Czech Dental Journal, 2005 (vol. 105), issue 1
Articles
Are We Able to Take Care of Our Own Dentition? Results of Examination of Oral Hygiene in the High-School Population
P. Závodský, P. Bednář, S. Ságlová, D. Černý
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 3-6 
The authors refer to clinical survey performed among high school students. The aim of this study was to evaluate the quality of home oral care. Set of 316 students were examined with questionnaire and clinically. Almost all of them suffer from gingivitis. The plaque removal is made almost only with toothbrush and toothpaste, performed twice a day. Interdental cleaning is performed only by 18% of students. The results show, that only exceptionally they are able to remove the plaque from their teeth correctly (about 10%) to prevent plaque dependent diseases.
Molecular Genetic Identity of Blood and Oral Isolates of Viridans Streptococci
Z. Broukal, J. Dušková, T. Janatová
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 4-8
The strain and clonal identity of blood and oral isolates of viridans streptococci (S. salivarius, S. mitis, S. mutans and S. sanguis groups) has been tested in a group of 30 patients with positive haemocultures. Isolates were preliminarily identified by means of biochemical properties and then genotyped by means of the PCR (spacer 16S and 23S rDNA) and AP-PCR. Strain identity of blood and oral isolates has been proved in S. salivarius in 2 of 4 cases, in S. mitis in 8 of 10 cases, in S. mutans in 2 of 2 cases and in S. sanguis in 15 of 16 cases. Clonal identity of blood and oral isolates has been proved in 50 % of isolates. Oral microbial flora is...
Titanium Disc Modified with Hydroxyapatite and Zirconia Does not Reveal Signs of Cytotoxicity
Z. Teuberová, M. Seydlová, T. Dostálová, M. Jelínek, B. Dvořánková
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 7-11
The paper deals primarily with the study of biological properties of a model of implant covered with a thin layer of hydroxyapatite with an intermediate layer of zirconium. Cytotoxicity was evaluated by direct cultivation with mouse and human fibroblasts. A physical test using X-ray diffraction confirmed that the film is composed of crystalline hydroxyapatite. The evaluation of the cytotoxicity test and a comparison with controlled samples cultured in parallel in vitro made it possible to conclude that the material is not cytotoxic audit is suitable for further experiments in more detail.
Measurement of the Shear Bond Stability of Different Generation Dental Adhesives
R. Vrbová, L. Himmlová, D. Houšová, E. Tauferová, T. Bartoň
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 9-14
The study was aimed at comparison of adhesion of 4th to 6th generation of dentin adhesives by measuring the shear bond strength according to method ISO/TR 11405:1994(E). The study compared the adhesion systems Prompt L-Pop (6th generation), Excite and Prime & Bond NT belonging to the 5th generation, All Bond 2 from the 4th generation of adhesive and Evicrol Dual Bond, which belongs to 2nd generation of adhesives served as a control material. The etching of dentin was performed by the recommended conditioner based of phosphoric acid with the exception of Prompt L-Pop, in the case of Excite the...
Growth of the Stabilized HeLa Cell line in Chromium-Cobalt Extract of Surface - Layered Titanium Nitride and Zirconium Nitride
P. Prachár, J. Vaněk, S. Bartáková, V. Březina
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 12-14
The materials used recently in dental implantology are exclusively made of titanium alloy. This is reflected in a difficult processing of the material.Preparation and economic point of view are also very demanding. Our aim was to find a material with high physicomechanical and biological properties. Our selection was an alloy of chromium and cobalt that exhibited better physical properties than titanium alloy. Biological properties were maintained by a layering of titanium nitride and zirconium nitride on the cromium-cobalt alloy. The material with surface - layered structure was biologically tested. The first test was a cell growth test. The study...
Bonded Amalgam Filling - Part II: Clinical Evaluation after 7, 8 and 9 Years
E. Ložeková, Z. Mach
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 15-19
Clinical evaluation of quality of marginal occlusion of bonded amalgam filling and its comparison with a classical amalgam filling after seven, eight and nine years since it was made follows up the previous laboratory and clinical observation of bonded and classical amalgam fillings, respectively. The results of evaluation after two, four, five and six years since these fillings were made have already been published.At the beginning of the study (in 1994), a total of 137 fillings were made, 75 of them bonded and 62 control amalgam fillings of 1st and 2nd class according to Black in lateral segment of dentition in 21 patients. Clinical evaluation...
Treated by Stomatology Patients in the Cooperation with Anesthesiologist
J. Vráblová, Z. Halačková, M. Svobodová, J. Kuklová
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 15-18
The authors evaluate a group of patients treated by one day sanation with previous anesthetic treatment. The group evaluated from the point of view of dental diagnosis, basic general disease and the need of anesthesiologic pretreatment before dental treatment. The results show that close cooperation between dentist and anesthesiologist is necessary.
Corrosion Resistance of Titanium in Dentistry Applications
T. Hora, L. Joska, E. Gojišová
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 20-25
Titanium and its alloys is used in dentistry for excellent mechanical and the physical characteristics with high corrosion resistance and it seem to be one of the most appropriate materials for dental use at all. On the contrary to precious alloys, its suitable corrosion quality is gained throughout the process of passivation, i.e. formation of thin oxide layer on the surface, separating titanium from surrounding environment. At the same time, this fact represents general risk of corrosion damage in the locations of breakdown of passive layer, so local forms of corrosion cannot be excluded under unfavorable conditions. Another well-known characteristic...
Application of Shape-Memory Stapes in Osteosynthesis of Mandible Fracture
J. Syrovátka, P. Michna, E. Gregušová, R. Hodan
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 26-29
In treating fractures in maxilla-facial region verious kinds of materials are used. We have tested treatment of lower jaw fracture by means of staples made of TiNi allow. It is a so-called memory alloy, which contracts upon warming up and creates a relatively stable compressive osteosynthesis. It has been indicated in noncomminuted fracture of lower jaw angle. When a staple is used, an inter-jaw fixation should be applied.It is a cheap method and the intervention does not require special instrumentation. TiNi staples are no more used at our workplace for having been replaced with mini and microsplints; however, they still represent a possible method...
Evaluation of the Effect of Propriosensitive Re-education Exercise in the Therapy of Temporomandibular Disorders
D. Hanáková, B. Jureček, P. Konečný
Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2005; 105(1): 30-34
Rehabilitation exercise is considered as a supplementary method within the framework of the complex therapy of temporomandibular disorders. However, is importance is probable much higher. Its especially contributes to mobilization of the joint, and evokes optimal function of masticatory muscles and correct locomotion stereotypes. The authors evaluated the efficiency of simple rehabilitation exercise in most frequent temporomandibular disorders - the disorders of disc-condyle complex and hypermobility of the joint in comparison with standard methods. The results of the study make it clear that from the standpoint of subjective evaluation of the patient...