مجله دانشکده دندان پزشکی اصفهان
سال نوزدهم شماره 4 (پیاپی 85، زمستان 1402)

The physiological changes in the mother's body during pregnancy make this group more sensitive to oral and dental diseases, which can have important effects on the health of the mother and the child. To improve the oral and dental health of the mother and the health of the baby, dental care before pregnancy and during pregnancy seems necessary. The purpose of this study was to determine the level of oral health literacy in midwifery experts working in Isfahan health centers.

This research is descriptive and cross-sectional and 110 questionnaires answered by midwifery experts were selected for review in this study. The questionnaire used in this study includes two demographic questions in the field of age and work experience of midwifery experts and 20 questions about measuring oral health literacy. The data were analyzed with chi-square and Fisher's exact test (α = 0.05).

No relationship was observed between oral health behavioral habits and health literacy level in midwifery experts (p value = 0.449). There was no significant relationship between the oral health literacy score of midwifery experts with age (p value = -0.338, r = 0.693) and work experience (p value = -0.095, r = 0.325).

According to this study, it can be concluded that the oral health literacy of midwifery experts is sufficient, but the need for more training to increase the updating of information of midwives in Isfahan is felt.

The aim of this study was to investigate the effect of two types of diode lasers with wavelengths 980 nm and 810 nm and Er: YAG laser on the level of surface roughness of Sandblasted, large grit, acid-etched (SLA) titanium discs.

In this in vitro experimental study, in the 2017 - 2018 years at the research center of Professor Tarabinejad and the central laboratory of Isfahan University,17 SLA titanium discs with a diameter of 2.5 and a height of 2 mm were used. The samples were divided into three groups of five for three lasers and one group of two as the control group. The first group was irradiated with Er: YAG laser, the second group with diode laser 810 nm, and the third group with diode laser 980 nm; and no intervention was done for the control group. The surface roughness was then investigated using an SPM microscope and Ra and Rq parameters. The obtained data were compared using one analysis of variance (ANOVA) and Tukey's post-hoc test. The significance level was set at α= 0.05.

Analysis of the obtained data showed that there was no statistically significant difference in the mean values of Ra and Rq parameters among four groups.

Irradiation of diode lasers 810 and 980 and also Er: YAG, decontaminated the SLA titanium disc surfaces without damage. However, additional clinical trials will be needed to verify the results of the present study.

To achieve an optimal aesthetic in the maxillary anterior teeth, the ratio of width to length of these teeth is very important. One of the practical proportions for measuring the dimensions of these teeth is the Golden Standard. This study aims to evaluate the prevalence of Golden Standard in the maxillary anterior teeth and examine symmetry on both sides and its relationship with gender.

This cross-sectional (descriptive and analytical) study was done on Kurdistan medical students in 2019-2020, 100 gypsum casts were prepared from the maxilla of students. Each cast’s photograph was taken under standard conditions. The width and length of each tooth were measured with Adobe Photoshop CS6 software and compared with the range %75-%85. The data was analyzed by t-test according to the side and gender. In this study, p value = 0.05 was considered significant.

The width-to-length ratio of maxillary anterior teeth was in the range of 0.82 to 0.91 in men and 0.84 to 0.9 in women. In the comparison of the right and left sides, the most asymmetry was related to the canines of men, and the lowest asymmetry was related to the central incisor and canine of women. No significant difference due to sex was detected, except the left canine (p=0.01), which was significantly higher in women than men.

Due to the low prevalence of Golden Standard, instead of focusing on a fixed numerical ratio, the harmony of anterior teeth dimensions with other facial and jaw ratios should be a criterion for determining dimensions of these teeth.

One of the side effects of dental home bleaching is hypersensitivity. This study aimed to assess the efficacy of the application of 1.23% acidulated phosphate fluoride (APF) gel before/after daily home bleaching with carbamide peroxide (CP) on tooth hypersensitivity during 14 days of treatment.

This randomized controlled clinical trial evaluated 24 patients randomly assigned to three groups (n = 8). Group 1 (control) used 20% CP gel for at least 6 hours per night for 2 weeks. Group 2 (APF-bleaching) used 1.23% APF for 4 minutes before using the CP gel. Group 3 (bleaching-APF) used APF gel for 4 minutes after using the CP gel. The bleaching procedure was the same in all three groups and lasted for 2 weeks. The patients were asked to record the severity of their TH daily using a 0-3 numerical severity scale. Data were analyzed by ANOVA and t-test (α = 0.05).

The mean TH score was 1.3 in the control group, 0.65 in APF-bleaching, and 0.5 in bleaching-APF (p value = 0.019) group. The mean TH score of the control group was significantly higher than that of the APF-bleaching (p value = 0.028) and bleaching-APF (p value = 0.008) groups. The TH score did not significantly change during the 14-day treatment period in the control or bleaching-APF groups. TH significantly decreased with time in the APF-bleaching group (p value < 0.05).

Application of 1.23% APF gel before bleaching significantly decreased the severity of TH due to bleaching with 20% CP but could not completely prevent it.

Structural equation modeling (SEM) is a class of multivariate statistical methods that combines the dimensions of factor analysis and regression to enable researchers to simultaneously examine the relationships between variables. This method has not been used in dental research until now. In this article, the effect of parents' awareness, attitude and performance on their children's dmft with the mediation of sugary substance consumption has been investigated using the SEM method.

In this research, questionnaires about the knowledge, attitude and performance of parents were completed among 385 people in Tabriz city. These questionnaires are based on previous research and made by researchers. Cronbach's alpha coefficients obtained for them were 0.949, 0.943 and 0.801 respectively, which indicates their good reliability. Also, checking the validity of the questionnaires (content validity with confirmatory factor analysis, convergent validity with average variance criterion and face validity with experts' approval) shows the usefulness of the tool. Structural equation modeling method with partial least squares (PLS) was used to test the research hypotheses.

According to the results of statistical analysis, the effect of "parental awareness", "parental performance" and "children's consumption of sugary substances" on "dmft" and also the effect of "parental awareness", "parental attitude" and "parental performance" on " The consumption of sugary substances by children" is significant at the level of 0.01 (P-value<0.01). Also, the results of the analysis showed that the indirect effect of the variables "awareness", "attitude" and "performance" of the parents on "dmft" through the mediator variable "amount of consumption of sugary substances" is significant at the level of 0.01 (P-value<0.01). But the effect of "parental attitude" on "dmft" was not significant (P-value>0.05).

In this study, it was shown that the knowledge, attitude and performance of parents have a significant effect on "dmft" through the variable of consumption of sugary substances.

This study aimed to determine the attitude of Isfahan dental students toward their field of study and Future careers in 2020-2021.

This study was conducted in the spring of 1400 at the Faculty of Dentistry of Isfahan University of Medical Sciences. 220 third and final-year dental students participated in this study. A researcher-made questionnaire with a 5-point Likert scale was used to examine students' attitudes in fields of study (9 questions) and future careers (11 questions). The results were reported with mean and standard deviation and T-test was used to analyze the data. The significance level in the analyzes was considered 0.05.

The score of the attitude towards the field of study was 32.76 (± 5.18), which is above the average. Also, the score of the attitude towards the future career was 29.89 (±5.89), which is lower than the average. The T-test showed a significant difference between the third-year and final-year students in the average score of the academic field (p value < 0.02).

The attitude of dental students towards their field of study is higher than the average (positive) but towards their future career is lower than the average, which can be due to the economic conditions of the society or an increase in the number of dental students, which hurts attitude of students towards their future career.

This study aimed to investigate the performance of senior dental students of the Faculty of Dentistry of Isfahan University of Medical Sciences in the documentation of dental records.

Methods & Materials:

 This cross-sectional study was performed at Isfahan University of Medical Sciences in the Spring of 2021. 200 dental students in their last two years of education participated in this study. A questionnaire was used to examine students’ performance in filling dental records, which included a Likert scale with five options: never, rarely, sometimes, often, and always; A score of 1 to 5 was assigned to each of the answers. Then the results were reported in the form of mean and standard deviation, and with a significance level of 0.05, an independent T-test was used to investigate their relationship with gender and academic year.

The performance of 77% of students was in the range of 2 to less than 4, which was reported as medium performance. Also, 0.5% had poor, and 22.5% had a good performance. Unlike gender, students' performance had a significant relationship with their academic year, so 5th-year students performed better than 6th-year students (p value < 0.001).

According to the findings of the present study, the performance of most of the senior dental students of Isfahan University of Medical Sciences in completing the dental file is at a medium level. It was also seen in this study that the academic year of students, unlike their gender, can affect their performance; So, 5th-year students performed better than 6th-year students.

Oral and dental health is one of the most important factors that affect the quality of life of children. It relates to oral health and evaluates the physical, social, and psychological effects caused by the state of oral health. This study shows the impact of oral and dental health in children aged 8 to 10 years old in Shiraz on their quality of life.

The present descriptive-analytical study was conducted in a cross-sectional way on 315 8-10-year-old boys and girls in Shiraz in 2017. People were clinically examined and the DMFT/dmft index was recorded for each one to evaluate their oral health status. To analyze the data, SPSS 20 software and Spearman's correlation coefficient tests, T-test, and one-way ANOVA were used (p value < 0.05).

Mean Child-OIDP score was 11.41 with a standard deviation of 13.55. The Child-OIDP index had no significant relationship with children's age (p value = 0.42). The average Child-OIDP index was not significantly different between boys and girls (p value = 0.27). There was a direct and significant relationship between the average child-OIDP index and the caries index of primary teeth (dmft) and the total caries index in the mouth (DMFT+dmft) (p value = 0.000).

The results showed the significant impact of oral and dental diseases in reducing the quality of life of children. Therefore, to increase the quality of life-related to oral health in children, necessary measures should be taken to improve their access to treatment and prevention.