نتایج جستجو برای: dental study model
تعداد نتایج: 5602329 فیلتر نتایج به سال:
abstract: mineral scaling in oil and gas production equipment is one of the most important problem that occurs while water injection and it has been recognized to be a major operational problem. the incompatibility between injected and formation waters may result in inorganic scale precipitation in the equipment and reservoir and then reduction of oil production rate and water injection rate. ...
background: the aim of this study was to compare the skeletal and dental changes of a toothborne (hyrax) and a bone-borne (smile distractor) expansion devices using three-dimensional model of a human skull. materials and methods: a finite element model of human skull was generated using data from 3-d ct scans of an 11-year-old female child. then a hyrax expander (tooth-borne appliance) and smil...
the evaluation of plaque and tooth decay represents the oral health status of society. lack of oral hygiene, can adversely affect the health of students. this study was designed with the aim to determine the oral- dental health status of the first grade guidance students in hamadan: using health belief model (hbm). this was a descriptive- analytical study which was conducted on 268 students of ...
Introduction: A study model is a precise three dimensional replica of patient’s dentition and plays an important role in treatment planning. Many digital multi-media applications have become available to the clinician and his or her staff to facilitate standard procedures in practice and management. The aim of this study is to evaluate reliability and validity of dental measurement made on dig...
abstract foreign and iranian cultures are far distinct in the constraints imposed on writing and translating for children, since the iranian literary system is mainly concerned with cultural and religious instructions which lead to manipulation of translated texts. this study sought to identify the cultural and social constraints and norms which determined the strategies applied in the transl...
attempts have been made to study the thermodynamic behavior of 1,3 butadiene purification columns with the aim of retrofitting those columns to more energy efficient separation schemes. 1,3 butadiene is purified in two columns in series through being separated from methyl acetylene and 1,2 butadiene in the first and second column respectively. comparisons have been made among different therm...
Background: The purpose of this study is to present an integrated model for the Iranian general dentistry curriculum. Methods: In this study, the qualitative method of focal groups was used. First, using library studies and analysis and interpretation of the resulted information, possible types of integration in the dental curriculum and real experiences of some of the world's leading universit...
some researches made in the field of agency problem issue, deal with the role of control systems regarding owners and managers. in this research the relationship between the two control mechanisms, namely the voluntary disclosure (external control mechanism) and outside directors (internal control mechanism), which are reductive of agency problems, has been studied. for this reason, a sample ...
Background and Aim: Mothers are the main key to improving the oral health of children, and their beliefs in this area are very influential on the way children's oral care works. The aim of this study was to determine the status of knowledge, attitude and performance of mothers about the preventive behaviors of dental caries in 4-6 year old children based on integrated behavioral model. Materia...
Introduction: Some inter-proximal areas of teeth are not available to brushing thus dental flossing for eliminating plaque is needed. The aim of this study was to assess the determining factors based on trans-theoretical model (TTM) among high school students. Methods: This descriptive, analytical, cross- sectional study was conducted during April and May 2012. 653 high schools students of P...
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