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Introduction: This study aimed to compare the microleakage of an adhesive fissure sealant (AFS), a flowable composite resin (FC), and a resin-modified glass ionomer (RMGI) in permanent teeth. Methods: This in vitro, experimental study was conducted on 45 extracted posterior teeth with sound fissures. The teeth were randomly divided into 3 groups (n=15). The occlusal fissures were sealed with Beautisealant AFS without etching and bonding in group 1, with Beautifil FC after 37% phosphoric acid etching in group 2, and with Fuji II LC RMGI in group 3. The teeth underwent 500 thermal cycles (5-55°C), and their apices were sealed with wax. They were then immersed in 2% methylene blue for 24 hours. Next, the teeth were sectioned buccolingually and inspected under a stereomicroscope to measure the dye penetration depth as an indicator of microleakage. Data were analyzed by ANOVA, Chi-square test, and Scheffe test (alpha=0.05). The study was approved by the ethics committee of Hamadan University of Medical Sciences (IR.UMSHA.REC.1399.728). Results: The microleakage score of RMGI was significantly higher than that of AFS and FC (P<0.05), while the microleakage scores of FC and AFS were not significantly different (P=0.330). Conclusions: The AFS showed a sealing ability comparable to that of FC, and can be used as an alternative to FC due to its fewer application steps. [ABSTRACT FROM AUTHOR]

Background & Aims Caring for a patient undergoing hemodialysis is a stressful experience that causes a heavy care burden. With the outbreak of COVID-19, family caregivers of these patients had increased worry about the risk of infection in the dialysis centers. This fear can make their care burden heavier. This study aims to investigate the impact of coping skills training on the care burden experienced by family caregivers of patients undergoing hemodialysis. Materials & Methods This quasi-experimental study was conducted in 2020 on 60 family caregivers of patients undergoing hemodialysis at the Comprehensive Treatment Center for Special Diseases in Birjand, Iran. Participants were randomly assigned to intervention and control groups. The intervention group received coping skills training in six sessions. All participants completed the Zarit burden interview before, immediately after, and one month after the intervention. The data were analyzed in SPSSsoftware, version 19. Results The two groups were homogeneous regarding demographic information (P>0.05). Both groups had a moderate to severe care burden before the intervention. A significant difference was reported in the care burden score of the intervention group after training (P<0.001). Conclusion Coping skills training can reduce the care burden of the family caregivers of patients undergoing hemodialysis. Therefore, coping skills training can be used by nursing managers to reduce the care burden of family caregivers of patients with hemodialysis. [ABSTRACT FROM AUTHOR]

Background. Workplace violence in the healthcare system has become an important policymaking issue in recent years and is considered one of the most complex issues for the governmental system. Due to the lack of a similar study in Golestan province, this study was conducted to determine the level of exposure to workplace violence against nurses and the factors related to it. Methods. This cross-sectional study was conducted in hospitals affiliated with Golestan University of Medical Sciences in 2021 Where 293 nurses were included after random stratified sampling. The data collection tool was demographic and occupational variables as well as the workplace violence questionnaire and data analysis was done by descriptive statistics methods and Mann-Whitney, Spearman, Kruskal-Wallis, and Chi-square tests in SPSS-23 software at a significance level of 0.05. Results. The average age of the nurses participating in the study was 33.93 ± 7.16 years and their average work experience was 9.82 ± 6.32 years. Among the subjects, 82.6% were women and the rest were men. The prevalence of workplace violence was 86% in one year. Mental and physical violence with a frequency of 79.5% and 42.7%, respectively, had the highest occurrences. Also, 57. 7% did not report any act of violence. In front of these acts of violence, the most reactions were inviting the attacker to calm down (42.3%), discussing the issue with colleagues (23.5%), and not taking any specific action (19.5%). There was a significant relationship between physical violence and gender (P-value=0.024) and department of hospital (P-value=0.003). Sexual violence was also significantly related to department of hospital (P-value=0.046). Also, there was a significant relationship between racial violence and gender (P-value=0.001), department of hospital (P-value=0.028), and work shift (P-value=0.005). Conclusion. According to the results, the prevalence of workplace violence was generally high in one year, but most of the nurses did not report any act of violence. Therefore, medical policymakers and hospital managers should consider improving nurses' communication skills, and security measures, training staff on anger management, and reducing nurses' workload. [ABSTRACT FROM AUTHOR]

Background and Aim Fibromyalgia syndrome is a chronic disease that causes widespread musculoskeletal pain. It primarily affects women and negatively impacts many aspects of a person’s psychological and social life. This study aimed to compare the effectiveness of cognitive therapy based on mindfulness and compassion therapy on automatic negative thoughts, psychological symptoms, pain intensity, and quality of life in patients with fibromyalgia syndrome. Methods & Materials This research is a quasi-experimental study with a pre-test-post-test design with two experimental and one control group. The statistical study population consisted of all individuals with fibromyalgia syndrome referred to Mehregan Pain Clinic in Mirdamad (District 3), Seyed Khandan Clinic (District 4), and Taleghani Hospital Pain Clinic (District 1) in Tehran City, Iran. Of them, 30 patients were randomly selected and divided into three groups of experimental 1, experimental 2, and control; each group will include 10 people. The instruments used in this study included the World Health Organization quality of life questionnaire (WHOQOL BREF), pain intensity questionnaire (PIS), psychological symptoms questionnaire (Anxiety, Stress and Depression [DASS]), and automatic negative thoughts (QNS). Ethical Considerations This study was approved by the Research Ethics Committee of Arak Branch, Islamic Azad University (Code: IR.IAU.ARAK.REC.1400.005). Results The analysis of covariance showed the effectiveness of both cognitive therapies based on mindfulness and compassion therapy on four variables of pain intensity, psychological symptoms, automatic negative thoughts, and quality of life (P<0.05). Comparing the two intervention methods showed that both therapies had almost the same effect on pain intensity, psychological symptoms, and automatic negative thoughts (P<0.05) but the effectiveness of mindfulness intervention on the quality of life was significantly higher than compassion intervention (P<0.05). Conclusion The results indicate that cognitive therapy based on mindfulness and compassion therapy are suitable for people with fibromyalgia under appropriate treatment. [ABSTRACT FROM AUTHOR]

Introduction: Control on children`s dental anxiety is one of the important & effective factor predicting treatment success. Personality factors & parenting style can be very effective in children`s dental anxiety. The aim of this study was to determine the relationship between parenting styles and child`s dental anxiety and behavior in dental setting. Materials & Methods: This is a descriptive study done a sample of 126 children aged 4-6 years old and their parents participated in this study in the year 2020. Sampling method was nonrandom and simple. MCDASf questionnaire was used to measure children`s dental anxiety and Bumrind questionnaire was used for scores of parenting styles. Data were analyzed by Pearson Correlation, Spearman Correlation, and chi-square tests. Results: A significant relationship between the score of authoritative parenting style in parents and pediatric dental anxiety (p value = 0.803, r = 0.022). However, a significant inverse relationship was observed between the score of authoritarian parenting style in parents and children's dental anxiety (p value < 0.001, r = -0.307). Also, a direct and significant relationship was observed between the score of permissive parenting style in parents and children's dental anxiety (p value < 0.001, r = 0.318). Conclusion: Dental anxiety and behavior in children is associated with parenting style. [ABSTRACT FROM AUTHOR]

Introduction: In orthodontic treatment a proper bond is essential between the enamel and the bracket. Evaluation of the efficacy of different adhesives for bonding orthodontic brackets to enamel has yielded different results. This study aimed to compare the shear bond strength and adhesive remnant index (ARI) of metal brackets bonded by Transbond XT, Ortho-Force and Resilience composites. Materials & Methods: Sixty extracted intact upper maxillary first premolars were selected for the purpose of this in vitro study. The teeth were randomly divided into three groups (n = 20). The teeth were bonded with were bonded with Transbond XT, Resilience and Ortho-Force composites in groups 1, 2 and 3, respectively. After 24 hours, shear bond strength test was conducted at a crosshead speed of 0.05 mm/min. ARI scores were evaluated under a stereomicroscope. The results of shear bond strength test were analyzed with ANOVA and Tukey tests. ARI results were analyzed with chi-squared test (α = 0.05). Results: Shear bond strengths were significantly different between the three groups (p value < 0.001). Transbond XT composite exhibited the highest bond strength (15.26 MP) and Ortho-Force composite had the lowest bond strength (11.96 MP). There were no statistically significant differences in ARI between the three groups p value = 0.561). Conclusion: Although the mean shear bond strength of Ortho-Force composite was less than the two other composites, it is still clinically acceptable. [ABSTRACT FROM AUTHOR]

Introduction: Periapical diseases are the end result of untreated pulpitis or failure of root canal therapy. The aim of this study was to evaluate and compare the prevalence of different periapical lesions in terms of demographic variables in patients referring to the Department of Oral Pathology of Isfahan Dental School in three different time periods from 1988 to 2015. Materials & Methods: In this retrospective cross-sectional study, biopsy samples available in the archives of Oral Pathology Department of Isfahan Dental School from1988 to 2015 were studied. Periapical (PA) lesions were evaluated and compared in terms of age, sex, type, etiology and location. Data were analyzed with SPSS. After data collection, data were analyzed with chi-squared test, Fisher’s exact test, ANOVA and Tukey test (α = 0.05). Results: Of 10686 oral biopsies, 582 (5.44%) were PA lesions. Of 582 PA lesions, 71.1% were dental granulomas and 15.3% were radicular cysts and the other cases were other lesions with lower prevalence rates; 41.4% of the lesions belonged to males and 58.1% to females. The most common frequency was detected in the 21‒30-year age group. The most common site of involvement was the mandibular molars with 48.3%, maxillary incisors with 32.5% and maxillary molars with 21.4%, respectively. Distribution frequencies of PA lesions were 11%, 23.9% and 65.1% in the first, second and third periods, respectively. Conclusion: The results showed that the prevalence of PA lesions has increased significantly in recent years. Increased incidence of periapical lesions secondary to root canal therapy (RCT) in the second and third periods in comparison with the first period is an indication of inadequate RCT treatment in patients. [ABSTRACT FROM AUTHOR]

Introduction: Oral health literacy (OHL) is one of the most important determinants of oral health. Given the importance of the subject in program planning for promotion of the oral health of the community, this study evaluated OHL among citizens in Isfahan, Iran. Materials & Methods: This cross-sectional study was conducted on 758 adults living in Isfahan, who were selected by simple random sampling technique. Data were collected with the use of a questionnaire which consisted of 17 questions on OHL in 4 sections of reading comprehension, perception of numbers, listening and decision making. There were 3 questions on oral health behaviors; a question on potential sources for oral health information, the self-assessment of oral health of participants as well as age, sex and education. The citizens were categorized into three groups with inadequate OHL (0‒9), borderline (10‒11) and adequate OHL (12‒17). Ttest, ANOVA, LSD tests, chi-squared, Spearman’s coefficient and multivariate linear regression were applied for statistical analyses verbal consents were achieved. Results: Of participants, 53% had adequate OHL. The mean (SD) of OHL was 11.1 (4.3) of a total of 17. Woman, older adults and those with higher education scored higher for OHL (p value < 0.05). The score of OHL was higher among those who reported favorable oral health behaviors (p value = 0.006). In addition, participants who believed they had a poor oral health status had low OHL scores compared to the other two groups. Dentists, radio and television, and the internet were the main sources of oral health information of citizens in Isfahan. Conclusion: The study showed insufficient OHL among Isfahan citizens. Health policy maker should have prepare oral health programs to promote OHL in the community. [ABSTRACT FROM AUTHOR]

Introduction: Cerebrovascular disease is the second leading cause of death worldwide. Data on epidemiology of stroke, its pattern and risk factors, are scarce. Seasonal variation in the incidence of stroke and role of meteorological factors in its occurrence, have been investigated in several studies. These studies show that there were different patterns in stroke incidence across different areas. Objective: To investigate the seasonal pattern of stroke incidence and the association between daily stroke occurrences and meteorological factors among the patients admitted to the Poursina Hospital, northern Iran, in (2012). Materials and Methods: This cross sectional study was conducted in the Poursina Hospital in Rasht. All the patients with acute onset of neurological symptoms during (2012), after performing imaging studies and confirmation of the diagnosis of stroke, were enrolled. Age, sex, history of diabetes and hypertension, and date of stroke occurrence were recorded for all patients. The number of stroke episodes, temperature and humidity were recorded on all days of the year. Distribution of stroke cases among seasons according to study variables, was analyzed using chi-square test. To compare the average number of strokes per day among different seasons, kruskal-wallis test was used. The relationship between the number of strokes per day and meteorological variables was analyzed using Spearman's correlation coefficient. Results: During the study period, 869 patients with diagnosis of stroke were admitted. Significant seasonal differences in the mean of ischemic stroke occurrence per day and mean of intracerebral hemorrhage occurrence per day, with peak rates in autumn, were observed. In the study of meteorological variables based on multiple linear regression with stepwise method, minimum temperature was inverse linear predictor of both overall stroke occurrence per day and ischemic stroke occurrence per day. For intracerebral hemorrhage occurrence per day, maximum temperature was inverse linear predictor and maximum humidity was direct linear predictor. Conclusion: This study suggests a seasonal pattern in the incidence of stroke and a possible role of meteorological factors in the incidence of stroke in this area. Attention to this seasonal pattern can be useful for medical centers to provide better services to their patients. [ABSTRACT FROM AUTHOR]

Introduction: Critical Thinking (CT) is an essential component of clinical decision-making and professional competence. Personal characteristics of the students are one of the factors influencing their critical thinking development. The aim of this study was to determine the correlation between Critical Thinking Disposition (CTD) and self-esteem among pre-clinical and clinical medical students in Kermanshah University of Medical Sciences. Methods: In this descriptive-analytic study, 225 pre-clinical and clinical medical students were randomly selected through stratified sampling method in Kermanshah University of Medical Sciences in 2011. The data gathering tool included California Critical Thinking Disposition Inventory (CCTDI), and Cooper-Smith self-esteem inventory. The results were analyzed using descriptive statistics, Spearman correlation coefficient, Chi-Square, and independent sample t-test. Results: Results showed the students' mean scores in critical thinking disposition was 212.99±28.87(out of 420). Among all, CTD scores of 120 students (53.3%) were in ambivalence range, 102 (45.3%) were strong opposition, and 3(1.4%) positive inclination. There was a significantly positive correlation between CTD and self-esteem scores (r= 0.429, P=0.001). Also, there was a significant correlation between being in high or low self-esteem groups and CTD scores (P=0.0001, χ2=25.9). Conclusion: Students with higher self-esteem had a better CTD scores compared with those who had lower self-esteem and there was a direct and positive correlation between these two variables. Thus, faculty members should impart adequate self-esteem to their students for proper clinical judgment and decision making in different clinical circumstances. [ABSTRACT FROM AUTHOR]