No abstract

Background: Although new approaches for application of magnetic resonance imaging (MRI) in dentistry have been promising, the presence of dental materials in the oral cavity represents a major obstacle to generating quality MRI data. The resulting artifacts can adversely affect diagnostic accuracy of oral and maxillofacial conditions. Objectives: This study aimed to detect and assess artifacts caused by metallic and non-metallic dental materials in MR images. Materials and Methods: Nineteen commonly used dental materials were used in an in vitro assay. An empty cube-shaped phantom

Background: Radiological examinations expose the patient to the adverse effects of ionizing radiation, which is more severe among developing children. This can cause excessive and unreasonable fear and anxiety for parents and even disrupt the treatment process. This study aimed to evaluate the parents’ knowledge about dental radiographs for children referred to dentistry, and to assess the relevant factors. Methods: The present study is a cross-sectional analytical study examining parents of children referred to dental clinics from October 2019 to April 2020. The required information included demographic information, and nine statements for assessing parents’ level of knowledge. One-way analysis of variance (ANOVA), independent t-test, and linear regression were used to analyze the data. Ward’s cluster analysis method with a squared Euclidean distance was adopted to include the background and demographic variables. Results: A total of 108 parents of children referred to Ilam dental clinics – including 69 females (68.3%) and 32 males (31.7%) in the 24-51 age range, participated in this study. Among the studied variables, the level of educational attainment of the parents had a highly significant influence (P<0.01) on their knowledge of pediatric radiography. Furthermore, parents holding bachelor’s degrees or higher with an average score of 5.35 had more heightened awareness of radiography than those in other educational groups. Conclusions: Examining the parental radiographic knowledge revealed significant differences among three groups of parents with educational attainment in favor of those with higher educational achievement. In general, three biographical variables, namely age, gender, and household size were found to be less influential. Therefore, the dentists should learn about the educational attainment of the parents and provide them with the required information on treatment accordingly. Due to the relatively poor knowledge of the parents about children’s dental radiographs, it is recommended that plans be developed for raising the parental awareness of the issue in order for reducing their unreasonable fears which may create a burden for dental treatment procedures.