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Evaluation of tooth preparation using Er: YAG laser in comparison with other preparation methods
Bučková, Michaela ; Dostálová, Taťjana (advisor) ; Racek, Jaroslav (referee) ; Mazánek, Jiří (referee) ; Smrčka, Pavel (referee)
Er: YAG laser is a new method of preparation that promises gentler and more accurate dental treatment. Its specific characteristics is large absorption of the beam in the water and a small absorption in the tissue without the thermal effect. Therefore the treatment is safer and effectiver. The research has the aim in its theoretical - cognitive part to assess its advantages in comparison with treaditional treatment method - drill. As an essential element will be evaluation of caries lesion in vitro and in vivo. The size of the cavity will be judged on, the shape of developing a smear layer and retention surface in relation to the filling and the . The extracted teeth will be scanned in electronic microscope to assess the formation of contact and non-contact preparation, focusing on the shape and size of the prepared lesion in relation to modern filling materials - low viscosity composites. Extensive research supported by the Ministry of Health (IGA : 9991-4 and 13351-4) that focuses on the the use of various therapeutic methods in the treatment of special needs patients. Dental treatment of a special needs patients is expensive and time-consuming than conventional dental treatment. Therefore, clinical application of theoretical cognitive part will create a electronical support system for the...
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2D and 3D models based on patients temporomandibular joint diseases
Hliňáková, Petra ; Dostálová, Taťjana (advisor) ; Mazánek, Jiří (referee) ; Hrušák, Daniel (referee)
The temporomandibular joint (TMJ) is one of the most complex joints in the body. Its harmony is established by coordination between occlusion, muscle, and joint. Changing lifestyles, decreasing physical activity, which is increasing the number of degenerative joint diseases of various etiologies, and certain dental procedures, are increasing the number of patients complaining of pain or other problems in their temporomandibular joints. Estimated 42% of the population is affected and 2-5,5 % is seeking treatment. Temporomandibular disorders (TMD) are clinical problems that involve the masticatory muscles, the temporomandibular joints and associated anatomical structures. Typical signs and symptoms of TMD are facial pain, clicking or crepitation of the TMJs, limited jaw opening capacity and deviation in the movement patterns of the mandible. The basis of successful treatment is a determination of the patient's causal problems. The analysis is based on the model of the ideal biomechanics of TMJ. The rehabilitation of temporomandibular joint disorders needs comprehensive long-term therapy based mainly on physical, surgical, and prosthetic treatment. Detailed knowledge about the function and morphology of temporomandibular joint are necessary for clinical evaluation and treatment of temporomandibular...
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Dental care of patients after surgical therapy of inborn oro-facial clefts 3D technologies in diagnostics and therapy of cleft patients
Kašparová, Magdaléna ; Dostálová, Taťjana (advisor) ; Mazánek, Jiří (referee) ; Roček, Miloslav (referee)
Patients with orofacial defects, inborn or acquired, isolated or in combination with other handicaps in syndroms, suffer from various problems including psychological problems. Morphological changes within these handicaps burden not only the patients themselves, but also their families. Among the main problems are difficulties with feeding, speech or breathing. Anomalies in number or position of deciduous and permanent teeth, development of jaws and dental arches are often present. Multidisciplinary aproach is necessary when solving all of the tasks and the multidiciplinary team consits of experts from field of plastic surgery, foniatry, speach therapist, dentist and oral surgeons. Surgical therapy involves early primary reconstruction of cleft lip and causes necessity of very detailed therapy planing and evaluation. It is very important to create systematic aproach to dental care including valuace diagnostic methods. In the work presented there will be variol methods of diagnosis and evaluation of the treatment introduced with the aim of evaluating modern methods including 3D printing and digital technologies and a valid alternative to traditional methods (plaster casts). Key words: 3D printing, cleft lip and palate, dentistry
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Dental status in handicapped patients
Chleborád, Karel ; Dostálová, Taťjána (advisor) ; Racek, Jaroslav (referee) ; Hanzlíček, Petr (referee)
The information in the medical records serve many purposes: they can be used for diagnosis and therapy, medical documentation contains information that can be the basis for financial authorities for treatment or for pumping reimbursement from health insurance. The data can be used in statistics and other scientific purposes. The aim of study is to verify the simplicity of data process implementation and time of data storing for modification of classical paper WHO dental card, lifetime dental EHR controlled by keyboard and lifetime dental EHR controlled by voice. All three methods were applied on 126 patients. At first the patients were inspected by a standard technique (communication between dentist and nurse) and the data recorded into the paper WHO dental card. The same person recorded all data to lifetime dental EHR using keyboard and using voice. Then we compared the time, which was needed for recording the data using these three methods. Using Friedman test we found very significant differences in time of recording among three methods (p<0.001). We can see that the paper WHO dental card was recorded quickly, but its rise due to missing electronic form is difficult. Times for recording data using keyboard or voice in lifetime dental EHR were not significantly different. The clinical practice...
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Diagnostics and therapy of selected head and neck malignancies and premalignancies with photo nic medicine
Vlk, Marek ; Mazánek, Jiří (advisor) ; Dostálová, Taťjána (referee) ; Dundr, Pavel (referee)
Diagnostics and therapy of selected head and neck malignancies and premalignancies with photonic therapy (PDT) Introduction: Lasers are used widely in the modern-day medicine, including the head and neck surgery. Our objective was to evaluate the use of laser intervention in leucoplakia treatment, during the laser interstisial hyperthermia (LITT) and in the modification of PDT. Materials and methods: In all the indications, the diode laser emitting at the wavelength 980 nm was used. Altogether we treated 76 leucoplakia lesions in 66 pacients by laser vaporization. LITT was applied in 32 oncological patients with more-advanced-stage head and neck tumors (9 parameters were observed). 74 BCC (sBCC/nBCC) lesions in 33 pacients were treated with modified PDT. We observed not only the objective aspects (the efficacy of the treatment) but also the subjective therapy evaluation by the patients themselves. Results: The efficacy of the leucoplakia treatment was 94,7 %. LITT influenced positively all the 9 observed parameters. The resultant efficacy of the PDT was influenced positively by the laser intervention too. The success rate of the combined method was almost 98 % for sBCC and 92 % for nBCC (measured by the number of lesions). The laser intervention was tolerated very well by the patients. Conclusion: We...
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System to support decision making in dental implantology - quality of life of patients with dental implants
Kříž, Pavel ; Dostálová, Taťjána (advisor) ; Mazánek, Jiří (referee) ; Zvárová, Jana (referee)
Title: System to support decission making in dental implantology - quality of life of patients with dental implants Author: MUDr. Pavel Kříž Department: Paediatric Stomatology of 2nd Medical School and Faculty Hospital Motol, V Úvalu 84, 150 06 Prague 5 Supervisor: Prof. MUDr. Taťjana Dostálová, DrSc., MBA Supervisor's e-mail: tatjana.dostalova@fnmotol.cz Dental implants are the method of choice in the treatment of missing tooth/teeth replacement. Implant therapy must be preceded by a detailed examination and the overall treatment plan. As an aid for decision-making for dentists was created decision-making scheme, which gradually, logically and schematically guides the dentists in this particular situation. Health is closely related to the quality of life. Our work evaluates the oral health-related quality of life (OHRQoL) of patients with dental implants. The aim of our study was to determine whether treatment with a dental implant(s) improve(s) OHRQoL. We created a questionnaire to determine the quality of life before and after implantation. In our study, we evaluated only patients who were treated by the only one implantological system to eliminate the influence of other systems on the quality of the results of the study; we evaluated a total of 297 implants. It was assessed a total of 97...
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Voice controled electronic health record in dentistry
Hippmann, Radek ; Dostálová, Taťjána (advisor) ; Hanzlíček, Petr (referee) ; Racek, Jaroslav (referee)
Title: Voice controlled electronic health record in dentistry Author: MUDr. Radek Hippmann Department: Department of paediatric stomatology, Faculty hospital Motol Supervisor: Prof. MUDr. Taťjana Dostalová, DrSc., MBA Supervisor's e-mail: Tatjana.Dostalova@fnmotol.cz This PhD thesis is concerning with development of the complex electronic health record (EHR) for the field of dentistry. This system is also enhanced with voice control based on the Automatic speech recognition (ASR) system and module for speech synthesis Text-to- speech (TTS). In the first part of the thesis is described the whole issue and are defined particular areas, whose combination is essential for EHR system creation in this field. It is mainly basic delimiting of terms and areas in the dentistry. In the next step we are engaged in temporomandibular joint (TMJ) problematic, which is often ignored and trends in EHR and voice technologies are also described. In the methodological part are described delineated technologies used during the EHR system creation, voice recognition and TMJ disease classification. Following part incorporates results description, which are corresponding with the knowledge base in dentistry and TMJ. From this knowledge base originates the graphic user interface DentCross, which is serving for dental data...
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Evaluation of the stability of osteosynthesis of mandibular ramus sagittal split osteotomy
Nieblerová, Jiřina ; Mazánek, Jiří (advisor) ; Dostálová, Taťjána (referee) ; Bulík, Oliver (referee)
Orthognatic surgery deals with congenital and acquired dentoalveolar or skeletal deformities of the face. An unfavourable downward rotation of a mandible and posterior vertical maxillary excess cause an anterior open bite, which is characterized by excessive anterior facial height in the lower third, a gap between the incisors in maximal occlusion and a large mandibular angle. Osteotomy (mainly Le Fort I osteotomy or bilateral sagittal split osteotomy of the mandibular ramus - BSSO), ostectomy or distraction osteogenesis are performed to correct the orthognatic deformities. Osteosynthetic materials based on titanium or bioresorbable materials are used in the form of miniplates with monocortical screws, or bicortical screws are utilized to fix the bony fragments. Stability of the new jaws position is the main criterion for success. Relapse causes a loss of occlusion and consequently functional and aesthetic disorders. Relapse consists of skeletal and dental factors. Skeletal relapse is usually divided into early and long-term relapse. BSSO with counter-clockwise (CCW) rotation of the occlusal plane alone was traditionally considered to be the least stable treatment method. Some authors suggest the use of two miniplates on each side of the osteotomy, but we have not found scientific proof of the...
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Using the Learning Management system in the university environment: Applications for medical informatics and dentistry
Feberová, Jitka ; Dostálová, Taťjana (advisor) ; Ohlídková, Blanka (referee) ; Dušek, Jaroslav (referee)
This dissertation pursues the possibility of increasing quality of teaching students in medical fields using LMS Moodle. It is based on years of experience with designing of e-learning courses at the Charles University. LMS Moodle uses knowledge of computer-aided or computer-controlled teaching at universities. According to an analysis of the changing situation at universities that is characterized by increasing number of students, also by creation of bachelor degree courses and unideal teaching financial security on the one hand and the significant developement of ICT on the other. As part of this work the usability of ICT in medical study fields was solved in subjects "Medical Informatics" , " Prosthetic materials and technology" and " Gnathology". In the last year (2010) LMS Moodle was started for a whole network of medical faculties that cooperate on the creation and access to electronic learning materials MEFANET (Medical faculty's network since 2007). Analysis of the central installation operation of Charles University's LMS Moodle for teaching from 2004 to 2010 gives a good picture of the aspects associated with the operation LMS Moodle, which would help assisting in management of LMS Mooodle Mefanet. The tracking of an e-learning course's development within the central Moodle installation at the...
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Properties of prosthodontic materials
Vavřičková, Lenka ; Dostálová, Taťjana (advisor) ; Bartoňová, Marie (referee) ; Zicha, Antonín (referee)
Summery Properties of Prosthodontic Materials Background: Dental ceramics and dental alloys have been found to be the most suitable material for prosthetic restorations. The biological inertness of ceramics is considered to be the best among all dental materials. The aim of this study was to determine the level of corrosion and cytotoxic influence on the cell line of mouse fibroblasts of selected dental materials. Methods: In total, 11 types of ceramic materials and 6 types of dental alloys have been chosen for the analysis. The composition of ceramic materials was qualitatively evaluated by X-ray spectrometry. For evaluation of a corrosive behaviour in vivo, presence of released ions in saliva of tested individuals by mean GT-AAS was valuated. For evaluation of a corrosive behaviour in vitro, leaching in hydrochloric acid was used. Extracts were analysed by mean ICP OES and ICP MS. The cytotoxic influence of the materials on the cell line of mouse fibroblasts NIH 3T3 was monitored (direct contact test, extract test). Results: The study of dental alloys corrosive behaviour in vivo determined, that chromium release depends on the dental alloy composition and the time after the denture delivery. The nickel release depends only on the time of delivery. In extracts, measurable amounts of sodium, magnesium,...
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