Yazd Journal of Dental Research

Introduction: In recent years, the elderly people proportion in our community has increased due to the better public health accessibility and longer life expectancy. Oral health status of the elderly has a profound impact on their quality of life and social relationships. The aim of this study is to assess the frequency of dry mouth and burning mouth without any clinical signs between elders over the age of 65 in nursing homes in yazd province. Methods: This descriptive cross-sectional study was conducted on 225 institutionalized elderly from Sep 2012 to Aug 2012 in Yazd province. Dry mouth and burning mouth incidence were examined via applying a questionnaire and clinical procedures. Systemic disease background and history of medications usage were derived from the participant’s hospital records. Statistical analyses were performed using SPSS (versions 17) applying chi-square statistical test to compare variables and the significance level was set at 5% (p<0.05). Results: Eventually 225 elderly were selected, among which 9 cases were excluded due to lack of owning consistent criteria of the study. 61.1% (132) participants were females and 38.9% were males, whose age range and average were 77±3 and 65-91, respectively. In this study, a significant relation was observed between the frequency of dry mouth and the gender (p=0.02), though no statistically significant relation was observed between burning mouth incidence and the gender (p=0.16). Conclusions: Based on the study findings, it seems that dry mouth and burning mouth involve prevalent disturbing problems within the elderly. However, other studies are necessitated to achieve more accurate results.

Introduction: Impacted tooth may be associated with various complications, among which cysts and tumors of jaw can be mentioned. As a matter of fact, neoplastic or cystic changes can occur in surrounding tissues of impacted tooth. Therefore, the present study was accomplished aiming to determine the relative frequency of pathologic lesions associated with impacted teeth in pathology reports of Yazd dental school in 2000-2011. Methods: In this descriptive cross-sectional study, 1121 samples available in the archive of Pathology department of Yazd dental school were examined by census method. The samples were related to the patients recorded within recent 10 years (1380-90) who had impacted teeth accompanied with cystic and tumoral lesions. Moreover, the study data were analyzed by SPSS (ver.16) applying Fisher&#39;s exact test. Results: In this study, among 50 lesions related to impacted teeth, 38 cases (75%) were cysts and 12 cases (25%) were tumors. The most common lesions observed, were Dentigerous Cyst in the first place (64%) and then Odontogenic Kerato Cyst (48%) in the second place. The occurrence of these lesions within males (68%) was reported higher than that of females(32%) and it was mostly observed in the age group of 20-46 (60%). Furthermore, the most common location of engagement was posterior mandible (70%). Conclusion: The results of the current study revealed a significant association of pathologic lesions with impacted teeth in the studied population. Therefore, surgery treatment for impacted teeth with follow up and evaluation of the surrounding tissues seem to be necessitated.

Introduction: Ankyloglossia is a developmental anomaly of tongue which causes a deficiency in tongue mobility. This anomaly can create speech problems, periodontal diseases and orthodontic disorders. Therefore, this study aimed to determine the prevalence of ankyloglossia in 6-11 year students in Yazd. Methods: In this desciriptive cross-sectional study conducted in 2009, 1199 male and female students were selected via cluster sampling who aged 6-11 years and studied in primary schools of Yazd. Ankyloglossia diagnosis was based on presence of short and thick lingual frenum as well as deficiency in lingual mobility . The study data were analyzed via SPSS statistical software (ver.15) applying Chi-square test. Results: The total prevalence of ankyloglossia among 1199 students (598 boys and 601 girls) was reported 2.5%, which was significantly higher within the boys than girls (P-value= 0.026). Conclusion: The study results revealed that prevalence of ankyloglossia in students of 6-11 years in Yazd was 2.5% and as a matter of fact, it was more prevalent within boys than girls.

Introduction: Odontogenic myxomas are benign but locally aggressive neoplasms arising from odontogenic ectomessenchyme found almost exclusively in the jaws and arise only occasionally in other bones.

Case report:.By a brief review of clinical and radiological features, and also diagnostic and operative dilemmas in assessment a rare case of adontogenic myxoma was presented, which was occurred in the mandible of a 26-year-old femal palient.

Conclusion: Careful evaluation of clinical features and radiographic imaging with detailed assessment of histpathology leads to correct diagnosis

Introduction: Chronic renal failure is regarded as one of the main serious problems of general health worldwide. In fact, it is associated with different oral manifestations. Therefore, this study aimed to evaluate the frequency of clinical oral findings of dialysis patients in Yazd in 2012.

Methods: This descriptive cross-sectional study was conducted among 95 dialysis patients who were selected via convenience sampling method from Apr 2012 to Jun 2012 in three Yazd hospitals. The required study data were collected by clinical examinations and a checklist involving the frequency of oral manifestations (dry mouth, unpleasant mouth taste, the coated tongue, history of systemic disease and previous prescription of systemic medications). The statistical analyses were performed using SPSS Software (ver 17) via descriptive statistics and the significance level was set at 5% (P-value<0.05).

Results: The patients’ mean and age range were 59.04, 19-77 years old, respectively. There were a total of 42 females (44.2%) and 53 males (55.8 %) in the study. Dry mouth, coated tongue and unpleasant mouth taste frequency were reported to be observed in 89.6%, 56.3% and 89.6% of patients, respectively. All the patients had a history of a systemic disease and cardiovascular disease was the most common systemic diseases after the urological and nephrological disease. The cardiac and anti-hypertensive medications (91.6%) were regarded as the most common among the participants after 100% vitamin  usage.

Conclusions: The findings of the present study showed a high frequency of oral manifestations among dialysis patients which can affect patients’ quality of life as a secondary condition. As a result, these oral manifestations are recommended to be monitored among dialysis patients and the relevant treatments need to be applied.

Introduction: The use of internet makes it possible to access the newest scientific information. Hence, this study aimed at investigating university students' use of internet in the dentistey school of Yazd in 2014.

Methods: This descriptive cross-sectional study was conducted on 384 students of Shahid Sadoughi Dentisty School in Yazd via census method in 2014. In addition, to collect the required data, a researcher-made questionnaire was applied. Which its reliabitilty and validity were confirmed. ANOVA, T-test, and Pearson correlation coefficient, were applied to statisticeally analyze the collected data.

Results: A total of 167 men(43.5%) and 217women(56.5%)with a mean age of 25.88±5.9 years participated in this study. The lowest rate of daily internet use was 0.5 hour, and the maximum rate was 8 hours (2.67±2.54). The maximum rate of weekly internet use ranged from 1 to7 days with a mean of 5.39±1.7days. The study results demonstrated that the mean of  internet use was 39.28±08/8 out of 70 and mean of internet use skill score was  13.37±3.53 out of 25. Moreover, there was a significant difference (P=0.014) regarding the education level of the family head. A significant difference was also reported in terms of the internet use based on age(P=0.001), economic status(P=0.001),entry quotas(P=0.03), and the location of internet use(P=0.002). The low internet speed was expressed as the most important problem by 20.1% of students.

Conclusion: It is recommended to enhance the students'skills by taking necessary steps such as attending related classes regularly. In addition, technical problems such as low speed shoud be solved

Introduction: The academic status of the students is regarded as an important issue in the educational activities. Therefore, this study aimed to determine the effective factors on the academic achievement of dentistry students at Shahid Sadoughi University of Medical Sciences of Yazd.

Methods: This descriptive cross-Sectional study was carried out on 200 students from Shahid Sadoughi Dentistry School of Yazd in 2014 using the census method. All students with a GPA equal to or over 15 were considered as successful students and those with an average less than 14 were identified as unsuccessful students in regard with academic achievement. The study data were collected using a valid and reliable questionnaire, which were then analyzed using the SPSS software (ver 17) via Chi-Square test.

Results: The results showed, a significant difference was observed between the two groups of students in terms of individual characteristics (such as gender, student status, place of residence, employment, smoking, family income, mother’s education level) and academic characteristics (such as time gap between high school graduation and entering the college, high school GPA, student ranking in Concourse exam, number of educational units completed and the educational failures)(P<0.05), while no significant difference was detected between the two groups in age, marital status, education as well as parents’ occupation (P>0.05).

Conclusion: The findings of the present study revealed that   successful and unsuccessful students are significantly different  in regard with individual and academic features. Moreover, the role of such factors as psycho-social factors are recommended to be evaluated in the future studies.

Introduction: University as an institution promotes knowledge and supplies specialist manpower in the community, which is obliged to continually assess its current status to achieve practical solutions in order to improve the quality of education. Therefore, the present study aimed to assess students' satisfaction from  clinical education status in the dentistry School of Yazd.

Methods: In this descriptive cross-sectional study, 205 questionnaires were completed by dental graduate students who were passing the first and second rotation in the clinical wards. The validity and reliability of the questionnaire were confirmed. The collected data were analyzed via ANOVA and T-Test applying SPSS software (ver, 17).

Results: In this study, 83 males (40.5%) and 122 females (59.5 %) participated. Students’ satisfaction score from clinical education of college was 3.04±0.96, which was reported as moderate. The most satisfaction belonged to Pediatrics ward(3.7±0.6) and the lowest satisfaction was devoted to the orthodontics ward (2.9±1.01). Moreover, a significant relationship was observed between students’ satisfaction rate and their education term (P=0.046), though no significant relationship was reported between satisfaction rate and gender (P=0.088) as well as marital status (P=0.108).

Conclusion:  The present study findings revealed that students’ satisfaction from clinical education was moderate in all sectors with a low fluctuation. Hence, providing the necessary facilities, promoting university instructors and attempting to attract the patient seem to be necessitated in order to improve the status of clinical education which should be specifically taken into consideration by the educational planners.