فهرست مطالب شادیه مولائی

The aim of this study was to evaluate the educational environment of the School of Dentistry from the perspective of Ardabil dental students based on the DSLES model.

In this descriptive cross-sectional study, 197 pre-clinical and clinical students participated who studied in Ardabil Dentistry School in 2022. A 48-item DSLES questionnaire was used to collect data. Data analysis was performed using descriptive statistics and T-test.

The results of the analysis of 7 components of the educational environment based on the DSLES questionnaire showed the results as followings: the mean and standard deviation of student-student (2.18 ± 0.50), the organization of the educational program (2.16 ± 0.49), meaningful experience (1.81 ± 0.46), supportiveness (1.70 ± 0.49), breadth-interest (1.66 ± 0.47), flexibility (1.61 ± 0.43) and emotional climate (1.54 ± 0.41). Also, the mean and standard deviation in the whole questionnaire (educational environment) were estimated to be (1.82 ± 0.30). The results also showed that there is no significant difference in the educational environment of Ardabil Dental School from the perspective of Ardabil dentistry students based on gender (p value > 0.05); But there was a significant difference based on pre-clinic and clinic training course (p value < 0.05).

Based on the results, it is suggested that more attention should be paid to flexibility in the content of the curriculum and also to more communication channels between students and faculty officials to respond to their concerns.

Antibacterial properties of restorative materials are of great advantage as they control the progression of tooth decay. The use of self-adhesive composite materials has some benefits such as easier application and reduced treatment time. Because the antibacterial properties of restorative materials can play an important role in preventing secondary decay, especially in cervical restorations, this study was designed to evaluate the in vitro antibacterial activity of self-adhesive flowable composite against Streptococcus mutans.

An in vitro study was performed using 9 discs for each composite and glass ionomer group. The discs were prepared in three groups: micro-hybrid flowable composite samples, self-adhesive flowable composite samples, and self-curing glass ionomer samples. Direct contact test was used to compare the antibacterial properties of the discs. Data collection was done by direct contact test and visual counting of grown bacterial colonies. Data were recorded in a checklist developed according to the objectives of the study and analyzed using One-way ANOVA and Independent T-test in SPSS V22.

Findings showed that the antibacterial effect of glass ionomer was greater than that of flowable micro-hybrid composite and self-adhesive flowable composite. Also, a significant difference was observed between the antimicrobial activity of flowable microhybrid composite and self-adhesive flowable composite against Streptococcus mutans (P<0.05).

Glass ionomer and self-adhesive composite have a higher antibacterial effect against Streptococcus mutans, so they can be used as alternatives to treat tooth decay

There are several tools for evaluating the achievement of educational goals. One of these tools is logbook. The aim of this study was to evaluate the logbook designed in the operative dentistry department from the students’ point of view. 

Materials & Methods:

 In this cross-sectional descriptive study, 60 dental students included the study in the academic year of 2019. Information was collected through a researcher-made questionnaire in three sections: demographic data, logbook evaluation questions, and an open-ended question about suggestions. The validity of the questionnaire was confirmed by faculty members. The reliability of the questionnaire was confirmed by Cronbach´s alpha test with a coefficient of 0.8. Data analysis was performed using descriptive and analytical statistics.

 The mean overall evaluation score of Logbook was 28.98±5.77. 71.7% of students mentioned that the effect of logbook on their knowledge about the evaluation method was high and very high. Regarding the necessity of using logbook, 51.7% of students choose high and very high necessity. Using Pearson correlation test, there was a significant and positive relationship between the students’ final score of semester and their opinion about the Logbook evaluation. There was also a relationship between the logbook evaluation score and the experience of not using the logbook in the education period.

Based on the findings, in general, students' views on the use of logbook were moderate, and since logbook should meet the educational needs of all students, it is necessary to redesign its content.