scholarly journals Effect of whitening dentifrices on the surface roughness of a nanohybrid composite resin

2016 ◽  
Vol 10 (02) ◽  
pp. 170-175 ◽  
Author(s):  
Gabriela Migliorin da Rosa ◽  
Luciana Mendonça da Silva ◽  
Márcio de Menezes ◽  
Hugo Felipe do Vale ◽  
Diego Ferreira Regalado ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Composite Resin ◽  
Wilcoxon Test ◽  
Control Group ◽  
Mean Values ◽  
Short Period ◽  
Significant Difference ◽  
Before And After ◽  
Nanohybrid Composite ◽  
One Way Anova

ABSTRACT Objectives: The present study verified the influence of whitening dentifrices on the surface roughness of a nanohybrid composite resin. Materials and Methods: Thirty-two specimens were prepared with Filtek™ Z350 XT (3M/ESPE) and randomly divided into four groups (n = 08) that were subjected to brushing simulation equivalent to the period of 1 month. The groups assessed were a control group with distilled water (G1), Colgate Total 12 Professional Clean (G2), Sensodyne Extra Whitener Extra Fresh (G3), and Colgate Luminous White (G4). A sequence of 90 cycles was performed for all the samples. The initial roughness of each group was analyzed by the Surface Roughness Tester (TR 200-TIME Group Inc., CA, USA). After the brushing period, the final roughness was measured, and the results were statistically analyzed using nonparametric Kruskal–Wallis and Dunn tests for intergroup roughness comparison in the time factor. For intragroup and “Δ Final − Initial” comparisons, the Wilcoxon test and (one-way) ANOVA were, respectively, performed (α = 0.05). Results: The roughness mean values before and after brushing showed no statistically significant difference when the different dentifrices were used. None of the dentifrices analyzed increased significantly the nanohybrid composite resin surface roughness in a 1 month of tooth brushing simulation. Conclusions: These results suggest that no hazardous effect on the roughness of nanohybrid composite resin can be expected when whitening dentifrices are used for a short period. Similar studies should be conducted to analyze other esthetic composite materials.

scholarly journals Manfaat Relaksasi Otot Progresif Bagi Klien DM Tipe II Untuk Mengurangi Gejala Fatigue

2021 ◽  
Vol 6 (2) ◽  
pp. 45-52
Author(s):  
Reny Sulistyowati
Keyword(s):  
Muscle Relaxation ◽  
Intervention Group ◽  
Progressive Muscle Relaxation ◽  
Wilcoxon Test ◽  
Bivariate Analysis ◽  
Control Group ◽  
P Value ◽  
Diabetic Patients ◽  
Significant Difference ◽  
Before And After

Fatigue is a widespread clinical complaint among adults with type 2 diabetes. Fluctuating glucose levels can cause fatigue. Several factors are associated with fatigue in diabetic patients, including physiological factors such as hypoglycemia or hyperglycemia, psychological factors such as depression associated with diabetes. Progressive muscle relaxation is a procedure to get relaxation in the muscles through two steps, namely by applying tension to a muscle group and stopping the tension then focusing on how the muscle relaxes, feeling the sensation of relaxation and fatigue is reduced. The aim of this study was to identify the effect of progressive muscle relaxation on fatigue symptoms in type II DM clients in 15 control groups and 15 intervention groups. The research method used a quasi-experimental design with a pretest-posttest control group design approach, consisting of one treatment (in the intervention group) and a control group. Data analysis was performed using univariate and bivariate analysis using t-independent and t-dependent tests. Wilcoxon test results in the intervention group and the control group showed a significant p-value of 0.002 (<0.05), meaning that there was a significant difference in fatigue symptoms in the intervention group before and after the intervention. This shows that there was a decrease in fatigue symptoms in the intervention group before and after combination OHO therapy and progressive muscle relaxation exercises (previously the average respondent in the intervention group experienced symptoms of severe fatigue, after intervention, the average value of fatigue symptoms turned into mild fatigue ). Conclusion: Progressive muscle relaxation combined with OHO therapy can reduce symptoms of fatigue compared to only OHO therapy.

scholarly journals PENGARUH PEMBERIAN JUS LIDAH BUAYA TERHADAP KADAR GLUKOSA DARAH PUASA PADA WANITA PREDIABETES

2012 ◽  
Vol 1 (1) ◽  
pp. 107-114 ◽  
Author(s):  
Putri Sukma Pertiwi ◽  
Hesti Murwani Rahayuningsih
Keyword(s):  
Treatment Group ◽  
Fasting Blood Glucose ◽  
Aloe Vera ◽  
Wilcoxon Test ◽  
Control Group ◽  
Food Record ◽  
Significant Difference ◽  
Before And After ◽  
Post Test ◽  
And Control

Background: Prediabetes is a condition which pioneers of DM. Diet management is the effective method to decrease fasting blood glucose (FBG) level. One of plant that correlates decreasing FBG level is Aloe vera. The purpose of  the study was to prove the effects of Aloe vera on FBG level in prediabetes women. Method: This study was quasi experiment with pre test-post test design. The subjects were people in Tlogosari Kulon Semarang who taken by consecutive sampling. Total subjects were 26 people which was divided in 2 groups. The treatment group was given juice Aloe vera 150 gram per day during 14 days and control group was not given juice Aloe vera. FBG level was measured before and after intervention using spectrofotometri method. During intervention, both of group recorded food intake using food record and food recall. Data was analyzed by Independent sample t-test, Mann Whitney test, and Wilcoxon test. Result : The decreasing of FBG level in treatment group was 20.38±14.7 (18.92%) mg/dl and control group was 0.38±11.12 mg /dl. Statistic analysis showed that there was significant difference at decreasing of FBG level in treatment group and control group. Conclusion : There was significant decreasing FBG level 20.38 mg/dl after given juice Aloe vera 150 gram per day during 14 days.

scholarly journals The Effect of Different Storage Conditions on the Physical Properties of Pigmented Medical Grade I Silicone Maxillofacial Material

2013 ◽  
Vol 2013 ◽  
pp. 1-9 ◽  
Author(s):  
Ayman A. Al-Dharrab ◽  
Seham B. Tayel ◽  
Mona H. Abodaya
Keyword(s):  
Surface Roughness ◽  
Physical Properties ◽  
Storage Conditions ◽  
Sem Analysis ◽  
Prosthetic Material ◽  
Control Group ◽  
Color Changes ◽  
Group I ◽  
Significant Difference ◽  
Before And After

Objective. This study aimed to evaluate the effect of different storage solutions that simulate acidic, alkaline, and sebum conditiions on the physical properties of pigmented (colorant elastomer) cosmesil M511 maxillofacial prosthetic material. Materials and Methods. Sixty specimens were prepared according to the manufacturer's instructions and were tested before and after immersion of different storage conditions for six months at 37 °C. The following tests were performed: color changes (group I), solution absorption (group II), surface roughness (group III), and scanning electron microscopy (group IV). Results. There were no significant changes observed in the color and solution absorption tests while surface roughness revealed significant difference between control group and other testing storage medium groups, and this result was supported by SEM analysis that revealed limited surface changes. Conclusions. Cosmaseil material is an acceptable cross-linked formulation that withstands storage in different solutions with variable pH. The addition of pigment cannot vary the physical properties of these materials. Surface roughness test as well as SEM microscopic study showed moderate changes indicating a limited effect on the surface of the material.

Scanning Electron Microscopy and Roughness Study of Dental Composite Degradation

2012 ◽  
Vol 18 (2) ◽  
pp. 289-294 ◽  
Author(s):  
Luís Eduardo Silva Soares ◽  
Louise Ribeiro Cortez ◽  
Raquel de Oliveira Zarur ◽  
Airton Abrahão Martin
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Surface Roughness ◽  
Composite Resin ◽  
Morphological Changes ◽  
Soft Drink ◽  
Dental Composite ◽  
Control Group ◽  
Significant Difference ◽  
Scanning Electron

AbstractOur aim was to test the hypothesis that the use of mouthwashes, consumption of soft drinks, as well as the type of light curing unit (LCU), would change the surface roughness (Ra) and morphology of a nanofilled composite resin (Z350® 3M ESPE). Samples (80) were divided into eight groups: Halogen LCU, group 1, saliva (control); group 2, Pepsi Twist®; group 3, Listerine®; group 4, Colgate Plax®; LED LCU, group 5, saliva; group 6, Pepsi Twist®; group 7, Listerine®; group 8, Colgate Plax®. Ra values were measured at baseline, and after 7 and 14 days. One specimen of each group was prepared for scanning electron microscopy analysis after 14 days. The data were subjected to multifactor analysis of variance at a 95% confidence followed by Tukey's honestly significant difference post-hoc test. All the treatments resulted in morphological changes in composite resin surface, and the most significant change was in Pepsi Twist® groups. The samples of G6 had the greatest increase in Ra. The immersion of nanofilled resin in mouthwashes with alcohol and soft drink increases the surface roughness. Polymerization by halogen LCU (reduced light intensity) associated with alcohol contained mouthwash resulted in significant roughness on the composite.

scholarly journals Cephalometric Changes Following Maxillary Expansion with Ni-Ti Leaf Springs Palatal Expander and Rapid Maxillary Expander: A Retrospective Study

2021 ◽  
Vol 11 (12) ◽  
pp. 5748
Author(s):  
Valentina Lanteri ◽  
Andrea Abate ◽  
Davide Cavagnetto ◽  
Alessandro Ugolini ◽  
Francesca Gaffuri ◽  
...  
Keyword(s):  
Los Angeles ◽  
Leaf Spring ◽  
Control Group ◽  
Maxillary Expansion ◽  
Average Decrease ◽  
Lateral Cephalograms ◽  
Significant Difference ◽  
Before And After ◽  
The Difference ◽  
One Way Anova

Background: The aim of this study is to evaluate and compare, through bidimensional cephalometry, skeletal and dental changes obtained from a rapid maxillary expander (RME) and a Ni-Ti leaf spring expander (Leaf) and compare them with an untreated control group. Methods: Records consisted of lateral cephalograms obtained before and after maxillary expansion of patients that underwent orthodontic treatment at the Department of Biomedical, Surgical and Dental Sciences. The Leaf expander group consisted of 9 males (mean age = 7.5 ± 0.9 years old) and 11 females (mean age = 8.2 ± 0.6 years old). The RME group of the present study was composed of 11 males (mean age = 7.8 ± 0.6 years old) and 12 females (mean age = 8.1 ± 0.5 years old). Digital cephalograms were traced using Dolphin Imaging software v.11.1 (Dolphin Imaging and Management Solutions; Los Angeles, CA, USA), which calculated all reported measurements. Each subject was assigned a random identification number, and the examiner was blinded to the subject when measuring. The difference between the two experimental times in all groups was evaluated using the Student’s t-test for dependent variables. The difference between the two evaluation times in each group for all the variables was used to perform a one-way ANOVA test between the three groups. Results: No statistically significant difference was noted, apart from the angle between the upper incisor and the SN and PP planes, which showed an average decrease of 3.25 and 2.55, respectively, and the angle between the lower incisors and the mandibular plane, which showed an average increase of 2.85 degrees. The one-way ANOVA showed no statistically significant difference between the three groups. Conclusions: It appears that the leaf expander and the RME present similar effects such as dental and skeletal changes.

scholarly journals THE IMPACT OF GREAT MOM GREAT CHILDREN TRAINING TO IMPROVE YOUNG STREET MOTHER STIMULATION SKILL

2018 ◽  
Author(s):  
Dessy Pranungsari ◽  
Nissa Tarnoto ◽  
Fatwa Tentama
Keyword(s):  
Unwanted Pregnancy ◽  
Test Sample ◽  
Wilcoxon Test ◽  
Control Group ◽  
Control Group Design ◽  
Group Participant ◽  
Significant Difference ◽  
Before And After ◽  
The Difference ◽  
The Impact

The objective of this research is to examine the impact of “Great Mom Great Children” training to improve young street mother stimulation skill. The subjects of the research are from Yogyakarta. They are young homeless mothers who are commonly referred to as a street mother, young mothers who are less than 18 years old, mothers for unwanted pregnancy, mothers who have 0 to 5 years old children and mothers who are upbringing their children themselves. The experiment design used in this research is untreated control group design with dependent pretest and post-test sample. The data is collected by using Children Stimulation Skill Development Scale. The researchers perform Wilcoxon Test to examine the difference between stimulation skill level before and after the test. The result suggested that there was a significant difference before and after the treatment was given. It can be seen from Z=-1,755 and p=0,079) (2-tailed)/0, 0395 (1-tailed) with p&lt;0.05. Also, the result of Mann Whitney U-test showed that the average level of stimulation skill in experiment group participant was higher than that of control group participant with the result of pretest-posttest (p= 0,074 (2-tailed)/ p= 0.037 (1-tailed) where p&lt;0.05 which meant significant. In conclusion,“Great Mom Great Children” training is an effective method to improve children’ stimulation skill for young street mothers.

scholarly journals Pengaruh Perendaman Kopi Robusta dan Arabika terhadap Kekerasan Resin Komposit Nanofiller

e-GIGI ◽  
2021 ◽  
Vol 9 (1) ◽  
Author(s):  
Fransiska M. Pardosi ◽  
Darmawati A. Indraswari ◽  
Lusiana Batubara ◽  
Nadia Hardini
Keyword(s):  
Composite Resin ◽  
Artificial Saliva ◽  
Control Group ◽  
Arabica Coffee ◽  
Treatment Groups ◽  
Hardness Tester ◽  
Robusta Coffee ◽  
Significant Difference ◽  
Post Hoc ◽  
One Way Anova

Abstract: Nanofiller composite resin has small filler size which enhances its properties. However, these properties could decrease due to several factors. Acidic liquid such as coffee could reduce the hardness of composite resin. This study was aimed to analyze the effect of robusta and arabica coffee immersion on the hardness of nanofiller composite resin. A total of 27 composite resin samples were used and then were polished by using a soflex disc for 30 seconds on each roughness level. Samples were then divided into three groups, as follows: the control group with artificial saliva and the treatment groups with robusta coffee and arabica coffee. The composite resin molds were immersed in the three groups for 5 days. After five days of immersion, the hardness of the sample was tested by using a Vickers hardness tester. Artificial saliva as the control group had the highest mean hardness value of 112.98±8.67 VHN, followed by robusta coffee, and then by arabica coffee. The One Way Anova and post hoc LSD test showed that there were significant differences in all groups (p<0.05) except for the two treatment groups, namely robusta and arabica coffee groups which did not show any significant difference in the resin hardness (p>0.05). In conclusion, robusta and arabica coffee affect the hardness of the nanofiller composite resin, but there is no significant difference in the hardness between the robusta and arabica coffee groups.Keywords: composite resin hardness, nanofiller, robusta coffee, arabica coffee Abstrak: Resin komposit nanofiller memiliki ukuran filler kecil yang dapat meningkatkan fungsinya namun fungsi tersebut dapat menurun oleh beberapa hal. Cairan asam yang dikonsumsi seperti kopi dapat menurunkan kekerasan resin komposit. Penelitian ini bertujuan untuk mengetahui pengaruh perendaman kopi robusta dan arabika terhadap kekerasan resin komposit nanofiller. Sampel resin komposit yang digunakan sebanyak 27 buah dan dilanjutkan dengan pemolesan menggunakan soflex disc selama 30 detik setiap tingkat kekasarannya. Sampel kemudian dibagi dalam tiga kelompok, yaitu kelompok kontrol dengan saliva buatan dan dua kelompok perlakuan dengan kopi robusta dan arabika. Sebanyak 27 buah resin komposit direndam ke dalam tiga kelompok tersebut selama lima hari kemudian diuji kekerasannya dengan vickers hardness tester. Saliva buatan sebagai kelompok kontrol memiliki nilai rerata kekerasan tertinggi sebesar 112,98±8,67 VHN, diikuti kopi robusta, dan nilai terendah yaitu kopi arabika. Hasil uji One Way Anova dan post hoc LSD menunjukkan terdapat perbedaan bermakna pada semua kelompok (p<0,05) kecuali pada kedua kelompok perlakuan yaitu antara kopi robusta dan arabika tidak menunjukkan adanya perbedaan kekerasan yang bermakna (p>0,05). Simpulan penelitian ini ialah kopi robusta dan arabika memengaruhi kekerasan resin komposit nanofiller namun tidak terdapat perbedaan kekerasan antara keduanya.Kata kunci: kekerasan resin komposit, nanofiller, kopi robusta, kopi arabika

scholarly journals Efektifitas Pendidikan Kesehatan Dengan Media Audiovisual Dan Leaflet Terhadap Sikap Remaja Putri Menghadapi Menarche

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Veronica Silalahi
Keyword(s):  
Health Education ◽  
Intervention Group ◽  
Wilcoxon Test ◽  
Control Group ◽  
P Value ◽  
Control Group Design ◽  
Audiovisual Media ◽  
Teenage Girls ◽  
Significant Difference ◽  
Before And After

Objective: to identify the effectiveness of health education about menarche using audiovisual media and leaflets on the attitudes of teenage girls Methods: This article used a quasi-experimental non-equivalent control group design. This study divided the subjects into two groups, the intervention group and the control group with 31 respondents each, that is class III and IV in Sawunggaling 1 primary school, Surabaya. This article used a simple random sampling. Data processing was carried out by pretest and posttest and health education interventions using audiovisuals and leaflets for the intervention group, and for the control group using leaflet. Data analysis used the Mann Whitney test to assess the mean increase in attitudes in both groups, and the Wilcoxon test to see an increase in attitudes after the intervention in both groups.Results: The results showed p-value = 0.000 (p <0.05) in the intervention groups. This means that there is a significant increase in the attitude of teenage girls before and after being given health education which shows the effectiveness of health education about menarche using audiovisual media and leaflets. Whereas in the control group data obtained that 0.754 (p> 0.005), this means that there is no significant difference from the attitudes of teenage girls before and after being given health education about menarche with media leafletsConclusion : health education using audiovisuals and leaflets that are effective in improving the attitudes of teenage girls in facing menarche 

scholarly journals Efficiency of different instruments used for composite filling polishing.

2021 ◽  
Vol 4 (1) ◽  
pp. 31-37
Author(s):  
Andrea-Csinszka Kovacs-Ivacson ◽  
Alexandra Mihaela Stoica ◽  
Mónika Kovacs ◽  
Mihai Pop
Keyword(s):  
Surface Roughness ◽  
Control Group ◽  
Mean Values ◽  
Significance Level ◽  
Caries Treatment ◽  
Before And After ◽  
Long Time ◽  
Surface Irregularities ◽  
Surface Staining

Abstract Introduction: Improper finishing and polishing of fillings leads to surface roughness of the restoration which leads to excessive plaque accumulation, gingival irritation, increased surface staining and poor aesthetics of restored teeth. Therefore, it is essential to use polishing instruments and pastes as a final step of simple caries treatment in order to achieve optimal long-time results. The aim of this study is to evaluate the efficiency of 4 different finishing and polishing instruments used for surface smoothening of aesthetic restorative materials in vitro. Materials and methods: 40 composite (Reality X) samples were prepared in vitro. Their surface irregularities were measured along 3 diagonals before and after polishing. Sof-Lex discs (3M Espe), rubber cones (Kenda), Arkansas stone (Fino) and polishing paste and a professional toothbrush (Kerr) were used for polishing. Each sample was polished under 5N pressure for 30 seconds at 3000 rpm. The surface roughness was than measured using a profilometer. Statistic analysis was performed using ANOVA and unpaired T-tests, the significance level was set at a value of p<0.05. Results: Based on the mean values, the smallest roughness was found in the control group- 0.11, while the highest in the rubber polishers and Arkansas stone group- 0.47 and 0.48. The values for the Sof-Lex disc group and the polishing paste-toothbrush group were 0.40 and 0.39. Statistical analysis showed no significant differences between the four groups. Conclusion: It is mandatory to use polishing tools in order to obtain a smooth surface of the restoration and avoid the unwanted long-term complications. Polishing using brush and abrasive paste produced the smoothest surface of the composite.

scholarly journals EFFECT OF EGGSHELL FLOUR ON BLOOD CALCIUM LEVELS IN PREGNANT MICE

2017 ◽  
Vol 3 (6) ◽  
pp. 791-795 ◽  
Author(s):  
Ida Ratna Safitri ◽  
Supriyana Supriyana ◽  
Bahiyatun Bahiyatun
Keyword(s):  
Simple Random Sampling ◽  
Control Group ◽  
Control Group Design ◽  
Pregnant Rats ◽  
Blood Calcium ◽  
Significant Difference ◽  
Food And Nutrition ◽  
Before And After ◽  
Pregnant Mice ◽  
One Way Anova

Objective: To examine the effect of eggshell flour on blood calcium levels in pregnant mice.Methods: This was a true experimental study with pretest and posttest control group design. The research was conducted at the Nutrition Laboratory of the Center for Food and Nutrition Studies, Gadjah Mada University on December 1, 2017 to December 31, 2017. There were 30 pregnant rats included using simple random sampling, which assigned in five groups. Spectrophotometer was used to measure blood calcium levels. Paired t-test and One-way ANOVA were used for data analysis.Results: There were significant differences in blood calcium levels before and after treatment with eggshell flour dose 5.4 mg/dl (p= 0.000), 10.8mg/dl (p = 0.000), and 21.6 mg/dl (p = 0.000). There was also significant difference in blood calcium levels in control group with generic tablet of calcium powder of 21.6 mg/dl (p = 0.000).Conclusion: There was a significant effect of given eggshell flour for 7 days with dose 5.4 mg/dl, 10.8 mg/dl, and 21.6 mg/l as well as generic tablet of calcium powder of 21.6 mg/dl in increasing blood calcium levels. Thus, eggshell can be used as alternative for calcium supplement.

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