JOURNAL OF ISLAMIC DENTAL ASSOCIATION OF IRAN (MAJALLAH-I-DANDANPIZISHKI)
Year:2001 | Volume:13 | Issue:1 (36)|Papers Count:14

The goal of this study was determination and progress of caries in, 6,9 and 12 years old children in Kermanshah city. Three hundred school children from each year group were selected with randomized cluster sampling (equal boys and girls). The examination of carried out with observation and use of blunt explorer (17 - 21) in natural light. With regard to restriction of DMFS index was used as a supplement to compare caries progress in 3years interval after eruption. Fourty one of 6 years old were omitted because of first permanent molar, then 859 were examined. The mean of DMFT and DMFS of first permanent molars obtained 1.2 and 9.84 respectivly, that the most portion of them were DT = 1.1 and DS = 8.37. The mean of DMFT and DMFS in 6.9 and 12 years group were (0.62, 9.86), (1.3, 9.68) and (1.6, 14.3) respectively, Which were Significant (ANOY A, P = 000). At The same time the normality of caries distribution between boys and girl were equal (wilcoxon, p = 0.67)

The nervous system has an important and vital role in the human body, but unfortunately damaged nervous tissue can be repaired very slowly. The Scientists have been searching for the ways to improve the repairment of damaged nervous tissue. Radiation of low power He-Ne laser has been suggested to solve this problem. In our research, 20 rats were divided randomly into control and case groups. The facial nerves of all these rats were damaged under general; anaesthesia and sterile condition. The Day of surgery was considered day zero. Rats of cace group recived every day laser radiation (= 65mm). At 27th day rats were killed by ether and the facial nerve was studied histologicaly. Data was analysed by T-Test and P<0.05 was significant. In the case group the repairment was faster. So, Low power He-Ne laser radiation on crushed siatic nerve of the rats had accelerated the nerve repair process.

Drain is aneffective tool in the major maxillofacial surgeries that is used to decrease postsurgical complications. This research evaluated it's efficacy of in mandibular impacted tooth surgery.Primary wound closure (Test group) was compared to a simple primary wound clousure (Control group) after removal of impacted mandibular third molars for evaluation of its effect on Postsurgical complications. Surgery was performed on 12 patients in cross over fashion. Both surguries in both sides were done in on session.There wasn't any significant difference in the operation time between two groups. Facial swelling was found to be significantly less in the test group. Sex differences in the bleeding wound bread down and echymosis between the tow groups. There were no differences in the severity of pain and infection between the two groups.According to our findings, using of this tool in surgeries with high trauma was advocated for decreasing swelling rate and for patients, Comfort.

Drain is aneffective tool in the major maxillofacial surgeries that is used to decrease postsurgical complications. This research evaluated it's efficacy of in mandibular impacted tooth surgery. Primary wound closure (Test group) was compared to a simple primary wound clousure (Control group) after removal of impaced mandibular third molars for evaluation of its effect on Postsurgical complications. Surgery was performed on 12 patients in cross over fashion. Both surguries in both sides were done in on session. There wasn't any significant difference in the operation time between two groups. Facial swelling was found to be significantly less in the test group. Sex differences in the bleeding. wound bread down and echymosis between the tow groups. There were no differences in the severity of pain and infection between the two groups. According to our findings, using of this tool in surgeries with high trauma was advocated for decreasing swelling rate and for patients, Comfort.

The purpose of this study was the clinical and radiographic evaluation of amoxicilline and metronidazole to control advanced periodontal disease. 16 individuals, .aged 35-58 years, with advanced periodontal disease were recruited among the patients referred to the department of periodontology. Baseline examination included assessment of clinical and radiographic parameters.All of the patients were exposed to non-scaling, root planing and comprehensive oral hygiene instruction. Then patients were randomly distributed in to two groups. Amoxicillne (375 mg TID for 10 days) and metronidazole (250 mg TID for 10 days) administered to the test group. During the corresponding period the control group received placebo. Clinical assessment was repeated 2 and 6 months after therapy and included measurement of PPD, CAL, BOP, PI. Radiographic assessment was repeated only after 6 months. The results showed those clinical parameters 2 and 6 month after therapy and the radiographic parameters 6 months after therapy.Administration of these medications as adjuncts to mechanical therapies was more effective than mechanical therapy alone.

Early childhood caries is (ECC) defined as a specific pattern of dental caries in infants and toddlers, with diverse consequences for oral and general health. The caries is caused by the long - term exposure of the teeth to formula; mother's milk and other natural sweets.The purpose of this was to evaluate the habit of feeding at nighttime and prevalence ECC and usage of pacifier in infants and toddlers. This study was cross sectional research on 600 of infants and toddlers referred to health centers of kerman city. The Results of this study showed. 1. There is no significant relation between sex and prevalence of caries.2. There is sigpificant relation between prevalence of caries and type of feeding. 3. Prevalence usage of pacifier was 33%.

Population studies of HLA were preformed in Iranian patients with cleft lip and cleft lip & palate (CL / CLP). The whole sample showed a considerable correlation with HLA - B5 and CW3 in study group was 6.2% where as the prevalence of these antigens in normal population were 41 % and 38% respectively. The relative risk (R.R) for HLA - B5 and CW3 were also calculated to be 0.09 and 0 - 1 respectively. Therefore, it can be postulated that the high prevalence of B5 and CW3 antigens in normal population can be considerd as a protective factor against cleft anomalies.

The Plaque control is one of the most important aspect of dentistry sciences. Antiplaque agents generally contribute their effect either mechanically or chemically. In this study three different formulations were prepared and coded as such; APT 1, APT2 and APT3 and then compared with two commercial samples (APTy and APTx). PH of the samples at 10 - 40°C was at the range of 6 - 8. Extent of antiplaque activity of sample APT3 with Fluoride and plaque index of (0.72±0.12) was the sample APTx with plaque index of (1.25±0.1) was the lowest one.

The aim of this study was to assess overjet, overbite, and crossbite and their correlation with gender and age in a relatively small and pure population. This study was performed in a sample consisting of 537 students with the ages between 11-13 years from the Mehran city and the distribution of their frequencies was determined using accurate statistical methods. The Result showed 39.25% of normal overjet, 22% of excessive overjet, and 38.75% of decreased overjet and there was a significant relationship between the changes of overjet and the gender. The result also showed 45.5% of normal overbite, 19.35% of increased overbite, and 35.15% of decreased overbite. There were significant relationship between normal and excessive overbite and age and gender.Beside, the frequency of cross bite in the population was 6.3%, which had no significant relationship with age and gender.