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Objective: Congenital fusion of jaws is a rare disorder which is observed in infants and cab ne syndromic and non-syndromic. Limited mouth opening in patients can affect the child growth and cause difficulties in feeding, swallowing and breathing
Case: A In this study, a female infant from Afghanistan, settled in Qom referred to AlZahra maternity with upper and lower fusion jaws is reported. According to clinical and laboratory examinations, infant had no other disorders except the above said disease, and her jaw fusion was non-syndromic
Conclusion: Treatment of this disease in early stages not only is easier, but also can be effective in terms of child's growth and feeding; because in most cases TMJ ankylosis occurs due to the lack of mobility and loss of function which leads to difficulties in oral operations
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Oral mucosal epithelia of smokers and waterpipe users are more susceptible to malignant alterations. The aim of this study was morphometric evaluation of the effects of using waterpipe on normal oral mucosa. In a cross sectional study, cytologic smear samples from the following three different areas: buccal mucosa, lateral surface of the tongue, and floor of the mouth [right] were taken from 40 smokers, 40 waterpipe users, and 40 normal individuals. They were then stained using Papanicolaou staining technique. Quantitative cytologic alterations such as nuclear and cytoplasmic size, nuclear-cytoplasmic [N/C] ratio, Feret ratio [FR], percent of karriorhexis, vacuolization of cytoplasm, two or multilobed nuclei, inflammation, and candida were evaluated. Quantitative evaluation was performed using Motic Plus 2 software, and 50 cells in each slide were studied. Practitioners were matched with age and sex in three groups An increase in nuclear size, the N/C ratio, and F. R, while a decrease in cytoplasm size were observed in lateral surface of the tongue, buccal mucosa and floor of the mouth of smokers, waterpipe users and normal individuals, respectively [p
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Humanos , Masculino , Fumar , Estudios Transversales , LenguaRESUMEN
Considering probable incidence of pathological changes in the follicles of impacted teeth, this study is conducted to evaluate pericoronal radiolucency of impacted third molars. In this cross-sectional study, widths of follicular spaces of 201 impacted third molars were measured on panoramic radiographs. Under local anesthesia, the teeth along with the dental follicles were surgically removed. After routine procedure, they histopathological were examined. After evaluating 201 dental follicles it was observed that, 50.7% of cases [102 cases] showed pathological changes and all of them were dentigerous cysts. Incidence of cystic changes in the follicles of third molars of patients aged 21 years and above, is 1.465 times more than patients who were under 21 years old. Also in dental follicles of lower third molars, the incidence of pathological changes was 1.957 times more than maxilla. Cystic changes in the evaluation of follicular widths up to 1.5 mm, was observed in 48% of cases, up to 2 mm, in 73.5% of cases, up to 2.5 mm, in 87.2% of cases and up to 3 mm, in 92.1% of cases. It seems that occurrence of cystic changes in dental follicles increases with increase in age and width of follicular space. However, considering the high incidence of cystic changes in pericoronal radiolucency around the impacted third molars, this study supports the prophylactic removal of impacted third molars
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Oral cancer has emerged as a significant cause of global public health concern. If a cancerous lesion is diagnosed in primary stages, the survival rate would be higher. Thus, the aim of this study was to evaluate knowledge, attitude and practice of general dentist regarding oral cancer in Sari, Iran. This cross sectional analytical study was performed on general dentists of Sari, Iran. The dentists were given a questionnaire including demographic characteristics of the dentists and questions about knowledge, attitude and practice regarding oral cancer. Data were subjected to SPSS 18.0. Quantitative data were reported as mean [ +/- SD] and qualitative data were shown as percent. Kolmogorov- Smirnoff sample test, t-test [p<0.07 was considered statistically significant]' equivalent nonparametric test and Spearman's rho test was used for statistical analysis. Total mean score of knowledge, mean score of females and mean score of males was 20.88 +/- 8.53, 20.96 +/- 7.62 and 20.71 +/- 10.43, respectively. Age and sex had no correlation with score of knowledge. Dentists of Sari do not have enough knowledge about oral cancer
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Statement of the Problem: The presence of impacted third molars in the jaws is a common finding in the routine dental examination of patients. Concerning the odontogenic components of the dental follicle, it can be the origin of different types of odontogenic cysts and tumors
Purpose: The aim of this study was to find feasible radiographic criteria to help differentiate between normal and pathological dental follicles
Materials and Method: 134 asymptomatic impacted third molars were recruited in this study. Then, based on the radiographic measurements, the ratio between the diameter of the dental follicle and the mesiodistal width of the tooth crown was calculated. After surgical removal of impacted third molars, the related dental follicles were evaluated histopathologically. Statistical analyses were performed by adopting chi-square test, t-test, receiver oprating characteristic [ROC] curve, and logistic regression using SPSS-19 software
Results: The mean ratio of the dental follicle's diameter to the mesiodistal width, in the normal and cystic follicle group was 1.18 +/- 0.07 and 1.18 +/- 0.08, respectively. There was no statistically significant difference between this ratio and the histopathological evaluation. Based on the logistic regression analysis, only the age >20 years and inflammation had predictive value in identifying cystic changes in dental follicle
Conclusion: According to the findings of the current study, the ratio of dental follicle diameter to the mesiodistal width of the teeth cannot not be employed as a diagnostic index to differentiate between normal and pathological dental follicle
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Objective: Dental profession is associated with a high level of stress experienced by clinicians in private practice as well as students and instructors in dental school environment. The purpose of this study was to detect the main stressors in dental students of School of dentistry, Babol University of Medical Sciences in 2011-2012
Methods: In this descriptive, analytical study, data were collected via Dental Environment Stress [DES] questionnaire. Understudy subjects were all dental students in Babol University [n=199] selected by census sampling. Data were analyzed using chi-square and t-tests
Results: Six factors were found to be the main stressors in dental students: 1. More than one exam in the same day [2.76 [0.596]]; 2.Insufficient time interval between exams [2.74 [0.581]]; 3.Insufficient exam time [2.62 [0.693]]; 4.Instructors humiliating students or showing their dissatisfaction of the procedure done by the students in front of patients [2.61 [0.618]]; 5.Too many credits offered per semester [2.35 [0.849]] and 6. In appropriate behavior of the staff [2.33 [0.793]]. Of all departments in Babol Dental School, departments of Prosthodontics, Radiology and Endodontics caused the highest level of stress and anxiety in students and had statistically significant differences in this regard with other departments
Conclusion: The stressors had greater impacts on female students particularly the fourth year dental students. Attempts must be made to modify the curricula and exam schedules particularly in the most stressful departments to decrease the level of stress in dental students
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Epulis Fissuratum [Epulis Fissuratum [EF] or Denture Epulis or inflammatory fibrous hyperplasia] is a common hyperplastic tumor-like lesion with reactive nature, related to loose and ill-fitting, full or partial removable dentures and it is more common in women than men. For this reason, hormonal influences may also play role in its creation. The effect of steroid hormones especially sex hormones [Estrogen and progesterone] on oral mucosa is identified in some studies. In the present study, the distribution pattern and presence of estrogen and progesterone receptors in epithelial, stromal, endothelial and inflammatory cells in Epulis Fissuratum was investigated. This cross-sectional study was carried out on 30 samples of paraffin blocks with Epulis Fissuratum diagnosis and 30 samples of normal mucosal tissues as a control group who have had surgery as a margin beside the above lesions and had been obtained from the oral and maxillofacial pathology departement of Babol Dental School since 2003 up to 2010. Intensity of staining and immunoreactivity were evaluated using subjective index and considering the positive control group [breast carcinoma]. Epithelial, stromal, endothelial and inflammatory cells didn't show reaction with monoclonal antibodies against estrogen and progesterone in none of the samples. It seems that the hypothesis of the existence of estrogen and progesterone receptors in epulis fissuratum and normal oral mucosa is ruled out. The possibility of direct effect of estrogen and progesterone in occurring of epulis fissuratum is rejected