maryam jolehar

  Better and higher adaptation of students to the college environment can have a significant impact on the academic performance of individuals and ultimately their academic progress. The purpose of this research is to investigate the personality traits that affect the academic adjustment of dental students in Tehran Islamic Azad University of Medical Sciences in 2021-2022.

This descriptive research was conducted on randomly selected students. Two questionnaires were used: 1: Anderson academic adjustment 2: HEXACO 6-factor model. The questionnaires also contained demographic information such as (age, sex, year of education, marital status). Kruskal-Wallis test was used to investigate the relationship between academic adjustment and subgroups of personality traits, and the role of variable factors was determined by regression analysis. All calculations were done using SPSS software version 26.

The average academic adjustment score among 250 participating students was 34.3 ± 2.582. The average score of honesty-humility, excitability, extroversion, pleasantness, openness to experience, and conscientiousness personality traits were obtained as 11.97, 10.19, 13.49, 10.40, 13.55, and 13.85 respectively. There was a positive and significant relationship between personality subgroups, extroversion and conscientiousness with compatibility, and between personality subgroups, excitability and agreeableness, there was an inverse and significant relationship with compatibility (p<0.05).

 It seems, status of academic adjustment for dental students of Tehran Islamic  Azad University was suitable Extraverted and dutiful had more academic adjustment and excited and negotiable ones had less adjustments.

The purpose of this study is to determine the effect of X-ray exposure in CBCT imaging on the amount of nuclear changes and repair index of buccal mucosa cells in the patients of oral and maxillofacial radiology department of Tehran Azad University in 2022.

he present study is an experimental research, comparing before and after, which was conducted on 63 eligible patients. Buccal mucosa cells were  examine. once before and once 10 days after X-ray exposure, Then Papanicolaou staining was used to measure the micronucleus and other nuclear changes and observation was done with a light microscope with 400× magnification. CBCT images by Papaya 3D Plus device (Genoray, Korea) with two FOVs, small (4 x 4 cm) and large (14 x 14 cm) and Voxel Size: 0.175 mm with exposure conditions of 60-90 kV and 4-12 mA were prepared.

Statistically significant increase in Micronucleus (p<0.001), Karyorrhexis (p<0.001), Karyolysis (p=0.01) and Broken egg (p<0.001) before and after X-ray exposure. But there is no statistically significant difference in the amount of Repair index (p=0.054)

The present study shows that CBCT imaging can induce cytotoxic and genotoxic effects on buccal mucosa cells. Therefore, CBCT should only be prescribed when necessary because it cannot be considered a risk-free procedure.

Considering the global prevalence of cancers and the complications of common cancer treatments, there is growing interest in using medicinal herbs to complement cancer treatments and reduce treatment’s side effects. Therefore, we investigate the effect of the extract of Nasturtium on the viability of oral cancer cells.

In this experimental study, we prepared aqueous extract from Nasturtium leaves and human oral cancer cells(OCC‑24) and normal fibroblast cells (HF2FF cell line) from a cell bank. Then the toxic effect of different concentrations of the extract on cell viability after 24–48 hours of exposure was investigated with the methylthiazol tetrazolium assay. Ultimately, the optical density was measured at 570 nm by an Elisa Reader. Analysis of inhibitory concentration 50 (IC50) was also performed. The data were analyzed by paired Student’s t‑test and one‑way analysis of variance.

Data showed that the extract had statistically significant anticancer effects in concentrations above 0.125 mg/ml for 24‑hour exposure and in concentrations above 0.5 mg/ml for 48‑hour exposure (p‑value <0.05). Also, this extract had an adverse effect on the viability of normal cells; however, this effect occurred in high doses of the extract (p‑value <0.05). Analysis of IC50 criteria indicates that with increasing time, a higher concentration of the extract is required to inhibit the viability of cancer cells.

Because of the results, this aqueous extract can be suggested as a potential therapeutic agent in oral cancer. The best concentration of the extract was found to be 1 mg/ml.

Students show considerable differences in their learning styles and abilities to use information; this matter plays a significant role in how to teach them. In view of that, reflecting on various learning styles among students and accommodating them to meet the requirements of teaching practices can contribute to learning at higher levels along with fulfilling more academic achievements. Therefore, the present study investigated learning styles among dental students at the Islamic Azad University, Tehran, Iran. This study was a descriptive cross-sectional research, in which the VARK Questionnaire consisting of four learning styles (i.e., visual, aural, read/write, and kinesthetic) was utilized. The questionnaire contained 16 statements/items with four options representing a learning style. After determining the dominant learning style in students, the role of related factors was determined using regression analysis. Among the 442 participants in this study, 248 (56.1%) and 194 (43.9%) individuals were female and male, respectively. Data analysis revealed that a large proportion of the students (98%) were tapping one of the mentioned learning styles. The most and least frequent styles were found to be the aural (32.98%) and visual (19%) types, respectively. It was concluded that most dental students were keeping to the aural learning style. In this regard, it seems that focusing on teaching strategies that reinforce learning styles, especially the aural type, can significantly help to improve learning processes and fulfill academic achievements among university students.

Conventional cancer treatments usually have complex complications. Also, the resistance of cancer cells to treatments is a special point that indicates the need for alternative therapies such as the use of herbal compounds. The aim of this study was to evaluate the anticancer effect of aqueous extract of Persia rose on oral cancer cell line.

In this experimental study, the toxicity effect of aqueous extract of Persia rose with different concentrations over 48 hours and repeated 5 times on the viability of human oral carcinoma cells (NCBI cell line No # C152) and Normal gingival fibroblast cells (HF2FF cell line) were examined by MTT method and finally, the optical density of the solution obtained at 570 nm was read by Elisa Reader. The results were evaluated using Two Way ANOVA test and Tukey POST HOC test was used to compare concentrations.

The results showed that the aqueous extract of Persia rose had a negative effect on the viability of cancer cell line compared to the control group and reduced the viability of cancer cells. This effect was inversely related to increasing the extract concentration. However, this effect did not show a statistically significant difference (p> 0.05). Decreased viability in normal gingival fibroblasts was also observed due to the use of different concentrations of the extract (p> 0.05). Two-way ANOVA test showed that the interaction between the independent variable (extract concentration) and the dependent variable (cell viability) was not significant depending on the independent variable (cancer cell type or healthy) (p> 0.8).

It seems Persia rose extract cause reduction of cancer cells and normal gingival fibroblasts viability.

Mesenchymal tissue origin is one of the most common lesion in oral cavity. Most of these lesions are exuberant response to local irritation produces a soft tissue enlargement which are similar to neoplastic pathologic processes. Due to this diagnostic challenge the present study was conducted for reviewing the prevalence of soft tissue lesions.

The English articles in scientific databases including Google Scholar, Sci- ence Direct, Medline, and PubMed, published between 2007 and 2019, were searched by using relevant keywords including oral soft tissue lesion, oral mucosal lesion, neoplastic soft tissue lesion, reactive lesion, hyperplastic lesion and non-neoplastic soft tissue lesion. Finally, forty-nine articles were reviewed in this study.

Findings showed that the most diagnosed lesions were benign in nature, and inflammatory in origin. Among this reactive/non-neoplastic lesions, fibrotic lesions, such as irritation fibroma or fibrous hyperplasia, were the most abundant lesions reported. There is a pronounced female predilection, and reactive lesions are most common in the fourth to sixth decades of life. Regarding the location of reactive lesions, the gingival mucosa was the most common site of involvement. Tumoral lesions with the origin of vascular, fibrotic and fat were the most commonly reported tumors.

Oral lichen planus (OLP) is a relatively common chronic autoimmune disease. In the present study, we tried to correlate the histopathological criteria of WHO and modified WHO (mod.WHO) classification systems using two methods, namely, intraobserver and interobserver observations in these samples.

This cross‑sectional study was performed on 64 microscopic slides with the diagnosis of the OLP lesions, based on both clinical and histopathological features. At first, each pathologist individually (as intraobserver) examined microscopic slides based on both histopathologic diagnostic criteria. Later, three pathologists in a group (as interobserver) reevaluated microscopic slides 2 months later in the second phase of the study, based on both systems. Eventually, the findings were statistically analyzed with Cohen’s kappa coefficient (κ) and reported.

According to the results, the lichen planus was detected in 8 cases using the WHO method, and in 41 cases using the Mod.WHO method. Intrarater Kappa coefficients were κ = 0.114, P = 0.299; κ = 0.181, P = 0.012; and κ = 0.062, P = 0.424 for three pathologists, respectively. The findings showed no reproducibility (κ = 0.148, P = 0.024) and there was no correlation between the two systems. Statistical analysis revealed that the histopathological criteria of the WHO classification for detecting the lichen planus microscopy were more sensitive but the Mod.WHO classification criteria were more specific for detecting the lichen planus.

Due to the higher specificity of the histopathological criteria of Mod.WHO classification rather than WHO classification, it seems that Mod.WHO classification has more important and useful criteria for histopathological diagnosis. Finally, we can conclude that the use histopathologic criteria of the Mod.WHO classification is more useful in the diagnosis of lichen planus, although it should be in combination with clinical information.

Candida species have been associated with the emergence of resistant strains against antifungal agents, recently. Antifungal agents are usually accompanied with side effects. Plant products have been used traditionally as alternative medicine to cure candidiasis. So it seems vital to find the new antimicrobial agents with fewer side effects. In this survey, we aimed to evaluate the antifungal effects of aqueous extracts of Mentha longifolia against oral pathogenic candida species.

This study was conducted on Candida albicans ( ATCC 10261), and ten Candida albicans isolated from leukemia (AML and ALL) patients with thrush.  
The antifungal activity and minimum inhibitory concentration (MIC) of Mentha longifolia extract were evaluated and then MIC results compared with
Chlorhexidine and nystatin.

Mentha longifolia extract showed antifungal properties. MIC results of extract were in the range of 31.25 to 125 µg/ml. while MIC of Chlorhexidine were in the range of 125 to 250 µg/ml. Moreover, a significance difference was not observed between MIC of standard species and clinical isolates of Candida albicans (P>0.05). According to the results, aqueous extract of Mentha longifolia was more successful in inhibition of growth of Candida isolates, compared to
Chlorhexidine (P<0.001).

The inhibitory effects of Mentha longifolia extract have shown that it has potential to be considered as a promising candidate for the development of antifungal agent for treatment of thrush.

Desmoplastic fibroma is a rare, benign fibrous tumor of bone which is locally aggressive. The mandible is the most prevalent affected of the facial bones. Nevertheless, reports of desmoplastic fibroma affecting the mandible are seldom in the literature. It causes bone destruction and has a high tendency for local recurrence. In this case report, we report a case of desmoplastic fibroma which is located in mandibular angle and extended to coronoid process, in 20-year-old female patient.

The ability to communicate effectively with patients is one of the most important features of a clinician. Effective communication leads to the proper transfer of information from the sender (patient) to the recipient (clinician), enhances the recipient's knowledge and ability to perform tasks or influence his or her attitude and behavior. Therefore, considering the importance of communicating with the patient, which is certainly effective in treating the patient, in this study, we investigated the attitude of dental students about patient communication skills and its related factors at faculty of dentistry, Tehran Medical Sciences , Islamic Azad University in 2017.

In this descriptive study, a researcher-made questionnaire containing various indicators of communication skills was used in 10 items, and these were formulated in accordance with the four-point Likert scale of these indicators. Their validity and reliability was thus ensured and its reliability was tested by Test-Retest and it was equal to 0.85. Then, their attitudes about the skills of communication skills classified as absolutely agree (good/positive attitude), agree (moderate attitude), disagree & absolutely disagree (poor/negative attitude). Finally, the role of factors related to attitude was determined using chi-square test.

The study was conducted on 123 senior year students with an average age of 30 years. 33.3% were male and 66.7% were female. 39% were married and the rest were single. 48% of people did not participate in communication skills training courses. 52% of people had communication problems with their patients. The good attitude was 40.6%, the moderate attitude was 59.5% and there was no negative attitude. There was no significant relationship between age, gender, marital status, participation in training course and communication attitude (P <0/2).

Regarding to given results , although negative attitude does not exist, but there was not positive attitude related to communication skills at to ideal level. So, related educational courses was recommended.

Use of computer and internet in our modern and digitalized society is an efficient tool to be up to date and fulfil the information gaps. The aim of this study was to evaluate the extent of computer and internet usage among dental students of Islamic Azad University, Tehran, in 2016. This descriptive study for evaluating access and usage of computer and internet by dental students was done using a researcher-made questionnaire on 401 dental students. Validity and reliability (Kappa: 0.82) of the questionnaire was confirmed. Statistical analysis was done by SPSS22 using descriptive and Logistic regression analyses. More than 95% of the students had access to the computer and Internet. 45.6% of students reported their skills were in the basic level. The major use of computer among the students was internet but only 13.2% of students used Microsoft Office program. The students used the internet for dental subjects even monthly (34.9%) or weekly (29.4%). Only 9.7% of the students had participated in educational workshop for learning methods of research. The most limitation was internet velocity. Positive correlation was found among prospering ownership status (P<0.001), economic status (P=0.05), level of education semester (P=0.038) and the computer & internet usage (what’s more in terms of access and also in terms of improve information and knowledge). Based on the results, a higher economic level, higher level of education, and property ownership made better access to the computer and Internet. However, computer skills should be more concerned in educational program.

Well-defined radiolucencies in the anterior region of the upper jaw, are often considered as anatomic structures or pathologic lesions. The most common anatomic structure in this area is the shadow of incisive foramen and the most common lesion is nonodontogenic cyst known as incisive canal cyst. However, other entities especially uncommon cysts and tumors should be considered as well. In this article, we present a case of odontogenic cyst known as glandular odontogenic cyst in the anterior maxilla with histopathologic findings reminiscent of a nasopalatine duct cyst. The diagnostic sequence and criteria for differential diagnosis are discussed. Also, the significance of thorough clinical and radiographic examinations are emphasized. Actually, we are going to focus on histopathological criteria known as Rushton body which is one of the important features for differentiate between nonodontogenic cyst like nasopalatine duct cyst and an odontogenic cyst, glandular odontogenic cyst.

Myofibroma is an uncommon benign mesenchymal neoplasm. Solitary myofibroma is common in soft tissues of head and neck, but rare in the jaw bones. Only a few sporadic cases of solitary myofibroma of mandible have been described. The aim of the present study was to present a clinical case of a patient with a myofibroma in mandible bone and its management. Differentiating this lesion from other benign and malignant neoplasms is crucial in deciding between a radical and a conservative treatment approach. We explained that diagnosis of myofibroma can be reached by a histopathologic and immunohistochemical analysis and surgical excision is the treatment of choice.