[DMFT and the effect of dental education on orodental health of dental students in Isfahan School of Dentistry]

Dental caries is the most prevalent chronic disease all over the world and imposes heavy costs on people and health services each year. The present study was designed to evaluate the effect of DMFT, its related factors and dental education on the orodental health of dental students in Isfahan Faculty of Dentistry. In this descriptive cross-sectional study all the dental students [n=202] in Isfahan Faculty of Dentistry were evaluated regarding DMFT and oral hygiene procedures they were engaged in. For DMFT index the subjects were clinically examined; to evaluate oral hygiene procedures which the students used questionnaires were used. Data was analyzed by Spearman correlation coefficient, t-test, and Kruskal-Wallis and Mann-Whitney tests using SPSS 11 software [? = 0.05]. Mean DMFT index was 5.043; it was 5.54 and 5.33 in males and females, respectively, demonstrating no significant differences [p value < 0.05]. Mean DMFT index demonstrated no significant differences between students of different educational years [p value < 0.05]. Statistically significant differences were noted with the use of dental floss in students of different educational years; however, the results of the study showed that brushing frequency was not significantly different among the students [p value < 0.05]. Our results showed that it is necessary to raise awareness in oral hygiene and an emphasis on oral hygiene instructions is necessary

[Central odontogenic fibroma [COF]: a case report]

Central odontogenic fibroma is an uncommon benign ectomesenchymal and somewhat controversial tumor of the jaw. This lesion is seen in all age groups and in both the mandible and maxilla. In this report, a rare case of central odontogenic fibroma with the simple type predominance is presented in a 57-year-old man in the right maxillary canine edentulous region. The lesion was surgically removed. After enuleation and curettage, no recurrence was recorded during the next six months. Microscopically, because of histopathologic variability, two common variants have been described for COF: Simple and WHO type. However, this microscopic differentiation may be academic because it appears to have no correlation with clinical behavior of the two variants

[Comparative study of IL17 in normal and symptomatic dental pulps by immunohistochemistry technique]

IL17 is a pro-inflammatory cytokine which is often produced from CD4+ Th17 cells and uncertainty exists about its protective or destructive function. One of destructive functions of IL17 is through acting on osteoclasts. The aim of this study was to evaluate IL17 protein expression in tissue obtained from normal and symptomatic dental pulps. Healthy dental pulp samples and irreversible dental pulp samples were obtained from 20 third molars and 20 carious molars respectively. After tissue processing, pulp samples were immunostained with IL17 antibodies. Thereafter, distribution and staining intensity of IL17 protein was evaluated by the SID score and findings were analyzed using the Mann-Whitney U test. Analysing SID score with Mann-whitney test showed significant difference in IL17 [P=0.002] between symptomatic dental pulp tissues [2.35 +/- 1.23] and healthy samples [1.15 +/- 0.93]. The results indicated that significantly a greater level of IL17 is found in pulps of symptomatic teeth than those of normal teeth. Therefore IL17 may be suggested as a pathologic marker of inflammatory function in irreversible pulpitis