Vol 22, No 5 (2018)
- Year: 2018
- Articles: 12
- URL: https://journals.rcsi.science/1728-2802/issue/view/2539
- DOI: https://doi.org/10.17816/dent-2018.22.5
Articles
THE USE OF RAMAN FLUORESCENCE TECHNOLOGY TO EVALUATE THE EFFECTIVENESS OF REMINERALIZATION OF SOLID TOOTH TISSUE
Abstract
The purpose of the study-to justify the effectiveness of the method of Raman-fluorescence diagnostics in the assessment of the remineralisation of the hard tissues of the tooth. In preclinical in vitro study on the model 25 the test object teeth (the incisors of the lower jaw) removed as clinically indicated, carried out Raman-fluorescence spectroscopy with a wavelength of probe radiation of 532 nm. The advantages of Raman-fluorescence spectroscopy are expressiveness, noninvasiveness, simple and non-destructive control of the degree of remineralization of hard tooth tissues [1-3]. In the course of the study, a qualitative and quantitative analysis of the content and distribution of hydroxyapatite in the enamel in the normal and with the use of remineralizing drugs was carried out. The high sensitivity and reproducibility of the method allowed us to assess the degree of mineralization of the tooth, the effectiveness of remineralizing drugs.
Russian Journal of Dentistry. 2018;22(5):220-223
220-223
ADDITIVE DIGITAL TECHNOLOHIES IN DENTISTRY
Abstract
More than 70 digital systems are represented on the market of dental equipment, 13 of them are in Russia. Therefore, dentists should be aware of the range of digital technologies and their capabilities to provide a client-oriented approach to each clinical situation. Timely training of specialists, fully owning digital technologies, is an important condition for ensuring the quality of dental care.
Russian Journal of Dentistry. 2018;22(5):224-228
224-228
ANTIBACTERIAL PROPERTIES OF TEMPORARY FILLING MATERIALS
Abstract
Object: assessment of the antibacterial effect of sealing materials based on epoxy resin, zinc-eugenol of cement and hydroxide of calcium. Materials and methods: Antibacterial activity was estimated by agaro-diffusive test (ADT) estimated the of microorganisms. Plates from filling materials were placed on Petri dish, the sowed with St. aureus, and a zone of a growth inhibition of microorganisms was estimated. Materials were used right after mixing, right after hardening, in 30 days after mixing. Results: Materials had the maximum antibacterial effect after hardening, minimum in 30 days after mixing. The greatest efficiency against St. aureus showed material based on zinc-oxide- eugenol cement.
Russian Journal of Dentistry. 2018;22(5):229-232
229-232
FEATURES OF THE DENTAL STATUS OF MEMBERS OF THE COSMONAUT CORPS
Abstract
High health indicators, including dental health, are a condition of professional activity of cosmonauts. The assessment of indicators of dental status in members of the squad of astronauts on the basis of the survey on the Map-assessment of dental status of the who in the age groups under 35 years 35 - 44 years old over 45 years old. The values of the intensity of caries and periodontal disease, the quality of light-curing seals and endodontic treatment, the presence of orthopedic structures, including implants are presented. The lower intensity of caries, as well as the prevalence and intensity of periodontal diseases among the members of the cosmonaut team in comparison with the Russian indicators; insufficient quality of previous dental treatment regarding fillings and root canal obturation; low need for treatment of caries and dental prosthetics in connection with timely and quality treatment and replacement of removed teeth in specialized clinics of Moscow after enrollment in the cosmonaut corps, as well as in connection with the real dispensary dental care of cosmonauts.
Russian Journal of Dentistry. 2018;22(5):233-236
233-236
INDICATORS OF DENTAL STATUS AS THE REFERENCE TEST SYSTEM THE GENERAL ADAPTATION SYNDROME (STRESS)
Abstract
Justification. Information on objective data and reference indicators characterizing the state and relationship of the maxillofacial organs with the General adaptive syndrome and stress is poorly understood. The purpose of research: experimental and clinical justification of the method of complex and rapid diagnosis of stress as a manifestation of AOS in students on metabolic, morphometric and functional parameters of tissues of the maxillofacial region. Materials and methods. The study involved 30 students aged 18 to 21 years (17 females and 13 males) in the period before and after training sessions with mental stress, after physical exertion, as well as after the end of the first year of study, at the beginning and in the middle of the first semester of the second year of study. The following tests were performed: electrodontodiagnosis, pH-metry and fluorescence diagnostics of saliva, thermometry of periodontal tissues, Rod test, calculation of the Sheikh-Zade formula, spielberger psychological test. Statistical analysis of the results was carried out using standard statistical complexes in Microsoft Excel. Results. EDI: after two sessions with mental stress - an increase of 46.5% (p<0.01). After physical unloading - recovery by 23.2% (p<0.05). pH-metry of saliva: at the end of the school year of 6.41 ± 0,19, after two months of summer vacation - of 6.87± 0,11, and in the middle of the first semester of the second year - of 6.63 ± 0,11. Comparative analysis of thermometry parameters of periodontal tissues in students at the end of the school year and after two months of rest - an increase in gum temperature, on average, by 0.62 °C (p<0.05). When measuring the fluorescence intensity of saliva samples before and after the training load in comparison with the initial state, it was revealed a significant increase in the wavelength range of 600-650 nm and an increase in the integral intensity of 10-30 times, and after a night rest - a decrease of 7-10 times. Test bar: after two sessions with mental stress - deterioration by 31.5% (p<0.001), after physical unloading - improvement by 19.3% (p<0.001). Formula Sheikh Zade: after two sessions with mental stress-an increase of 57.2% (p<0.001), after physical unloading - the dynamics of a decrease of 18.6% (p<0.05). Psychological test of spielberger after summer vacation: prevalence of average level of personal anxiety and high level of reactive anxiety. Conclusion: these methods of examination can be reasonably included in the method of complex diagnosis of CCA and its correction in a wide range of students at all stages of the educational process. The presented indicators of the maxillofacial area objectively and multifactorially reflect the dental status of the CHLO and can be used as a reference in the assessment of stress loads in students at the stages of their training.
Russian Journal of Dentistry. 2018;22(5):237-241
237-241
EVALUATION OF STABILOMETRIC PARAMETERS OF PATIENTS WITH INCREASED DENTAL ATTRITION
Abstract
Aim of the present study was to evaluate the parameters of computer stabilometry of patients with increased dental attrition. Methods. We have examined 50 patients with increased dental attrition, 45 patients who didn’t have any sign of functional disorders were the control group. The stabilometric examination was carried out using the system for diagnosis and rehabilitation of the musculoskeletal system and the balance function “MBN-Stabilometer” (MBN, Moscow). Inclusion criteria were presence of increased dental attrition 2,3 Bushan’s rate, normal occlusion (Angle’s occlusion classification), age of 35 to 54 years. Exclusion criteria were oral mucosal diseases, periodontitis, temporomandibular joint dysfunction, dental-anomalies and deformities, taking medicine that affect muscle tone; somatic diseases in the acute stage. Results. Analyzing and comparing of the data of the stabilometric study of patients of the main group and the control group showed statistically significant differences in the parameters were obtained. Conclusion. Utilization of computer stabilometry should reveal functional disorders of postural systems, as well as determine the most rational tactics of complex treatment of patients with increased dental attrition.
Russian Journal of Dentistry. 2018;22(5):242-244
242-244
245-248
REHABILITATION OF THE PATIENT WITH UNILATERAL CLEFT LIP AND PALATE (CASE REPORT)
Abstract
The article presents a clinical example analyzing the outcome of a comprehensive rehabilitation of patient B. 22 years old with a diagnosis of congenital unilateral cleft lip and palate, defect of the alveolar bone of the maxilla in region 22. The defect of the alveolar bone was eliminated using revascularized periosteal-cortical femoral autotransplant . As a result of the treatment, the continuity of the alveolar bone was restored, conditions were created for the installation of dental implants, followed by prosthetics. Performed reconstructive rhinoplasty, cheiloplasty. Control examination after 1, 3 and 12 months confirmed a lasting positive aesthetic and functional result.
Russian Journal of Dentistry. 2018;22(5):249-254
249-254
DISTURBANCE OF IRON METABOLISM AND ULTRASTRUCTURAL FEATURES OF THE GINGIVA IN PATIENTS WITH Β-THALASSEMIA MAJOR
Abstract
Introduction: β-thalassemia major is a hereditary blood disease, a main pathogenetic factor of which is the disruption of the synthesis of β-chains of hemoglobin. Inevitable metabolic disorders that occur during regular blood transfusion form an additional risk of damage and cellular modification of organs and tissues, including the oral cavity. Aim: determination of the pathogenetic role of iron metabolism disorder in the development of chronic inflammatory periodontal diseases in patients with β-thalassemia. Material and methods: 12 patients with β - thalassemia major who had periodontal diseases were examined in the Republican Center of Thalassemia in Baku (average age is 18 ± 1.3 years). The control group consisted of 16 somatically healthy individuals with intact gingiva tissues (the average age is 18.0 ± 0.7 years). Serum Iron, ferritin, hepcidin, total iron-binding capacity (TIBC), level of Il2, Il6, Il10, TNFα were measured from peripheral blood samples. To determine the ultra-structural study of the periodontal tissues in patients with β-thalassemia major, the method of electron microscopy studies of gingiva biopsies was used. Results of the study: The study revealed an increase in the level of serum iron and ferritin against the background of a progressively decreasing TIBC in patients with β-thalassemia major. Also activation of pro-inflammatory cytokines - TNFα, Il6, Il10 was observed in homozygous patients. Metabolic indicators are compared with ultrastructural features of cellular elements of a gum. Signs of accumulation of iron in cellular elements both of its own plate and of the epithelial cover were compared. The presence of iron was recorded in immunocompetent cells - macrophages and lymphocytes. Conclusion: Summarizing the data obtained, we can conclude that deproteinization of ferritin cores and their detection both in the cytoplasm and in the nucleoplasm of immunocompotent cells leads to irreversible degenerative changes in cellular elements of the gingiva. The authors link the development of the generalized inflammatory - degenerative process in the periodontium with revealed exchange -structural violations.
Russian Journal of Dentistry. 2018;22(5):255-261
255-261
OPPORTUNITIES OF THE APPLICATION «GUIDED BIOFILM THERAPY» PROTOCOL FOR MUCOSITIS AND PERIIMPLANTITIS PREVENTION
Abstract
In order to improve clinical examination quality of patients who use dental prostheses on implants, an expert evaluation of the protocol for dental diseases prevention «Guided Biofilm Therapy» was carried out. Based on it, a standard operating procedure «Oral hygiene of patients using prosthetic implants» has been developed. It’s clinical approbation led to the conclusion about safety and efficiency of prophylactic procedures with regard to biofilm elimination as the main etiological factor of mucositis and periimplantitis. To achieve high quality of the protocol manipulations, they must be carried out by qualified personnel, taking into account indications and contraindications, observing all features of working with the tissues surrounding implants.
Russian Journal of Dentistry. 2018;22(5):262-266
262-266
ENDOSIALOSCOPY IN THE DIAGNOSIS OF OBSTRUCTIVE SIALADENITIS
Abstract
The analysis of 80 clinical observations in which sialo-endoscopy was used as a diagnosis of the cause of obstruction of the salivary gland was performed. The study showed that endoscopy of the ducts of the major salivary glands provides important diagnostic information inaccessible to other methods. The information obtained with endosialoscopy is necessary for the correct choice of treatment for patients with obstructive sialoadenitis.
Russian Journal of Dentistry. 2018;22(5):267-269
267-269
THE COST OF LABOR AND PREVENTION OF DENTOALVEOLAR ANOMALIES WITH THE USE OF PLATES WITH ARTIFICIAL TEETH WHEN PREZHDEVREMENNOY LOSS OF DECIDUOUS TEETH
Abstract
The calculations of labor intensity and cost of prevention of dentoalveolar anomalies in children with premature loss of teeth using a removable plate with artificial teeth. The method of calculations is described in detail, the differentiated values of labor intensity and cost of different stages of production of the plate and its use are given. The complexity of manufacturing a removable plate with artificial teeth and the corresponding observation by an orthodontist doctor in the process of preventing deformation in a child with premature loss of temporary teeth is an average of 7.5 hours; direct labor costs of the doctor are 4.3 hours, dental technician-1.9 hours. The cost of production of the plate and subsequent treatment is 13 370 rubles, among which 80% is the remuneration of the main and auxiliary personnel with tax charges.
Russian Journal of Dentistry. 2018;22(5):270-272
270-272