scholarly journals Effect of Erbium:Yttrium-Aluminum-Garnet Laser Combined with Mineralizing Agents on Microhardness of Demineralized Dentin

2019 ◽  
Vol 13 (01) ◽  
pp. 011-016
Author(s):  
Hila Hajizadeh ◽  
Atefeh Nemati-Karimooy ◽  
Peiman Babaee-Rishkhori
Keyword(s):  
Er:Yag Laser ◽  
Additional Treatment ◽  
Treatment Modalities ◽  
Control Group ◽  
Significant Difference ◽  
Group A ◽  
Casein Phosphopeptide ◽  
Group B ◽  
Post Hoc ◽  
Demineralized Dentin

Abstract Objective The aim of this study was to assess the combined effect of erbium:yttrium-aluminum-garnet (Er:YAG) laser and mineralizing agents including casein phosphopeptide-amorphous calcium phosphate (CPP-ACP) and fluoride in improving the resistance of demineralized dentin at new demineralization process. Materials and Methods One hundred and twenty healthy dentin surfaces were prepared and demineralized using acidic solutions. Primary microhardness was measured (h1), and samples were randomly divided into six groups. Each group received a different protocol as follows: Group A (control group): no additional treatment, Group B: applying a fluoridated gel, Group C: applying a CPP-ACP-containing cream, Group D: irradiation of Er:YAG laser, Group E: irradiation of Er:YAG laser combined with the application of a fluoridated agent, and Group F: irradiation of Er:YAG laser combined with the application of CPP-ACP-containing cream. Microhardness values were measured afterward (h2). Then, all the groups were re-exposed to acidic solution, and microhardness was measured for the third time (h3). The microhardness data were analyzed using analysis of variance and Scheffe's post hoc test. Results Although application of mineralizing agents increased the microhardness of demineralized dentin in comparison with the control group, no significant difference was observed using two agents. Comparison of laser groups showed an increase in microhardness only after the irradiation of Er:YAG laser combined with the application of a fluoridated agent. Demineralizing process reduced the microhardness values in all the groups, but the application of a CPP-ACP agent caused the least reduction among the laser irradiated groups. Comparison of hardness changes at the beginning and end of the experiment did not show any significant differences between the groups. Conclusion Comparison of treatment modalities used in this study exhibited that fluoride had the greatest impact on dentin resistance. Laser irradiation on demineralized dentin did not increase the hardness or resistance to acidic attacks.

scholarly journals PENGARUH DOSIS EKSTRAK JAMBU BIJI (PSIDIUM GUAJAVA. L) DAN TABLET Fe TERHADAP PERUBAHAN KADAR HEMOGLOBIN PADA MENCIT (MUS MUSCULUS)

2018 ◽  
Vol 10 (3) ◽  
pp. 102-107
Author(s):  
Yusnaini Yusnaini
Keyword(s):  
Mus Musculus ◽  
Experimental Studies ◽  
Psidium Guajava ◽  
Control Group ◽  
Control Group Design ◽  
Laboratory Design ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
Post Hoc

According to the WHO 40% of maternal deaths in developing countries related to anemia in pregnancy and is most commonly caused by iron deficiency and acute bleeding, even less so the two interact. This study aims to determine the effect of doses of extracts of Guava (Psidium Guajava. L) and Tablet Fe to changes in hemoglobin levels in mice (Mus musculus). Type True Experimental studies in laboratory design nonrandomized design Pretest-Posttest Control Group Design. Samples were mice (Mus musculus) as many as 20 birds were divided into four groups with each group number as many as five tails. Group A was given a tablet Fe as much as 0.126 mg / kg / day, group B was given a tablet Fe as much as 0.126 mg / KgBW / day coupled with extracts of Guava as much as 10 mg / kg / day, group C was given tablets Fe as much as 0.126 mg / kg / day coupled with guava extract as much as 20 mg / kg / day, group D was given tablets as much as 0.126 mg Fe / KgBW / day plus guava extract as much as 30 mg / kg / day. The data collection was conducted from June 5 s / d July 20, 2015. Data were analyzed using Paired T-Test continued with Test and One Way ANOVA Post Hoc Test namely LSD test. Results showed that there was no significant difference in hemoglobin levels between the groups in which the value of P = 0634> 0.05.. Based on the results of this study concluded that there was no effect of dose of extract of guava (Psidium Guajava. L) and Tablet Fe to changes in hemoglobin levels in mice (Mus musculus), but the effect on the number of erythrocytes of mice (Mus musculus)

Clinical effect of Suvarna Bindu Prashan

2017 ◽  
Vol 2 (3) ◽  
Author(s):  
Patil Aniket ◽  
Dindore Pallavi ◽  
Arbar Aziz ◽  
Kadam Avinash ◽  
Saroch Vikas
Keyword(s):  
Physical Health ◽  
Eating Habits ◽  
Control Group ◽  
Inform Consent ◽  
Significant Difference ◽  
Group A ◽  
Group B ◽  
Immune Booster ◽  
Mental And Physical Health ◽  
Apparently Healthy

The quest for excellence in mental and physical health is not new. We find various references and formulations in Ayurvedic classics meant for promoting mental and physical health of a child. Suvarna Prashan is one of the formulations explained in age old Ayurvedic classic Kashyap Samhita. This formulation is very widely used now days as a memory and immune booster for children. But there is very little systematic documented study which can be used to evaluate the efficacy of the formulation. Suvarna Bhasma was prepared in Ayurved Rasayani Pharmacy, Pune. Madhu and Ghrita were collected from KLE Ayurveda Pharmacy, Belgaum. Suvarna Bindu Prashan was prepared in KLE Ayurved pharmacy, Belgaum. It contains Suvarna Bhasma, Ghrita and Madhu. Twenty apparently healthy male and female children with age group of three to four years were ready to sign inform consent form were selected into two groups each. Subjects in Group A received Suvarna Bindu Prashan where as Group B (Control group) did not receive any treatment. Both the groups were observed for six months. Children in Suvarna Bindu Prashan group showed significant reduction in the scores of eating habits, behavior, mood, temperament and scores of event of illness. However there was no significant difference in the score of sleeping habit. There was significant increase in IQ percentage.

scholarly journals Effects of Er:YAG Laser on Mineral Content of Sound Dentin in Primary Teeth

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Cigdem Guler ◽  
Meral Arslan Malkoc ◽  
Veli Alper Gorgen ◽  
Erhan Dilber ◽  
Mehmet Bulbul
Keyword(s):  
Surface Roughness ◽  
Mineral Content ◽  
Primary Teeth ◽  
Er:Yag Laser ◽  
Short Pulse ◽  
Pulse Mode ◽  
Emission Spectrometry ◽  
Control Group ◽  
Group A ◽  
Group B

The aim of the present study was to evaluate the mineral content of sound dentin in primary teeth prepared using an Er:YAG laser at two different power settings. Thirty-six primary second molars were used in this study. Three dentin slabs were obtained from each tooth, and the slabs were randomly divided into three groups: Group A, control; Group B, Er:YAG laser at 3.5 W, 175 mJ, and 20 Hz, short pulse mode; and Group C, Er:YAG laser at 4 W, 200 mJ, and 20 Hz, medium-short pulse mode. One dentin slab per group was used to evaluate the dentinal morphology and surface roughness values using SEM and profilometer, respectively. Mineral content in the dentin slabs were calculated by inductively coupled plasma-atomic emission spectrometry (ICP-AES). The data were analyzed by one-way analysis of variance and Tukey’s HSD tests. No significant differences in Ca, K, Mg, Na, and P levels or Ca/P ratio were found among the groups(P>0.05). SEM micrographs showed that surface irregularities increased with a higher power setting. The surface roughness after laser treatment in Group B and Group C was found to be similar, unlike Group A.

EFFECT OF YOGA ON CARDIOVASCULAR EFFICIENCY

2019 ◽  
pp. 12-16
Author(s):  
Brij Bhushan Singh ◽  
Shubi Mirja ◽  
Samiya Husain
Keyword(s):  
Statistical Technique ◽  
Step Test ◽  
Control Group ◽  
Significant Difference ◽  
Post Test ◽  
Group A ◽  
Cardio Vascular ◽  
Level Of Significance ◽  
Group B ◽  
Experimental Group

The purpose of this study was to investigate the effects of yogic practices on cardio-vascular efficiency. Material and methods: Total Forty (40) subject’s boys/girls were selected as the sample of the study through the random sampling and their age ranged between 20 to 25 years from the Department of Physical Education, Aligarh Muslim University, Aligarh. The subjects were divided into two groups comprising 20 subjects in each group, namely group “A” (the experimental group) performs yogic practices (Asanas, Pranayamas and Kriyas) and group “B” (the control group) served as control. Statistical technique: for the assessment of the cardiovascular efficiency through Harvard step test pre and post-test was conducted and t-test was applied for the analysis. Result: revealed that there exist a significant difference between group A and group B, at .05 level of significance. On the basis of the pre and post-test among experimental and control group, experimental group found better than the control group on cardiovascular efficiency and significant result were found in this study.

Resorbable Collagen Barrier Impeding the Extrusion of Obturating Material in Primary Molars Undergoing Resorption – A Randomized Clinical Trial

2021 ◽  
Vol 45 (5) ◽  
pp. 312-316
Author(s):  
Mishra Neha Sanjeev ◽  
Harsimran Kaur ◽  
Sandeep Singh Mayall ◽  
Rishika ◽  
Ramakrishna Yeluri
Keyword(s):  
Test Group ◽  
Primary Molars ◽  
Control Group ◽  
Chi Square ◽  
Significance Level ◽  
Significant Difference ◽  
Chi Square Test ◽  
Group A ◽  
Group B ◽  
And Control

Objective: To evaluate the effectiveness of placing a resorbable collagen barrier in impeding the extrusion of obturation material in primary molars undergoing resorption. Study design: All the 94 canals in 47 mandibular molars were allocated to 2 groups- Group ‘A’- 47 canals with collagen barrier (Test group) and Group ‘B’- 47 canals without collagen barrier (Control group) based on randomization protocol. Pulpectomy was performed and obturation of both test and control canals were radiographically assessed. Pearson’s chi – square test was applied to analyze the results. The significance level was predetermined at p < 0.05. Results: Among the test group, 93.6% of the canals showed no extrusion while, 6.4% showed visible extrusion of the material outside the apex. In the control group, 83% showed no extrusion whereas 17% of the canals showed visible extrusion outside the apex. But no significant difference was noted (p>0.05). Conclusion: The placement of resorbable collagen barrier in the apical third of the canal prevented the extrusion of obturating material beyond the apex in resorbing primary molars.

A Comparative Study of Epidemiology, Clinicopathologic Features and Outcome of Colorectal Cancer Patients between Ain Shams University Hospitals and Luxor International Hospital

QJM ◽  
2021 ◽  
Vol 114 (Supplement_1) ◽  
Author(s):  
Tarek Hussein Kamel ◽  
Amr Lotfy Farag ◽  
Dr/Sherif Hassanin Ahmed ◽  
Chresteen Talaat Samy Hanna
Keyword(s):  
Colorectal Cancer ◽  
Comparative Study ◽  
Disease Free Survival ◽  
University Hospital ◽  
Treatment Modalities ◽  
Clinicopathologic Features ◽  
Free Survival ◽  
Significant Difference ◽  
Group A ◽  
Group B

Abstract Background Colorectal cancer (CRC) is one of the leading causes of mortality and morbidity in the world. It is the third most common malignancy after lung & breast and the fourth leading cause of cancer-related deaths worldwide, accounting for approximately 1,400,000 new cases and about 700,000 deaths worldwide. Objectives The aim of this retrospective study is to compare the epidemiology, clinicopathologic features, different treatment modalities and outcomes regarding disease free survival (DFS), progression free survival (PFS) & overall survival (OS) of colorectal cancer disease between cases presented to Ain shams university hospital & to Luxor international hospital in 3 consecutive years. Patients and Methods The study is retrospective comparative study. Clinical oncology department in Ain Shams University Hospital and Luxor International Hospital. The data Collected from January 2013 to December 2015. This study analyzed hospital records of patients who diagnosed with colorectal cancer (CRC) and allocated into two groups: Group A: CRC patients presented to Ain-Shams University Hospital from January 2013 to December 2015, group B: CRC patients presented to Luxor International Hospital from January 2013 to December 2015. Results There was no statistically significant difference regarding age parameter in LIH when compared to ASU, but the study was consistent with higher incidence in patients who were aged more than forty- accounted about 70.5% in all CRC cases. Cases less than 40 years old, in group A were 35.2%, while in Group B were 23.5%. Even there was no statistically significant difference but it may be attributable to more westernization in Lower Egypt. Other explanation may be due to decreased low socioeconomic status and different lifestyle factors in more developing region what increase risk of colorectal cancer. Among our cases, there is no statistically significant difference regarding gender between the two hospitals. Both sexes almost were affected equally, females appeared to be at a slightly higher risk of developing CRC cancer with current prevalence 1.3:1 in ASU group, and 1.1:1 in LIH group. Conclusion The need to increase awareness about CRC in Egypt especially upper Egypt, is recommended. An awareness campaign should be performed to promote detection of CRC at its earliest and most curable stage by recognizing early symptoms and enabling early referrals for colonoscopy. Those at higher risk should be offered more intensive surveillance. Similarity of the data from different centers suggests that this is the picture of colorectal cancer typical of Egypt.

scholarly journals Correlation between angiographic transit times and neurological status on admission in patients with aneurysmal subarachnoid hemorrhage

2016 ◽  
Vol 124 (4) ◽  
pp. 1093-1099 ◽  
Author(s):  
Alexander Ivanov ◽  
Andreas Linninger ◽  
Chih-Yang Hsu ◽  
Sepideh Amin-Hanjani ◽  
Victor A. Aletich ◽  
...  
Keyword(s):  
Subarachnoid Hemorrhage ◽  
Cerebral Artery ◽  
Aneurysmal Subarachnoid Hemorrhage ◽  
Clinical Information ◽  
Control Group ◽  
Angiography Suite ◽  
Transit Times ◽  
Significant Difference ◽  
Group A ◽  
Group B

OBJECT The use of digital subtraction angiography (DSA) for semiquantitative cerebral blood flow(CBF) assessment is a new technique. The aim of this study was to determine whether patients with aneurysmal subarachnoid hemorrhage (aSAH) with higher Hunt and Hess grades also had higher angiographic contrast transit times (TTs) than patients with lower grades. METHODS A cohort of 30 patients with aSAH and 10 patients without aSAH was included. Relevant clinical information was collected. A method to measure DSA TTs by color-coding reconstructions from DSA contrast-intensity images was applied. Regions of interest (ROIs) were chosen over major cerebral vessels. The estimated TTs included time-to-peak from 0% to 100% (TTP0–100), TTP from 25% to 100% (TTP25–100), and TT from 100% to 10% (TT100–10) contrast intensities. Statistical analysis was used to compare TTs between Group A (Hunt and Hess Grade I-II), Group B (Hunt and Hess Grade III-IV), and the control group. The correlation coefficient was calculated between different ROIs in aSAH groups. RESULTS There was no difference in demographic factors between Group A (n = 10), Group B (n = 20), and the control group (n = 10). There was a strong correlation in all TTs between ROIs in the middle cerebral artery (M1, M2) and anterior cerebral artery (A1, A2). There was a statistically significant difference between Groups A and B in all TT parameters for ROIs. TT100–10 values in the control group were significantly lower than the values in Group B. CONCLUSIONS The DSA TTs showed significant correlation with Hunt and Hess grades. TT delays appear to be independent of increased intracranial pressure and may be an indicator of decreased CBF in patients with a higher Hunt and Hess grade. This method may serve as an indirect technique to assess relative CBF in the angiography suite.

scholarly journals Laser Speckle Imaging of Sensitized Acupoints

2018 ◽  
Vol 2018 ◽  
pp. 1-9 ◽  
Author(s):  
Ning Ding ◽  
Jing Jiang ◽  
Xiaoxiao Liu ◽  
Yiyuan Xu ◽  
Jiatong Hu ◽  
...  
Keyword(s):  
Blood Perfusion ◽  
Laser Speckle ◽  
Control Group ◽  
Functional Changes ◽  
Pathological Conditions ◽  
Sd Rats ◽  
Significant Difference ◽  
Group A ◽  
Severity Of The Disease ◽  
Group B

Acupoints microcirculatory dynamics vary depending on the body’s health status. However, the functional changes observed during acupoint sensitization, that is, the disease-induced change from a “silenced” to an “activated” status, remain elusive. In this study, the microcirculatory changes at acupoints during sensitization were characterized. Thirty SD rats were randomly divided into five groups: normal control group (N), sham osteoarthritis group (S), light osteoarthritis group (A), mild osteoarthritis group (B), and heavy osteoarthritis group (C). The obtained results showed that the blood perfusion levels at the acupoints Yanglingquan (GB34), Zusanli (ST36), and Heding (EX-LE2) in groups A, B, and C were higher than those in groups N and S on days 14, 21, and 28 (p < 0.01 or p < 0.05). A significant difference in the blood perfusion was also observed at the acupoint Weizhong (BL40) in groups B and C on days 21 and 28 (p < 0.01). In addition, remarkable differences in the level of blood perfusion at the GB34, ST36, and EX-LE2 acupoints were observed on day 28 (p < 0.01 or p < 0.05) among groups A, B, and C. No marked differences in blood perfusion levels were observed at the nonacupoint site among all groups. In conclusion, acupoint sensitization is associated with an increase in the level of local blood perfusion at specific acupoints, and this increase is positively correlated with the severity of the disease. The functional changes in microcirculation at acupoints during sensitization reflect the different physiological and pathological conditions imposed by the disease.

scholarly journals Surgery for primary intracerebral haemorrhage: is it safe and effective?

2013 ◽  
Vol 38 (3) ◽  
pp. 74-78
Author(s):  
MMH Talukder ◽  
KMT Islam ◽  
M Hossain ◽  
MU Jahan ◽  
F Mahmood ◽  
...  
Keyword(s):  
Intracerebral Haemorrhage ◽  
Glasgow Outcome Scale ◽  
Control Group ◽  
Intracerebral Haematoma ◽  
College Hospital ◽  
Conservative Group ◽  
Best Medical Treatment ◽  
Significant Difference ◽  
Group A ◽  
Group B

This prospective study was conducted to compare the outcome between medical and surgical treatment of primary intracerebral haemorrhage at the department of Neurosurgery, Dhaka Medical College Hospital from January 2006 to October 2007. All patients with primary intracerebral haematoma with Glasgow Coma Scale (GCS) 5-15 (on admission) and heamatoma volume 30 cc or above admitted at Neurosurgery department managed conservatively or surgically were included in this study. Total 60 patients were selected, of them 30 patients managed conservatively and 30 patients managed surgically. Conservatively managed patients regarded as control group (Group-A) and surgically managed patients regarded as experimental group (Group-B). Patients or attendants refused to operate were included in the conservative group. All the selected patients were evaluated on the basis of detailed history, clinical examination (general and neurological examination) and CT scan findings. Outcome was evaluated in term of Glasgow Outcome Scale (GOS). Best medical treatment was given for conservative group and operations were done for surgical group and followed up after surgery till discharge by observing GCS and GOS at discharge. Number of death were 15 (50%) patients in group- A and 13 (43%) patients in group-B. There was no significant difference in mortality rate between two groups but outcome was relatively better in group-B. According to Glasgow Outcome Scale, dependency in group-A and group-B was 26.6% and 23.4% respectively. So dependency were more in group-A. But there was no significant difference statistically. Seven (23.4%) patients were independent in group-A but 10(43.3%) patients were independent in group-B. However in relative terms of outcome of group-B was better than that of group-A. In our study we found no statistically significant difference in outcome between medical and surgical management of primary intracerebral haemorrhage. DOI: http://dx.doi.org/10.3329/bmrcb.v38i3.14328 Bangladesh Med Res Counc Bull 2012; 38(3): 74-78 (December)

scholarly journals Effect of Delayed Light-Curing Through a Zirconia Disc on Microhardness and Fracture Toughness of Two Types of Dual-Cure Cement

2019 ◽  
Author(s):  
Pouran Samimi ◽  
Sara Kaveh ◽  
Maryam Khoroushi
Keyword(s):  
Fracture Toughness ◽  
Delay Group ◽  
Fracture Toughness Test ◽  
Irradiation Group ◽  
Significant Difference ◽  
Group A ◽  
Light Curing ◽  
Group B ◽  
Post Hoc ◽  
Group D

Objectives: Photopolymerization immediately sets dual-cure cements and prevents the continuation of chemical polymerization. Delayed light-curing allows the chemical process to continue up to the point before starting irradiation; however, there is a controversy in this respect. The present study evaluates the effect of delayed light-curing through a zirconia disc on the microhardness and fracture toughness (KIC) of two types of dual-cure cement. Materials and Methods: Samples measuring 25×5×3 mm3 were prepared for fracture toughness test, and discs measuring 5 mm in diameter and 3 mm in thickness were prepared for microhardness test using Bifix and BisCem cements. Light-curing protocols were as follows: immediate light-curing (group A), a 2-minute delay (group B), a 5-minute delay (group C), direct irradiation (group D), and no irradiation (group E). In groups A to C, light-curing was carried out through a zirconia disc. Data were analyzed by two-way and one-way analysis of variance (ANOVA), post-hoc Tukey's test, and Kruskal-Wallis test at 95% confidence interval. Results: There was a significant difference in the microhardness of the cements (P=0.00). Delayed light-curing had no effect on microhardness (P=0.080). The microhardness of BisCem in group E was significantly lower than that in group D (P=0.015). The fracture toughness of Bifix in groups B and C was significantly different than that in group E and BisCem groups. Conclusions: Under the limitations of our study, delayed light-curing had different effects on microhardness and fracture toughness. Differences in light-curing protocols resulted in different effects based on the cement type. Light-curing is recommended to achieve optimal mechanical properties.

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