction: An Experimental in Vitro Study

Materials ◽  
2019 ◽  
Vol 12 (23) ◽  
pp. 4001
Author(s):  
Vincenzo D’Antò ◽  
Simone Muraglie ◽  
Beatrice Castellano ◽  
Ettore Candida ◽  
Maria Francesca Sfondrini ◽  
...  
Keyword(s):  
In Vitro Study ◽  
Dental Composite ◽  
Maximum Deviation ◽  
Force System ◽  
Maximum Value ◽  
Significant Difference ◽  
The Difference ◽  
Level Of Significance ◽  
The Ideal

Background: Attachments are composite auxiliaries that are used during a clear aligner orthodontic therapy to achieve difficult tooth movements. Two important factors are the planned configuration and the actual position of these auxiliary elements to obtain the desired force system. The aim of the present study was to evaluate the role of different composite materials in the correct reproduction of attachment shape and position. Methods: The materials that were considered in the study were a flowable resin, a dental restorative material, and an orthodontic composite. The attachments were created on three models of extracted teeth. Once the impressions were performed, 25 attachments of different shapes were added onto each virtual model to obtain the necessary templates to make the attachments. Each tested material was used to create a set of 25 attachments that were then scanned with an accuracy of 10μm. The resultant STL (stereolithography) files were superimposed onto the ones from the initial virtual plan, through Geomagic software, and the aligned scans were then compared while using a color map. The parameters that were calculated to make a comparison between the created attachments and the ideal ones were the maximum deviation in defect and in excess, the overflow, and the volume’s difference. In addition to these measurements comparing the three above-mentioned groups, the difference in volume between all the ideal and realized samples were analyzed. To test for differences among the three groups, a one-way Analysis of variance (ANOVA) was used with a Bonferroni post-hoc test. The level of significance was set at p < 0.05. Results: No statistically significant results were found between the three groups regarding the maximum value in defect, the maximum value in excess, and the minimum value as control, while a statistically significant difference was found between the overflow of orthodontic resin when compared to the flowable composite. Conclusions: The three materials that were used in this study were appropriate for attachment fabrication. The fidelity of attachment reproduction was similar when using the three different composites. The orthodontic composite showed more overflow when compared with the flowable one.

scholarly journals Therapeutic effectiveness of frozen platelet concentrates for transfusion

Blood ◽  
1981 ◽  
Vol 57 (2) ◽  
pp. 243-249 ◽  
Author(s):  
HM Lazarus ◽  
EA Kaniecki-Green ◽  
SE Warm ◽  
M Aikawa ◽  
RH Herzig
Keyword(s):  
Vapor Phase ◽  
Platelet Concentrate ◽  
In Vitro Tests ◽  
Platelet Concentrates ◽  
Emergency Situations ◽  
Ultrastructural Studies ◽  
Significant Difference ◽  
Before And After ◽  
The Difference

Abstract Six patients received platelet concentrate transfusions from their HLA- identical siblings. Platelet concentrates were administered either fresh, or after being frozen in 10% dimethylsulfoxide, at a slow controlled rate (1 degree C/min) or rapidly (approximately 8 degrees C/min) in the vapor-phase of a liquid nitrogen refrigerator. The median freeze-thaw loss was 13.5%. The mean 1-hr and 20-hr corrected increments in platelet count were calculated for fresh platelet concentrates transfused before and after transfusion with controlled- rate frozen and vapor-phase frozen platelet concentrates. There was no significant difference among the first and second transfusion of fresh platelet concentrates, nor was the difference observed between fresh and controlled-rate frozen platelet concentrates significant. The difference between fresh and vapor-phase frozen platelet concentrates, and between controlled-rate frozen and vapor-phase frozen platelet concentrates were highly significant (p < 0.01). In vitro tests of aggregation using ristocetin and platelet ultrastructural studies paralleled the transfusion experience. Our results indicate that HLA- identical platelet concentrates can be successfully frozen and thawed for transfusion if a slow, controlled rate of freezing is employed. The use of HLA-identical frozen platelet concentrates may be important in emergency situations for the refractory patient and potentially for the establishment of a platelet concentrate bank.

scholarly journals PENGARUH TERAPI MUROTTAL TERHADAP TINGKAT KONSENTRASI SISWA KELAS VIII. G DI MTSN 2 MUARA ENIM TAHUN 2018

2019 ◽  
Vol 9 (01) ◽  
pp. 44-48
Author(s):  
Shinta Maharani ◽  
Devy Dwi Putri
Keyword(s):  
Standard Deviation ◽  
Experimental Design ◽  
Average Concentration ◽  
A Value ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
The Difference ◽  
The One ◽  
Mean Concentration

One of the tasks of the development of children aged 11-15 years is to think in a more abstract and logical way and more idealistic thinking. This ability to think will be disrupted if teenagers have difficulty concentrating during learning. Therefore we need a method that is fun and can make children relax in learning so that they can concentrate their concentration on ongoing learning. One method that can be used is the Murrotal Al-Qur'an therapy. The aim of the study was to determine whether there was any effect of murottal therapy on the concentration of students at Muara Enim 2 MTsN. This study used a quasi-experimental design with the design of the one group pretest posttest. The sample used was all students of class VIII.G at MTsN 2 Muara Enim. The results showed that the average concentration score of class VIII.G students before Murottal therapy was given was 10.84 with a standard deviation of 3.043. While the average concentration score of class VIII.G students after being given murottal therapy was 17.90 with a standard deviation of 1.233, so that the difference in mean concentration scores before and after murottal therapy was 7.06 with a standard deviation of 1.81. Wilcoxon signed ranks test obtained ρ value = 0,000, with a value of α = 0.05 (p <0.05), this shows that there is a significant difference between the concentration of students before and after being given murottal therapy. It is expected that the school can make a policy about the application of murottal therapy in increasing student concentration.

scholarly journals Efektivitas PBL setting TTW dan TPS ditinjau dari prestasi belajar, berpikir kritis dan self-efficacy siswa

2018 ◽  
Vol 5 (1) ◽  
pp. 116 ◽  
Author(s):  
Wahyu Hardiyanto ◽  
Rusgianto Heri Santoso
Keyword(s):  
Critical Thinking ◽  
Self Efficacy ◽  
Problem Based Learning ◽  
T Test ◽  
Learning Achievement ◽  
Critical Thinking Ability ◽  
Significant Difference ◽  
Thinking Ability ◽  
Quasi Experimental ◽  
The Difference

Penelitian ini bertujuan untuk mendeskripsikan keefektifan pendekatan problem-based learning (PBL) setting think talk write (TTW) dan problem-based learning (PBL) setting think pair share (TPS) serta mendeskripsikan perbedaan keefektifan antara PBL setting TTW dan PBL setting TPS ditinjau dari prestasi belajar, kemampuan berpikir kritis dan self-efficacy siswa. Penelitian ini merupakan penelitian eksperimen semu. Instrumen yang digunakan untuk mengumpulkan data adalah tes prestasi belajar, tes kemampuan berpikir kritis dan angket self-efficacy siswa. Data yang dikumpulkan dianalisis dengan menggunakan one sample t-test, dan analisis multivariat (MANOVA). One sample t-test dilakukan untuk menguji keefektifan pendekatan PBL setting TTW dan keefektifan pendekatan PBL setting TPS, sedangkan analisis multivariat (MANOVA) dilakukan untuk menguji perbedaan keefektifan antara kedua treatment tersebut ditinjau dari prestasi belajar, kemampuan berpikir kritis dan self-efficacy siswa. Hasil analisis menunjukkan bahwa pendekatan PBL setting TTW dan pendekatan PBL setting TPS efektif ditinjau dari prestasi belajar, kemampuan berpikir kritis dan self-efficacy siswa. Selain itu hasil analisis multivariat menunjukkan bahwa tidak terdapat perbedaan keefektifan yang signifikan antara pendekatan PBL setting TTW dengan pendekatan PBL setting TPS ditinjau dari prestasi belajar, kemampuan berpikir kritis dan self-efficacy siswa. The Effectiveness of PBL Setting TTW and TPS Seen from Students Learning Achievement, Critical Thinking and Self-Efficacy  AbstractThis study aims to describe the effectiveness of problem-based learning (PBL) setting think talk write (TTW) and PBL setting think pair share (TPS) and describe the difference of the effectiveness between PBL setting TTW and PBL setting TPS in terms of learning achievements, critical thinking ability and self-efficacy of grade students. This research is quasi-experimental research. The research instruments to collect the data are a learning achievement test, a test to examine the ability to think critically and a self-efficacy questionnaire. One sample t-test was conducted to examine the effectiveness PBL setting TTW and PBL setting TPS. Meanwhile, multivariate test (MANOVA) was carried out to determine the difference between PBL setting TTW and PBL setting TPS. The results show that both PBL setting TTW and PBL setting TPS are effective in terms of students learning achievements, critical thinking ability, and self-efficacy and there is no significant difference between the effectiveness of PBL setting TTW and the effectiveness of PBL setting TPS in terms of learning achievements, critical thinking ability and student self-efficacy.

scholarly journals Pengaruh Penambahan Campuran Kapur Tohor dan Kapur Barus (C10H16O) Terhadap Kepadatan Lalat Pada Sampah Organik

2019 ◽  
Vol 16 (1) ◽  
pp. 747
Author(s):  
Fadya Artha Aristanova ◽  
Gunung Setiadi ◽  
Isnawati Isnawati
Keyword(s):  
Organic Waste ◽  
T Test ◽  
Effective Dosage ◽  
P Value ◽  
Test Results ◽  
Waste Sample ◽  
Significant Difference ◽  
Before And After ◽  
Quasi Experimental ◽  
Test Result

Abstract: The Effect Of Lime (C10H16O) And Camphor (C10H16O) Against The Density Of Flies On Organic Waste. Fly is a disease-carrying vector so it is important to measure the density for control purposes. One of the controls that is done is on organic waste which is a breading source place of flies. Control is done by affixing the mixture of lime and camphor. This research aimed to determine the effect of mixture of lime and camphor against the density of flies in organic waste that is carried out in the garbage construction site while Southern Loktabat. This type of research is quasi-experimental that experimenting the provision of nine variations of dosage mixture of lime and camphor against the density of flies in organic waste with the organic waste sample was about 0,16m3. This research design used Pretest-posttest design. The analysis using statistical paired sample t-test, Kruskal Wallis test, and Least Significant Differences Test. The measurements showed a decrease in the density of the flies after administration of the lime and camphor mixture. Paired T-test results showed that in each treatment the p-value (2-tailed) <α (0.05) means that there is significant difference of flies density before and after treatment. Kruskal Wallis test result showed the p value (0,000) <α (0.05) which means there are significant differences between dosages. LSD test result showed that the most effective dosage is sixth dosage (35gr camphor+ 55gr lime/0,16m3 waste).

scholarly journals PERBEDAAN PH SALIVA ANTARA BERKUMUR DAN TANPA BERKUMUR AIR PUTIH SETELAH MENGUNYAH MAKANAN BERKARBOHIDRAT SEDERHANA

2016 ◽  
Vol 4 (1) ◽  
pp. 67-77
Author(s):  
Miftahul Jannah ◽  
Hidayati Hidayati ◽  
Afriwardi Afriwardi
Keyword(s):  
Drinking Water ◽  
T Test ◽  
Significant Difference ◽  
Salivary Ph ◽  
Post Test ◽  
Quasi Experimental ◽  
The Difference ◽  
Simple Carbohydrates ◽  
Paired T Test ◽  
Simple Carbohydrate

The Difference Of Salivary pH Between Rinsing and without Rinsing with Drinking Water After Chewing Simple Carbohydrate. Salivary pH is one of indicator in oral health. One factor that influences salivary pH is diet. Diet simple carbohydrates decrease salivary pH. Rinsing with drinking water suspected that can increase salivary pH. to know how the difference of salivary pH between rinsing and without rinsing with drinking water after chewing simple carbohydrates. Quasi experimental used with pre test and post test design on 40 students as samples. The measurement of salivary pH was done by digital pH meter “Pen Type pH tester”. The test which was used was paired T-test. The result Showed that Salivary pH the rinsing group after chewing was 6.96 ± 0.52 and 7.02 ±0,50 without rinsing. Salivary pH after rinsing minutes to 5 was 6.94 ± 0.52 and 6.79 ±0.52 without rinse. The pH of saliva rinsing the 20th minute was 7.12 ± 0.49 and 6.89 ± 0.50 without rinsing. The results of Paired t-test showed the significant difference from the salivary pH to 5th minute after rinsing and without rinsing with chewing simple carbohydrate foods with p <0.05 (p = 0.009) but, there was no significant difference of salivary pH in the 20th minute and 5 minutes after rinsing and without rinsing  with p> 0.05 (p = 0.140). rinsing by using drinking water can increase the salivary pH after chewing simple carbohydrate foods. Keywords: Rinsing drinking water, Simple Carbohydrates, Salivary pH

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