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Showing 8 results for Asgari
Immunohistochemical evaluation of estrogen and progesterone receptors in peripheral and central giant cell granuloma of the jaws
Sm. Razavi , A. Talebi , B. Movahedian Attar , I. Asgari ,
Volume 19, Issue 2 (4 2006)
Abstract

Background and Aim: Giant cell granuloma is a relatively common benign proliferative lesion of the oral cavity. This lesion has a marked gender predilection with more prevalence in females and tendency to rapid growth and recurrence during pregnancy. The aim of this study was the evaluation of specific receptors of sex hormones in giant cell granuloma.

Materials and Methods: In this cross-sectional study, twenty five cases of formalin fixed paraffin embedded giant cell granulomas were retrieved from the oral pathology archive of dental school Isfahan University of Medical Sciences. Also twenty five normal oral mucosa biopsies resected during different surgical procedures were prepared as control group. Cases were immunohistochemically stained for estrogen and progesterone receptors using the biotin-streptavidine method. Data were analyzed by SPSS package.

Results: Staining for ER/PR markers were negative for the mononuclear stromal cells and multinucleated giant cells in all cases. The epithelial cells and connective tissue stromal cells of the control group were also negative for these receptors.

Conclusion: Based on the results of this study, immunostaining for ER/PR was negative in all cases. These findings suggest that in most cases development and growth of this lesion is not directly related to these hormones. However further studies with more sensitive techniques are recommended.


A literature review of the relationship between breastfeeding and early childhood caries
Narjes Amiri Tehranizadeh, Nahid Asgarizadeh, Vajihe Kamel,
Volume 25, Issue 2 (9 2012)
Abstract

Background and Aims: Improper feeding is one of the most important etiologic factors in early childhood caries (ECC). In some clinical trials, breast feeding (BF) is mentioned as a causing factor in ECC. Results in this topic are different or even controversial. It is vital that all general advices given out are consistent with general health education messages. The aim of this study was to conduct a systematic review on the relationship between breast feeding and early childhood caries. 

Materials and Methods: Articles, guidelines, related books, and specific databases such as SID, PubMed, Scirus, Elsevier, American Association of Pediatric Dentistry (AAPD), American Association of Pediatrics (AAP) and American Dental Association (ADA) were searched for related topics cited since 1990. Early childhood caries definition, breast feeding and other variables such as sample size, study location and study design were analyzed.

Results: According to data analysis, there was a lack of methodological consistency and inconsistent definitions of ECC and BF in the literature making it difficult to draw conclusions. Results about relationship between prolonged BF and ECC were inconclusive. There was a positive relationship between nocturnal BF and ECC. A history of BF did not have any effect on the caries incidence.

Conclusion: Because of the role of breast feeding in children's health, it is important to inform the parents about the possibility of dental caries due to nocturnal breast feeding.


Evaluation of the patient-based indices for orthodontic need assessment in the 13 to 18 year-old adolescents in Isfahan
Imaneh Asgari, Arezo Ebn Ahmady, Mohammad Hossein Khoshnevisan, Faezeh Eslamipour,
Volume 25, Issue 2 (9 2012)
Abstract

Background and Aims: Normative need assessments should be substituted or integrated by patient-based outcome measures regarding their shortages in health-oriented approach . This study aimed to assess and compare the ability of  an index of oral health-related quality of life measured by Child Oral Health Impact Profile (COHIP) questionnaire and the Aesthetic Component of Index of Orthodontic Treatment Need (AC-IOTN) to identify the normative need to orthodontic treatment using Dental Health Component-IOTN in a sample of the Iranian adolescents.

Materials and Methods: Target population of this cross-sectional analytic study was 597 of the 13 to 18 year-old schoolchildren enrolled in middle and high schools of the city of Isfahan, Iran. They completed the COHIP questionnaire and then were examined by two calibrated trained dentists (agreement coefficient:0.9) to record the DHC grading. The students scored their AC in according to the images of the scale. The association between subjective indicators and clinically defined need were evaluated by the correlation analysis and the statistics for the diagnostic validity of tests.

Results: Of 568 examined students, 16.7% and 2.1% had definite need according to DHC and AC criteria, respectively. 10% of orthodontic patients had perceived distinct impact on their quality of life. The significant association (P=0.001) between the severity of malocclusion and quality of life was at moderate level by AC (R=0.37), but it was not convincing enough by DHC (R=0.16). The specificity of AC to detect the healthy ones showed to be excellent but its low sensitivity disabled the recognition of patients, precisely.

Conclusion: The considered patient-based indices did not meet the competencies to define the orthodontic need in the adolescents, but it could be employed to identify the persons with impaired quality of life and it would probably benefit  the process of prioritization.


Comparison effect of artificial tooth type and cyclic loading on the bond strength to auto-polymerized acrylic denture base resins
Fateme Nematollahi, Nasim Azizi, Sima Shahabi, Loghman Ghahremani, Zohre Asgari, Hossein Bagheri ,
Volume 26, Issue 2 (5-2013)
Abstract

Background and Aims: Failure of bonding between artificial teeth and denture base material is a considerable problem for patients who wear dentures. According to the different impact of artificial teeth and different information about resistance force of mastication and also with deficiency in researchs, this study was designed to compare the bond strength of composite and acrylic artificial teeth to auto-polymerized denture base resins with and without cyclic loading.

Materials and Methods: In this experimental and in vitro study, an acrylic resin auto-polymerized (Rapid Repair, Dentsply) and four artificial teeth (Acrylic Marjan new, Composite Glamour teeth and Ivoclar acrylic and composite teeth) were used. Therefore, 8 groups of 10 specimens each were evaluated. All specimens were thermocycled for 5000 cycles, in water baths between 5 and 55 ◦ C. Half the specimens in each group were treated with cyclic loading at 50N for 14, 400 cycles at 1.2 Hz. The shear bond strengths were measured using a Universal Testing Machine. Data were analyzed using Two-way ANOVA test.

Results: Statistical analysis demonstrated no significant effect of cyclic loading on the shear bond strength, but the type of artificial tooth affected the shear bond strength (P=0.006). Also, the interaction between Cyclic loading and the type of artificial tooth showed no significant difference (P=0.98). Tukey test showed that acrylic teeth (Ivoclar) had statistically higher bond strength values than that of other teeth (PGlamour=0.02), (PComposite ivoclar=0.01) and (PMarjan new=0.02).

Conclusion: Within the limitation of this study, the predominant type of fracture in all groups was cohesive, therefore the bond strength was adequate in all teeth and the type of artificial tooth may influence the bond strength of denture teeth to denture base resin. Cyclic loading had no significant effect on the bond strength of denture teeth to the auto-polymerized acrylic resin.


A comparison of the costs of in-office fluoride therapy versus salt fluoridation using
Reza Khani Jazani, Shabnam Seyedzadeh Sabounchi, Zahra Ghorbani, Hedieh Toutouni, Imaneh Asgari,
Volume 26, Issue 4 (1-2014)
Abstract

  Background and Aims: Application of fluoride products is known as one of the most successful interventions to prevent dental caries. This study aimed to compare the costs of in-office fluoride therapy versus salt fluoridation in Iranian population.

  Materials and Methods: In this study, the costs relating to the use of in-office fluoride therapy were analyzed using Activity Based Costing during 2011 from two perspectives. From the perspective of service provider, direct medical costs and indirect costs and from the view of service recipient, three parts: direct medical and non-medical costs and indirect costs, were considered. Costing for public consumption of salt fluoridation was estimated based on salt processing costs, including purchase, installation, monitoring, maintenance and repair of machinery, equipment, personnel expenses and cost of raw materials, used in this study.

  Results: Costs relating to performing a single in-office fluoride therapy was estimated to be 245,032 Rials from the perspective of service providers, and 239,600 Rials from the patient view. Estimated total cost to produce fluoridated salt for a unit of 10 million populations, was calculated to be 35 billion and 940 million Rials or 3, 594 Rials per person per year.

  Conclusion: It was concluded that per-capita costs of community based salt fluoridation was far less than in-office fluoride therapy. Salt fluoridation could be advised to be an affordable way to prevent dental caries in Iranian population.


The association between caries in primary teeth and permanent molars' health in 9 years old children
Imaneh Asgari, Neda Ghanea,
Volume 30, Issue 2 (8-2017)
Abstract

Background and Aims: First molar has an important role at individual’s dental health. Among the known risk factors, the experience of previous caries is of the best predictors for future caries. The aim of this study was to examine the association of primary teeth caries and other risk factors with the incidence of permanent teeth caries by considering the caries extent and severity.
Materials and Methods: This case-control study was done on 150 students from second and third grade with 9 years old. Cases included children with at least one carious permanent molar. Caries-free students who were matched based on the gender and mother education was considered as control group. Examination was done on dental unit under the unit light with blunt explorer and mirror for visual assessment. DMFT, dmft and caries severity (D1-D3) were recorded based on WHO standards. Data were calculated using SPSS18, Correlation, Chi Square Analysis, Odds ratio and Logistic regression.
Results: Linear correlation between dmft in primary teeth and DMFT in permanent molars was obtained with r:0.34 (P<0.001). Decay in permanent molars in students with active caries in primary molars was 3.3 times more probable than others. In regression model, the other risk factors such as cariogenic diet, mother`s education, brushing with toothpaste, flossing, using flouride, and regular dental visiting were not significant (P>0.05).
Conclusion: Caries-free primary teeth predicts permanent teeth without decay with a high possibility. It could be helpful in caries risk assessments.
 

Assessment of belief and attitude about community-based dental education among senior students in Isfahan dental school
Imaneh Asgari, Faezeh Aghababaei,
Volume 33, Issue 3 (10-2020)
Abstract
Background and Aims: Regarding the need for social accountability in dental education, community-based dental courses has been established to improve the oral health of the community and compensate the shortcomings of the health system. Due to the importance of evaluation, the aim of this study was to determine the dental students’ attitudes and believes in the last year of their study towards the community-based dental education.
Materials and Methods: This cross-sectional study was performed on 159 dental students in the sixth year (October and February, 2018) of Isfahan dental school by census. These students took the relevant questionnaire, which was developed by researchers in three sections of “attitudes toward field activities”, “lessons and experiences of field activities during dentistry training” and “barriers and problems of field activities”. Its content and face validity was confirmed. They completed it on their own and after collecting information and descriptive analyzes, the relationship between the gender and entry group with attitude scores was analyzed by Mann-Whitney U test.
Results: Out of a total of 102 questionnaires which were answered (response rate of 64%), half of the students believed in the need to provide dental services in the form of mobile/outreach services for the community. 90% of the students agreed with the combination of field education with routine education in the dental schools. They also considered these services as an opportunity to use their experiences and knowledge to promote oral health in the community. 84% of them believed that their self confidence improved while providing services outside the faculty. In many of the propositions in the field of attitude to provide service in the field, a significant percentage (50 to 60%) did not have an opinion.
Conclusion: There was a good and positive aspects in many areas of attitude toward providing services in social fields as well as attitude towards the lessons learned from community-based dental education. However, we should consider the attitude-emotional aspects of educational objectives in the community-based courses in dental schools.

Evaluation of oral health education program on knowledge, attitude and practice among Isfahan primary school’s teachers in 2019
Bita Heydarzadeh, Bahareh Tahani, Imaneh Asgari,
Volume 34, Issue 0 (5-2021)
Abstract
Background and Aims: School teachers have key role in providing the basic health information for their students, and their knowledge, attitude, and practice affect children's oral health through developing of the healthy behaviors. The goal of this study was to evaluate the effectiveness of an oral health education program for primary school teachers on their knowledge, attitude, and practice fields in the framework of oral health promoting schools.
Materials and Methods: This quasi-experimental pre-post study was conducted among five oral health promoting schools in Isfahan city in 2019. A validated and reliable questionnaire including four sections of demographic data, knowledge, attitude, and practice was applied for data collection. The questionnaire contained 24 knowledge, 9 attitudes, and 5 practice questions. It was distributed among 63 enrolled teachers at base line and two months later after two educational-emotional workshops. Before and after data were analyzed by SPSS21 (α=0.05) by related samples Wilcoxon signed rank test and background variables by Kruskall-wallis test.
Results: After the educational intervention, their knowledge score increased significantly from 14.1±3.8 to 18.5±3.7 (P<0.001). About 34% of teachers had a high level of knowledge proficiency at the beginning of the study which eventually rose to 76%. Teachers’ attitude decreased significantly from 34.6±5 to 31.4±4.6 (P<0.001). At the beginning of the study, 89% of them had a positive attitude towards oral health programs which decreased to 84% at the end of the study. In the performance part, 63.5% of the teachers paid attention to the fluoride in their toothpaste which reached 87.3% after the workshop and the teachers' performance score increased from 3.07 to 3.39 after the intervention (P<0.012).
Conclusion: The package of educational intervention for teachers in oral health-promoting schools improved the level of knowledge and practice, but slightly reduced the level of attitude. However, due to the importance of changing attitudes in teachers and the existence of structural and programmatic barriers to integrate the health issues into school education, other models need to be evaluated and compared.

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