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Knowledge of selected respondents about oral health
Barcalová, Barbora ; Hanušová, Jaroslava (advisor) ; Váchová, Alena (referee)
Diploma work with the theme Knowledge of selected respondents about oral health consists of a theoretical and a practical part and it deals with level of awareness about oral health by dental hygiene pacients. The main aim of this work is to provide a summary of information about oral health, free from myths and marketing manipulative techniques through a leaflet which is the product of this work. While creating the educational leaflet the author reflects results of a questionnaire survey which is a research tool of the practical part of the diploma thesis. Based on the answers given in the individual questionnaires, the information brochure is primarily directed to refute the most common misconceptions or beliefs of respondents, and at the same time, it was useful for obtaining information about correct oral care in both dental surgeries and e.g. at schools during lessos of health education. The theoretical part of the diploma work is devoted to basic anatomical and histological description of oral cavity, oral health in general, distinction of the terms gingiva, dental plaque or dental calculus. The hinge part is the chapter devoted to dental hygiene, in which the author deals with both profession of a dental hygienist and means of oral cavity care in the setting of the dental hygiene surgery and...
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Structural and Chemical Aspects of Calcium Phosphate Formation in Tooth Enamel
Kallistová, Anna ; Skála, Roman (advisor) ; Frýda, Jiří (referee) ; Oldak, Janet (referee)
Tooth enamel is the hardest and most resistant highly mineralized inorganic component in mammalian bodies that significantly affects both the life quality and expectancy of an indi- vidual. Its specific qualitative properties are given by the biomineralization process responsible for its formation. In this process the mineralization of hydroxyapatite (HAp), the only inor- ganic phase composing the mammalian hard tissues, is controlled by activity of enamel-forming cells ameloblasts and their products. Over the past years, the studies of enamel matrix pro- teins, their structure, composition and function has become the prevalent field of experimental investigation. However, unique enamel qualities, which enable the teeth to withstand high pressure and stress demands, cannot be accurately assessed without the thorough systematical study of its mineral compound. In this thesis, I focus on the crystallographic and compositional characteristics of enamel hydroxyapatite and their influence on the mechanical properties of teeth. Obtained results are discussed in context of developmental and adaptation dynamics of mammalian species. The main aspect of the work is to extend our knowledge about the protein-mediated mineraliza- tion process from the perspective of inorganic compound and its contribution to the...
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The signs of odontogenesis externally to the prospective functional dentition in the experimental model
Fábik, Jaroslav ; Hovořáková, Mária (advisor) ; Buchtová, Marcela (referee)
6 Abstract The development of the mouse tooth primordium is an important model for studying odontogenesis, as well as general organogenesis. The development of the mouse lower incisor is of remarkable interest. The epithelial anlage of the mouse lower incisor is interconnected with the vestibular anlage via the epithelial bridges. According to some authors, the epithelial bridges represent an area, where the transient rudimentary incisor germ appears. From a morphological point of view, the first sign of ongoing epithelial-mesenchymal interactions during early odontogenesis is the thickening of oral epithelium. From a molecular point of view, it is the expression of the Shh, Eda, Edar, Pitx2, Bmp2, Bmp4 and Dlx2 genes. Except for the transcription domain, representing the proper signalling centre of a developing prospective incisor, a transient transcription domain, localized anteriorly and superficially, appears in the odontogenic zone of the epithelium during early development. The anterior transcription domain originates in the area of epithelial bridges, and according to some authors, from an evolutionary point of view, it corresponds with the signalling centre of the rudimentary incisor germ. The aim of this diploma thesis was to compare the temporospatial dynamics of SHH and EDA protein expression in...
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Creating learning program about dental hygiene using interactive board for Secondary school students
PROSSEROVÁ, Andrea
The theoretical part of this bachelor thesis describes dental care, deals with the anatomy of oral cavity, the most common dental problems and periodontal disease. It also contains methods of teeth cleaning and teeth cleaning tools and describes work of a dental hygienist. The thesis also includes designing an educational programme. The theoretical part also concerns basic terms in education and the importance of motivation. One of the chapters is dedicated to an interactive blackboard which is used for presenting of the programme. The final part of the theoretical part deals with developmental psychology of pupils. The other part of the bachelor thesis is comprised of a research using a questionnaire and designing an educational programme, which is based on information collected from pupils at lower-secondary school. The programme contains instructional videos and thematic games. The programme is a part of a primary prevention of dental disease.
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Proliferace a dynamika tkání během vývoje zubů a jim pribuzných patrových lišt
Rothová, Michaela ; Peterková, Renata (advisor) ; Matalová, Eva (referee) ; Černý, Robert (referee)
My PhD thesis has addressed specific questions regarding cell proliferation and tissue dynamics in three key areas of craniofacial development: during suppression and revitalization of tooth buds that develop in the mouse embryonic dentition as rudiments of lost premolars; during dental papilla and follicle formation of the first mouse molar; and during origin of palatal rugae on the mouse hard palate. By evaluation of cell proliferation, we recorded a change in the proliferation pattern along the cheek region of the mandible between less and more advanced embryos at embryonic day 13.5. Thus during the time period, when the development of the large mouse rudimental premolar primordium (R2) is stopped, we showed that the arrest of the rudiment R2 is caused by exhibiting low rate of cell proliferation and high rate of apoptosis. When Sprouty gene signalling is disrupted, the premolar primordium shows rates of proliferation and apoptosis similar to the growing first molar. The R2 subsequently revitalizes and develops into a supernumerary tooth in front of the first molar. Furthermore, we discovered that the dental mesenchyme is very dynamic tissue during bud and cap stages of tooth development and that the dental papilla of the first molar originates only from a restricted region of the dental...
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Early tooth development of Tabby mice
Smrčková, Lucie ; Peterková, Renata (advisor) ; Černý, Robert (referee)
The developing mouse dentition is a very useful tool to study molecular regulation of odontogenesis and also organogenesis. The embryonic mouse dentition comprises developing functional tooth primordia as well as rudimentary tooth primordia. These rudiments arrest their growth during development and either degenerate or become a part of a functional tooth. Mice with gene defects also allow elucidation of a function of genes, their products and signalling pathways. The protein ectodysplasin is essential for development of ectodermal derivatives - skin, hair, glands and teeth. The Tabby mice have a mutation in the Eda gene, which encodes the protein ectodysplasin, and they display a number of dentition anomalies. Early development of the lower jaw dentition in Tabby embryos has been already morphologically described. As a prerequisite for understanding regulatory mechanisms of odontogenesis in Tabby mice, it is also necessary to map the spatiotemporal dynamics of signalling centres that express Shh in both the rudimentary and functional tooth primordia. The aim of this thesis was to compare the signalling centres based on the Shh expression and its spatiotemporal dynamics in the lower jaw of Tabby and WT mouse embryos. Then the Shh data were correlated with known morphological data to clarify the...
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Morphological variability of the incisor in mutant mice
Lochovská, Kateřina ; Churavá, Svatava (referee) ; Hovořáková, Mária (advisor)
Myš je nejfrekventovaněji používaným experimentálním modelovým organismem pro studium vývoje zubů. Myší funkční dentice obsahuje jeden řezák oddělený od tří molárů dlouhou bezzubou diastemou v každém čelistním kvadrantu. Cílem této práce bylo shrnout poznatky o myší dentici a jejím vývoji se zaměřením na myší řezáky a jejich patologie. Myší řezák je díky svým vlastnostem jedinečným zubem. Charakteristickou vlastností hlodavců jsou právě kontinuálně rostoucí řezáky. Tyto řezáky jsou pokryté sklovinou pouze na labiální straně. Lingvální povrch je tvořen pouze dentinem. Toto je spojeno s asymetrickou abrazí. Nicméně je také častým cílem mutací, ať už v podobě delece nebo jiné modifikace genů. Tyto mutace dentálních signálních drah jsou studovány na mutantních myších jako jsou například Tabby myši, Sprouty nebo Small eye (Sey) mutantní myši a mnoho dalších. Některé mutace jsou homologní k lidským onemocněním. Například X-vázaný tabby (Ta) syndrom u myší je považován za homolog hypohidrotické ektodermální dysplásie (HED) u lidí. Tato mutace napadá velikost řezáku, jeho tvar a pozici stejně jako cytodiferenciaci. Dále se může objevit hypodoncie, anodoncie nebo nějaké morfologické změny napadající ostatní existující zuby. Abnormality v počtu, velikosti a tvaru zubu byly dobře zdokumentovány v lidské...
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Tooth Clasification on Jaw 3D Polygonal Model
Hulík, Rostislav ; Španěl, Michal (referee) ; Kršek, Přemysl (advisor)
This document discusses a solution for tooth classification on 3D jaw polygonal model. Sequentially, I describe techniques for representation and browsing of polygonal model saved in computer memory, techniques for dental curve detection and finally, creation of surface representing approximated tooth plane. After it, I analyze possibilities of height map creation from jaw model which helps in tooth classification in the scope of entire dental curve context and, as a last step, final detection of these teeth in two dimensions. In the same time, I discuss 3D polygonal model segmentation for border extraction, which separates teeth from the rest of the model. In the end of proposed algorithm, I join these two runs into one final detection and classification process of separate teeth, so presented application can automatically indentify and classify teeth to corresponding names and positions with a minimum user interaction. In a second half of this document, I describe implemented solution. According to primary goal, I propose these techniques forcefully to multiplatform approach and maximal user comfort.
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Tooth Detection on Jaw 3D Computer Polygonal Model
Hulík, Rostislav ; Španěl, Michal (referee) ; Kršek, Přemysl (advisor)
This document discusses a concept and implementation of algorithms for teeth detection on 3D polygonal jaw model. At first, I describe possible shape detection techniques on three dimensional computer model, including utilization just in my case. After it, I analyze filtration problems of obtained model segments in order to reliably separate regions of tooth-arch from the rest of jaw. I included all these pieces of knowledge into a final application. Here, it is possible to choose from two user interfaces, first, classic user interface which demonstrates possible utilization in real world and second, testing interface which demonstrates functions of each detection and filtration method used in program and their effect on detection. Application is written in C++ language in development environment of MS Visual Studio 2005 and compiled with MS VS internal compiler. Tested was under MS Windows XP and MS Windows Vista OS.
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Positive displacement pump design
Poprac, Martin ; Sluše, Jan (referee) ; Klas, Roman (advisor)
This bachelor work is about basic types of positive displacement pumps, focused on their design, advantages and disadvantages and their applications. In the second part of the work we are focused on the possibilities of reducing noise levels of some types of positive displacement pumps. The whole work consists of many pictures and diagrams for the better understanding.
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