|
|
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.
|
|
| |
|
|
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.
|
|
|
On the design and technology of a test bench for hydraulic engine
Duret, Mikhaël ; Sliwková, Petra (referee) ; Píška, Miroslav (advisor)
Every building needs to be built on solid foundations. Hydromills are machines used to make it possible in excavating very hard ground. This project is about the creation of a test bench for hydraulic motors called here hydromill motors. Excavating is really soliciting for the equipment and leads to many breakages that is why the company asked for the creation of a test bench to measure the lifespan and the reaction of their motors to the forces acting during the cutting. It is complicated to copy the forces and shocks happening in reality because they are very high with quick variations, also depending on the ground. This test bench will have to create high variable loads acting on several directions, a high counter-rotation torque corresponding with the resistance of the ground to the cutting, as well as angular and longitudinal shocks to simulate the hits on the rocks by the teeth.Furthermore the measuring of the internal pressure and hydraulic flow plus the deformations of the main parts of the motors has to be enable by the test bench. The main part of this internship was devoted to the choice of the technical solutions to realize the functions of the test bench as well as the research of companies able to create the test bench elements. Many of them are not conventional due to the high requirements and have to be manufactured individually. In the end an evaluation of the costs and production will give all the information to the company to decide to manufacture it.
|
|
|
The creation of an educational program focused on dental hygiene for children at the 2nd grade of elementary school in České Budějovice.
VANIŠOVÁ, Hana
The bachelor thesis is focused on dental hygiene of children attending second grade of elementary school. Integral part of the thesis is an educational video program created for designated age bracket. The main goal of the thesis is an overall knowledge improvement of target audience in dental hygiene and highlighting of an oral hygiene importance in order to minimize the risk of dental carries and relation to a general health condition. The theoretical part is focused on children´s dentistry, dental anatomy and prevalent periodontal diseases like dental caries, gum inflammation or juvenile periodontitis. Considerable attention was paid to mechanical and chemical means and techniques of cleaning tooth. Next the theoretical part deals with primary prevention which is very important to avoid irreversible changes in oral health. Also influence and importance of proper nutrition for a good dental condition is mentioned. The practical part is formed on a questionnaire survey basis which was needful to map current dental hygiene level. Gathered information was essential for questionnaire processing, resulting in form of graphs and basis for content of the educational program. The main thesis aim is to stress necessity of a regular and a systematic dental care.
|
|
|
Dental hygiene of pre-school children in the kindergartens in the district Jindřichův Hradec
ŠTONCNEROVÁ, Helena
The theme of dental hygiene of preschool children is a very current issue nowadays as ever growing importance is being ascribed to it. Regular and thorough removal of microbial dental plaque using appropriate technique plays an irreplaceable role in the prevention of dental caries, along with regular appointments with a dentist. The baccalaureate paper briefly maps the history and status quo of dental medicine, focusing primarily on the state of oral health of preschool children and prevention of dental caries. The theoretical chapter contains a description of teeth, the difference between temporary and permanent dentition, correct tooth cleaning technique, the frequency of tooth cleaning, and dental hygiene aids. The objective of the baccalaureate paper was to find out how and how often the nursery schools in the former district of Jindřichův Hradec attend to the dental hygiene of their pupils. Whether they are acquainted with the correct technique of tooth cleaning, the right grip of the tooth brush, and whether the subject of dental hygiene forms part of specialized lectures in these nursery schools were themes of my interest, too. Another part of my paper contains a draft of an educational program about dental hygiene, based on the results of a questionnaire that was part of my survey, with the aim of devising methodological instructions for preschool teachers as a way of promoting the adoption of proper habits in dental hygiene amongst preschool children.
|
|
|
Eating disorders from the perspective of the general public
MARKOVÁ, Jiřina
This thesis deals with the influence of a vegetarian diet on dental status in adults. The importance of nutrition on dental status in adults is controversial and therefore this thesis seeks to shed light on the issue of nutrition with regard to dental status. A major role is played by the possibility of enjoying quality of life in older age based on early prevention and experience-those habits from the time before the age of fifteen years of one's life. The theoretical part focuses on the anatomy and physiology of the oral cavity and the influence of diet on dental status. The text lists the possible causes, treatment, diagnosis and prevention of disease in follow-up on the diet of an individual company. It goes on to discuss ways of improving the state of the teeth when receiving a vegetarian diet. The practical part is to determine how the vegetarian diet is reflected in the state of adult teeth, how many individuals are consuming, so if there is a demonstrable impact on the dental status when receiving a vegetarian diet. The practical part was carried out using questionnaires, interviews with specialists in dental hygiene and a vegetarian diet. The questionnaires were processed in the graphics section.
|
|
|
Dental traumatology children of younger school age and the importance of oral hygiene after these situations
KRÁLOVÁ, Stanislava
Set of teeth in children younger school age going through big changes, and any unwanted interference with healthy dentition in has an impact on the further development of the teeth. When the accident shall be decided by an early and correct diagnosis of injured tissue, suitably elected procedures, periodic inspection of the injured area and thorough dental hygiene, which affects the process of therapy. In the theoretical part describes the development of the dentition and the differences between the temporary and the permanent teeth, the analysis of the individual injuries, their causes and consequences of the most common injuries of the teeth. The thesis deals with the prevention of accidents and the protection options from further injury. Part of the theoretical part is a description of dental equipment, their methods of use and technique of brushing your teeth. The practical part deals with the status of the denture hygiene in children before and after the injury. To determine the data was used a questionnaire survey. The aim of the work was to define guidelines for dental care after an accident and to create educational material for younger school age children.
|
|
|
The role of primary and secondary prevention and its impact on reducing the occurence of teeth diseases of younger school age children
HANUSOVÁ, Markéta
This bachelor thesis comprises of theoretical part which refers to anatomy and physiology of the oral cavity and informs of children periodontal diseases of oral cavity. Furthermore it deals with the pathogenesis of children dental caries and subsequent prevention and therapy of the dental caries. The primary and secondary prevention, which has big influence on reduction of dental apparatus diseases, is also included in the theoretical part. The primary prevention shows methodology and techniques of children tooth cleaning, the possibilities of fluoridation, and the right nutrition. The secondary prevention includes the hygienic and gingival indexes and CPITN index. The tools necessary for a dental hygiene have also been considered in this thesis. The practical part is focused on the awareness of younger school aged children in the area of primary prevention with the use of questionnaire method. An educational program was put together and training was made. The evaluated questionnaires were processed into graphs and tables along with the verbal commentary, which shows the awareness regarding the primary prevention of younger school aged children.
|
|
|
Educational programme of dental care for primary school
SCHREIBEROVÁ, Tereza
The bachelor thesis is focused on dental hygiene of children attending primary school; the part of the thesis is creating tutorial and putting it into practice. At present, there is more and more talk about the importance of dental hygiene. A lot of people are suffering with dental caries. Oral health is related to the overall health of individuals. Therefore, the thesis focuses on children at the primary schools. At this age, it is very important to get good habits. The theoretical part of the thesis deals with dentistry and its parts, dental anatomy, periodontal disease, nutritional advice, prevention and dental hygiene?s tool and dental problems in childhood. Child patient requires a different approach of care than an adult. The practical part is formed on the basis of a questionnaire survey, where the questionnaires were the base for the graphic part. Results of survey are indications of the level of dental hygiene and knowledge about it.
|
guest ::
