Two hundred eight patients, who applied to the Department of Pedodontics, Dental School, Dicle University between 1995 and 1998, were evaluated in terms of permanent teeth fracture. The aim of this retrospective study was to investigate the probable causes of the trauma, the effects of age and gender on dental trauma, prevalence of fracture types, and distribution of fracture type according to arch. It was observed that the falls or collisions were the main causes. It was also determined that the age group most frequently suffering fractures was ages 9 to 11 years. The majority of the patients were male. The enamel-dentin-pulp-type fracture and those causing the tooth to become nonvital were the most prevalent, and the majority of the fractures were observed in maxillary central teeth.
Background: Polyethylene fibre-reinforced composites (FRCs) have been under development for some time. However, there is a lack of data on the clinical performance of these restorations. The purpose of this descriptive study was to evaluate the clinical performance of endodontically treated anterior teeth restored using polyethylene FRCs. Methods: Eighty-seven endodontically treated anterior teeth in 65 patients were restored with polyethylene FRCs. The restorations were placed by three operators. The patients were recalled for examinations every year for up to three years. The restorations were evaluated using modified Ryge and USPHS criteria. Results: A statistical analysis showed no significant difference in marginal irregularity, marginal discolouration, surface texture, wear ⁄ anatomic form, fracture and retention, radiographic appearance, or debonding between the baseline and three-year results. Conclusions: Based on our three-year examination results, polyethylene FRC restorations appear to be clinically successful.
The aims of this study were to evaluate the prevalence and risk factors of dental caries, and to determine whether there is any relationship between a fluoride-releasing adhesive material and the development of dental caries in the first year in children with insulin-dependent diabetics (IDDM). The average age of the subjects was 4-15 years, and they had been suffering from IDDM for at least 2 years. The DMF/df(t) indices of 70 patients were calculated and total HbA1 (%) (glucose levels of blood) values were recorded from the medical records after clinical examination. The mean DMF/df(t) values of poorly controlled subjects (HbA1 values over 13%) were significantly higher than those of moderately (HbA1, 10.0-12.9%) and well-controlled (HbA1 values, <10%) subjects. The levels of salivary mutans streptococci (MS) and lactobacilli (LB) and the pH of paraffin-stimulated whole saliva were measured in diabetic patients. Salivary MS and LB scores of the poorly controlled subjects were significantly higher (2.5+/-0.7 and 2.1+/-1.0) than those of the moderately (1.6+/-0.9 and 1.1+/-0.8) and well-controlled (1.2+/-1.0 and 0.8+/-0.8) subjects. The mean pH values among all subjects were not statistically significant. All dental caries were restored with a fluoride-releasing adhesive material. At the end of the first year, no new caries or lost restorations were observed in these patients. Moreover, the rate of MS in the poorly and moderately controlled subjects was considerably reduced. However, no significant statistical reduction of MS was determined in the well-controlled subjects. The level of lactobacilli in the poorly controlled, moderately controlled, and well-controlled subjects was reduced.
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