[ evaluation of calulus rate in patients with nephrolithiasis]

Some reports show that oral manifestations such as uremia osteomatiis, self bleeding, periodontal diseases, xerostomia and calculus formation are increased in patients with renal disease. Based on similar structural composition and similar process of production of kidney stones and dental calculus, we performed this study to evaluate the prevalence of dental calculus in patients with kidney diseases. In this case-control study, 30 patients with idiopathic nephrofithiasis were selected as case group and 30 sex and age matched healthy persons were selected as control. They had no systemic and periodontal diseases. Silness-Loe plaque index and Green-Vermillion calculus index were recorded for both groups. Data were analyzed by Chi-square, Fisher's Exact test, T-student and Two-way ANOVA. Results of this study showed that there were not any significant differences between case and control groups in amount of plaque and dental calculus P=0.79. Patients with nephrolithiasis are not more susceptible to calculus formation

[Clinical evaluation of the effects of radiotherapy on oral mucosa and gingival health in radiotherapy center of Ghaem Hospital]

It is necessary to mention that 4% of malignancies include pharyngeal and oral cancers. One of the treatments is radiotherapy in addition with chemotherapy and surgery. Radiotherapy of head and neck can cause some complications with impression on mucos. Regarding this point, we decided to study different effects of radiotherapy on gingival and oral mucosa. This descriptive analytical study was performed on 30 patients with head and neck cancers referred to radiotherapy department of Ghaem Hospital. Data collection method included interview, clinical examination and patient's medical file investigation. The data was collected through relevant forms. The relationship between deferent dosages of radiation on gingival health and oral mucosa was investigated. Data analysis was done with use of GLM, Cochran, MANOVA tests Via SPSS V. 11.5 software. A significant relationship between irritation of oral mucosa ulcer development, mucositis and increase in radiation dosage was observed. But there wasn't any significant relationship between candidosis, ANUG, perleche and radiation dosage. Periodontal Index [PI], Gingival Index [GI] and Papilla Bleeding Index [PBI] showed on increase, but due to limited time of study, no changes on gingival recession was observed. Plaque Index [PlI] decreased during treatment process due to increase in oral hygiene. There was a direct relationship between oral radiotherapy complications and increase in radiation dosage. With attention to this point that some complications such as ANUG and perleche were not observed, doing a study with longer duration is recommended