On a clinical example a modified technique for increasing the width of the attached keratinized gingiva zone is presented by taking medallions of a free gingival graft 1.5-2 mm thick from the hard palate using 5 mm mucotomes and transplanting them into the gum defect zones with a simultaneous vestibular deepening in the lateral regions of the jaws. This technology has been tested over a 5-year period with long-term clinical results.
Most of the articles on the groin flap were published in the period from 1975 to 2010, from 2015 to 2022, the SCIP flap surpassed the groin flap in the number of publications. According to the results of a literature search in PubMed and RINC, 30 articles were found and selected, including 288 flaps from the iliac region. The length of the vascular pedicle, the diameter of the vessels, the complications, the prevalence of the flap in the reconstruction of the head and neck, the thickness and the size of the flap were evaluated. Both of these flaps have the same nutrition, but different levels of dissection. In comparison with the groin flap, the SCIP flap has a longer vascular pedicle, which can be enlarged due to new techniques, which also allows it to be used as an ultra-thin flap, and it reduces the need for secondary procedures for defatting and reduces the risks of the complications in the donor area. The thickness of the SCIP flap is less than the groin one, which, according to the author, increases the aesthetic level of operations in the facial area in the case of the texture and color of the flap. Vascular anatomy of the SCIP flap is variable, therefore, the use of preoperative planning is necessary. Despite this, complications in the donor or recipient area during reconstruction with a SCIP flap are minimal. It has been proved that the SCIP flap is versatile and safe in all aspects of reconstruction. It can be concluded that the SCIP flap should be considered as a «workhorse» in reconstructive microsurgery of soft tissues of the throat and oral cavity.
Objective: To study the kinetics of mucosal blood flow in 3D modeling of the gingival contour around dental implants after bone reconstruction of the alveolar ridge in the posterior jaw.
Material and methods: The work was performed at the clinical base of the Department of Surgical Dentistry and Maxillofacial Surgery of the Institute of Dentistry of the Privolzhsky Research Medical University, Nizhny Novgorod, Russia with the participation of 87 patients who were divided into two groups depending on the chosen method of treatment and a control group. The method of laser Doppler flowmetry was carried out using a multifunctional laser diagnostic complex LAKK-02. The terms of observation were 7, 14, 28, 42 days.
Results: On the 7th postoperative day, the decrease in microcirculation index (MI) in the groups reflected moderately pronounced hemodynamic disorders with a predominance of a decrease in MI in the center (by 35.8%). The predominance of the stagnant-ischemic type of microcirculation disorders and low intensity of neoangiogenesis was established, especially in the central zone in group 1, and in group 2 signs of neoangiogenesis were noted by the 7th day. By the 14th day, there was a decrease in venous congestion and signs of arterial inflow. In the 2nd group there was a subsidence of inflammatory phenomena and an increase in the energy of the oscillatory process in the vessels. Gradually, by the 42nd day, the indicators in groups 1 and 2 approached in value to the control group and did not differ significantly.
Conclusion: A previously unknown mechanism of interaction between two heterogeneous grafts (xenograft and thin free gingival graft) was revealed, which determined neoangiogenesis by the traditional method (from the center to the periphery), and by the proposed method (from the periphery to the center). Understanding the wound process is necessary for the purpose of further correction of the surgical technique for the best restoration of the vascular network and an increase in the success rate of operations.
Objective: To increase the effectiveness of the diagnosis and treatment of dental diseases, based on the study of anthropometric and bioimpedance analysis data in adolescents and adult patients to identify the effect of overweight on dental status.
Material and methods: The study involved 60 adolescents aged 15-18 years, 28 of whom were overweight, and 32 with normal body weight. All 52 adult patients aged 30-50 years who participated in the study were overweight (body mass index >25 kg/m2) and had chronic generalized periodontitis. In all patients dental status was assessed by DMF and PMA index, Silness-Loe and Stallard hygienic indices, Muleman bleeding index, Green-Vermillion tartar index. Biochemical parameters of the oral fluid were also evaluated: malondialdehyde, elastase, urease, catalase and lysozyme activity. The adolescents underwent an anthropometric study with the determination of body mass index. Adult patients underwent bioimpedance analysis of body composition to determine the main indicators of fat metabolism in the body: body mass index, fat mass (kg), the proportion of adipose tissue (%) and the mass of extracellular fluid (kg).
Results: The study showed that overweight in patients of different ages worsens their dental status and biochemical parameters of oral fluid.
Conclusion: The inclusion of an anthropometric study with the determination of body mass index and bioimpedance analysis of body composition in the examination of dental patients will allow the development of individual programs for the prevention of dental diseases, implementing a personalized approach to the provision of medical and preventive care.
The aim of the study: Was to compare body mass indices (BMI) of children receiving and not receiving dental caries prevention program in preschool institutions at the age of 3-6 years.
Material and methods: The study comprised163 children (76 boys and 87 girls) initially examined at the age of 3 years in nurseries of the Khimki city region. In one of the nurseries 54 children received dental caries prevention and educational program for 3 years. Other 109 children not receiving any special programs served as controls. Data on caries prevalence and intensity as well as weight and height were collected at baseline examination and 3 years after. BMI was calculated by standard formula and WHO criteria for weight deficiency, normal weight, overweight and obesity for children aged 2-5 and 6-17 years were applied.
Results: Caries prevalence in 3-years-old was 34.1% with dmft median of 1.4 teeth. After 3 years the prevalence of dental caries reached 72.5% in controls and was almost twice as low in the main group (39.3%). Caries intensity growth was also significantly higher in controls (p<0.0001). There was statistically significant difference on the rate of underweight and normal weight in children receiving and not receiving dental caries preventive program (p<0.05). The rate of normal and low BMI in the main group was 82.6% (vs. 66% in controls) and 7.7% (vs. 22%), correspondingly. The higher the caries intensity the more is the risk for being underweight (11.5% in caries-free children vs 25.7% in having DMFT+dft more than 4, p=0.034).
Conclusion: Our study showed positive impact of dental caries prevention program on the anthropometric measurements of children aged 3-6 years which increases the significance of this type of programs in pre-school institutions.
Objective: Research is effective sequencing of measures for orthodontic treatment active period and unfavorable course of retention period predictors in patients with distal malocclusion, complicated by temporomandibular joint pain-dysfunction syndrome.
Material and methods: The retrospective study consists of 102 case reports of patients from 18 to 37 (average age is 26.75±3.25 years) with distal malocclusion (Angle Class II division 2 subdivision) associated with temporomandibular joint pain-dysfunction syndrome.
Results: Cases of successful treatment were 30.4% (n=31), semi-successful - 42.2% (n=43), semi-unsuccessful - 18.6% (n=19), unsuccessful - 8.8% (n=9). ANOVA analysis of orthodontic treatment stages reveals main risk factors for pain syndrome recurrence in retention period. The ineffective morphofunctional compensation and unsuccessful orthodontic treatment predictors are: incomplete pain syndrome elimination, persistent masticatory muscles dysfunction, distal malocclusion recurrence, condylar process distal position recurrence, deep overbite, upper incisors retroinclination for more than 15°, single posterior tooth interference.
Conclusion: Thus, pain syndrome recurrence prevention in retention orthodontic treatment period includes pain and masticatory muscles dysfunction elimination in pre-treatment period, physiological dental occlusion and condylar process central position in active period.
Defects in mandible growth are of undoubted interest for practical healthcare. During the diagnosis, for a more accurate diagnosis and differential diagnosis, it is necessary to understand the criteria for the norm and pathology of diseases of the jaw bones. Often in the body of the mandible at the level of the lower molars, slightly below the maxillofacial line, defects are detected in the form of a depression of the cortical layer towards the unchanged buccal cortical plate. These defects, being the clinical norm, need to be differentiated with many tumor diseases of the maxillofacial region. The literature sources indicate that the cause of these defects is the pressure of the capsule of the submandibular salivary gland in the area of the fossa on the lower jaw. Modern additional diagnostic methods, for example, CBCT and MRI, make it possible to identify a Stafne defect.
The purpose: Of the study is to reduce the risk of postoperative neuropathy of the inferior alveolar nerve by improving diagnostic methods, assessment of individual topographic and anatomical features and extraction technique of impacted teeth adjacent to the mandibular canal.
Materials and methods: According to the CBCT examination, orthopantomography and macroscopic examination of removed third molars roots (n=140) the relative position of the mandibular canal and the roots of the third molars were studied.
Results: Three variants of close mandibular canal and third molars position have been identified. In the lateral and apical nerve position, the root surface depressions were detected. With inter-radicular position fit, the mandibular canal and the nerve bundle form a «bed» in between impacted tooth roots.
Conclusion: The injury of neurovascular bundle prognosis during extraction with an interadicular mandibular position depends on roots anatomy and their convergence degree. If the interradicular distance is less than the diameter of the mandibular canal, nerve injury during tooth extraction is inevitable, in such cases coronectomy is indicated.
Purpose of the study: For the first time distinctions of molecular composition of the dental biofilm at the stages of exo- and endogeneous caries prevention were studied for persons with different cariogenic conditions involving synchrotron molecular spectroscopy techniques.
Material and methods: The samples of the dental biofilm collected from participants of the research were studied at the different stages of experiment. The studies of molecular composition of the biofilms were employed involving the equipment set in the Infrared Microspectroscopy (IRM) laboratory of Australian synchrotron.
Results: Basing on the data obtained by synchrotron infrared spectroscopy with Fourier transform as well as using the calculations of the ratios between organic and mineral components and also statistical analysis of the data we could estimate the changes proceeding in the molecular composition of dental biofilm in a dependence of homeostasis conditions in the oral cavity at the stages of exo- and endogeneous caries prevention.
Conclusion: Observed changes in the values of phosphate/protein/lipid, phosphate/mineral and phospholipid/lipid ratios as well as the presence of statistically significant intra- and intergroup in these coefficients mean that mechanisms of adsorption for the ions, compounds and molecular complexes incoming from the oral fluid into the dental biofilm at the stage of exo-/endogeneous caries prevention are different for the patients in normal condition and for those ones with the developing caries.
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：