STATEMENT OF PROBLEM Inadequate tooth brushing and inappropriate oral hygiene can lead to dental caries, the most common chronic diseases of childhood with several side effects. OBJECTIVES To evaluate factors affecting on preschool children's oral hygiene and tooth brushing in Shiraz, Iran. MATERIALS AND METHODS In this cross-sectional study, we selected 453 children registered in Shiraz ki...

background and aims. gingival recession (gr), a common problem in periodontium, is associated with various etiologic factors. there is controversy over the role and importance of these factors. the aim of this study was to evaluate the etiologic factors of gr in a group of subjects in northwest iran. materials and methods. in this case-control study, patients referring to a university clinic (1...

Titanium and its alloy are known as important load-bearing biomaterials. The major drawbacks of these metals are fibrous formation and low corrosion rate after implantation. The surface modification of biomedical implants through various methods such as plasma spray improves their osseointegration and clinical lifetime. Different materials have been already used as coatings on biomedical implan...

background: oral and dental caries are the most prevalent diseases in the world. the aim of this study was to determine the predictors of oral health care in adults based on health belief model in isfahan, iran.   methods: in this cross-sectional (descriptive and analytical) study on 274 patients from the school of dentistry, isfahan university of medical sciences were selected by a simple rand...

The Norilsk ore district is one of the world leaders in production platinum metals. Long-term research focused on detection sulfide platinum-copper-nickel ores contributed to accumulation a large volume scientific material geology and mineralization area. Despite this, issue composition initial melt for ore-bearing intrusive complexes its degree enrichment with noble metals remains open. Intrus...

Cravy Brush is an interactive toothbrush attachment that helps young children (3-8 years old) develop a daily habit of brushing teeth. The attachment displays an interactive game that provides real-time visual and auditory feedback. In addition to feedback, Cravy Brush also provides virtual rewards when children brush properly. Alarm feature calls for children to brush their teeth twice a day a...

Efficacy of radiotherapy treatment depends on the specific characteristics of tumorous tissues. For the determination of these characteristics, clinical practice uses Dynamic Contrast Enhanced (DCE) Magnetic Resonance Imaging (MRI). DCE-MRI data is acquired and modeled using pharmacokinetic modeling, to derive per voxel a set of parameters, indicative of tissue properties. Different pharmacokin...

The field of Information Visualization is concerned with improving with how users perceive, understand, and interact with visual representations of data sets. Immersive Virtual Environments (VEs) excel at providing researchers and designers a greater comprehension of the spatial features and relations of their data, models, and scenes. This project addresses the intersection of these two fields...

The Context Lens (CL) is a focus+context visualization and navigation tool particularly suited for navigating large documents, or collections of documents. Context Lenses have been applied successfully to navigating Web pages, video collections and slide presentations. In this paper we discuss our experiences both with linear as well as with hierarchical Context Lenses. We focus on the use of i...