scholarly journals Gingival esthetics: an orthodontic and periodontal approach

2012 ◽  
Vol 17 (5) ◽  
pp. 190-201 ◽  
Author(s):  
Máyra Reis Seixas ◽  
Roberto Amarante Costa-Pinto ◽  
Telma Martins de Araújo
Keyword(s):  
Tooth Movement ◽  
Treatment Results ◽  
Transdisciplinary Approach ◽  
The Moment ◽  
Smile Esthetics

INTRODUCTION: Currently, people's esthetic requirements and expectations have increased substantially. Therefore, dentists have been seeking ways to provide excellent treatment results which, consequently, increasingly require a well organized transdisciplinary approach. The link between orthodontics and periodontics became evident from the moment professionals began to understand the biology of tooth movement. As regards smile esthetics, however, such cooperation is now essential. OBJECTIVE: To show clinically how and when orthodontists and periodontists should work jointly to enhance smile esthetics based on the display and harmony of the gingival contour.

Distinctive features of the results of operative treatment of intraarticular and extraarticular fractures in HIV-infected patients

2021 ◽  
Vol 19 (3) ◽  
pp. 103-108
Author(s):  
S. N. KHOROSHKOV ◽  
◽  
N. G. DORONIN ◽  
N. V. YARIGIN ◽  
V. G. BOSYKH ◽  
...  
Keyword(s):  
Hiv Infection ◽  
Rapid Progression ◽  
Treatment Results ◽  
Expected Time ◽  
Soft Tissue Regeneration ◽  
Articular Fractures ◽  
Intraarticular Fractures ◽  
Fracture Consolidation ◽  
Secondary Displacement ◽  
The Moment

The purpose — to evaluate the effectiveness of the developed algorithm for determining the tactics and methods of treating intraarticular fractures in HIV-infected patients. Material and methods. From 2016 to 2020, 56 HIV-infected patients with intra-articular fractures underwent surgical treatment. In the course of treatment, an algorithm developed in the clinic for determining the tactics and method of treating HIV-infected patients was used, which proved effective in treating extra-articular fractures. Results. The results were evaluated in the average expected time of the fracture consolidation of the selected location, as well as 6 and 12 months from the moment of surgery using the algorithm developed by us for determining the tactics and method of treating fractures in HIV-infected patients. Good results (according to the Luboschitz — Mattis scale) were noted in 16 (30,8%), satisfactory — in 27 (51,9%) and unsatisfactory — in 9 (17,3%) cases. For patients of this category, the most typical complications were the rapid progression of deforming arthrosis of the joints, the secondary displacement of bone fragments against the background of bone resorption, and the development of an inflammatory process of predominantly non-infectious etiology. Conclusion. The use of the developed algorithm for determining the tactics and method of treatment in HIV-infected patients with extra-articular fractures, taking into account the effect of HIV infection and antiretroviral therapy on the processes of bone remodeling and soft tissue regeneration, can significantly reduce the number of unsatisfactory treatment results. At the same time, the peculiarities of the effect of HIV infection on the state of cartilage, subchondral bone and synovial fluid determine the nature and risks of postoperative complications in HIV-infected patients. In the future, it is planned to correct the developed algorithm taking into account the data obtained and to carry out a comparative analysis of the treatment results.

scholarly journals Fatal bleeding in a 1.5-year-old child with aortoesophageal fistula: case report and review of the literature

2021 ◽  
Vol 11 (2) ◽  
pp. 177-184
Author(s):  
Saidkhassan M. Bataev ◽  
Zaurbek Z. Magomedov ◽  
Dmitriy V. Kibalnic ◽  
Anastasia I. Lello ◽  
Andrey S. Akatiev
Keyword(s):  
Massive Bleeding ◽  
Aortoesophageal Fistula ◽  
Review Of The Literature ◽  
Treatment Results ◽  
Esophageal Lumen ◽  
Fatal Bleeding ◽  
Uncommon Disease ◽  
History Of ◽  
The Moment ◽  
Upper Gastrointestinal

Aortoesophageal fistula in children is a very uncommon disease, which in most cases leads to death during the first days from the moment it occurs. Its high mortality is due to the lack of knowledge among doctors about the similarity of the disease in children and the lack of experience treating it. This paper presents the case history of a 1.5-year-old child who was admitted with bleeding from the upper gastrointestinal tract and died 36 hours after admission due to continued massive bleeding at the diagnostic measure stages. An autopsy revealed an aortic aneurysm with a diameter of 1.5 cm, which penetrated the esophageal lumen and formed an aortoesophageal fistula. This article analyzes the treatment results of 17 cases of successfully treating children with aortoesophageal fistula, which we found in the literature. It describes the leading causes and mechanisms of the development of this pathology in children. Also, the article describes the diagnostic and treatment methods for children with aortoesophageal fistula.

scholarly journals CLINICAL USE OF ORTHO-SUV TRANSOSSEOUS HEXAPOD IN TREATMENT OF LOWER LIMB FALSE JOINTS

2016 ◽  
Vol 1 (4) ◽  
pp. 78-84
Author(s):  
Тишков ◽  
Nikolay Tishkov ◽  
Пусева ◽  
Marina Puseva ◽  
Рудаков ◽  
...  
Keyword(s):  
Lower Limb ◽  
Soft Tissues ◽  
Varus Deformity ◽  
Valgus Deformity ◽  
Treatment Results ◽  
Second Stage ◽  
Working Age ◽  
Hip Deformity ◽  
The Moment ◽  
Two Stages

We studied the use of Ortho-SUV hexapod in the treatment of 15patients with lower limb false joints. All patients were at active working age – from 22 to 50years. In 12patients, the period from the moment of trauma was 1 to 3years, in 3patients – 3 to 6years. 5patients had femoral false joints, 10patients – shin false joints. In 98% of cases, the formation of false joints was caused by inadequate treatment of initial trauma. In 100% of cases, false joint localized at diaphyseal level and was accompanied with shortening of injured segment for 2.5±1.0cm in 13patients, and for 0.5 and 0.8cm in 2cases. We also registered recurvatum and valgus deformity in 5patients, recurvatum and varus deformity in 8patients, and antecurvatum and varus deformity in 2patients. Combined contracture in knee and ankle joint was found in 90% of patients. Using combined transosseous osteosynthesis along with Ortho-SUV hexapod allowed us to correct hip deformity for 35±10days and ankle deformity – for 20±5days on the average. When shortening of femoral bone for more than 5.0cm, the deformity was corrected in two stages. At the first stage, we reconstructed the length of a segment using methods of transosseous osteosynthesis at discrete-continuum distraction. At the second stage, we corrected deformity using Ortho-SUV hexapod within specified time limits. Duration of femoral and shin false joint consolidation was 194±16days. We registered inflammatory complications in the areas of transosseous elements contacting soft tissues in 3(0.2%)patients. These complications didn’t have an effect on the treatment results.

scholarly journals Unwanted tooth movement produced by the bonded retention wire : the “wire syndrome,” observations, theories, clinical consequences : second part

2018 ◽  
Vol 21 (4) ◽  
pp. 503
Author(s):  
F. Roussarie ◽  
G. Douady
Keyword(s):  
Clinical Evidence ◽  
Scientific Literature ◽  
Tooth Movement ◽  
Mechanical Explanation ◽  
Clinical Consequences ◽  
Mechanical Element ◽  
Orthodontic Device ◽  
The Wire ◽  
The Moment

Sometimes teeth can move even if they seem to have been perfectly stabilised by a retention wire. We call this phenomenon the “wire syndrome”. It has been well described both in the mandibular and maxillary arches in part one of this article. For the moment, there has been no mechanical explanation for this phenomenon in the scientific literature. After an analysis of photographic documents from fellow specialists and an examination of cases from our own office, we have developed a theory to explain the mechanical element involved. We will divide our analysis into two hypotheses. They could be inter-connected. The first so-called “intrinsic” hypothesis groups together procedural erreurs which all lead to the use of an active bonded wire. In such cases, the wire is directly responsible for the movements. Its action is the same as that of an orthodontic device directly bonded on the teeth. The second “extrinsic” hypothesis shows that a tooth with a well bonded wire can rotate if the link between the wire and the composite is broken and if force is present. The clinical evidence we have gathered could allow us to combat this phenomenon efficiently.

scholarly journals The benefits of early surgical treatment of deep cervical burns in children

2020 ◽  
Vol 8 (1) ◽  
pp. 25-34
Author(s):  
Pavel A. Gnipov ◽  
Alexey G. Baindurashvili ◽  
Marina A. Brazol ◽  
Ekaterina V. Mitrofanova ◽  
Maxim R. Melnikov ◽  
...  
Keyword(s):  
Surgical Treatment ◽  
Main Group ◽  
Control Group ◽  
Surgical Removal ◽  
Treatment Results ◽  
The Third ◽  
Graft Success ◽  
The Moment ◽  
Early Surgical Treatment

Background. The frequency of deep cervical burns in children is four times higher than that of deep face burns. Currently, there is no consensus on the methods for surgical treatment of deep burns in cervical areas; meshed skin autografts continue to be used. Aim. To evaluate the benefits of early surgical treatment of deep сervical burns in children between the third and fifth days from the moment of injury. Materials and methods. Case-control study. Surgical treatment was performed in 81 children with deep cervical burns. The main group with early surgical treatment included 46 children and underwent surgical treatment at 3.37 0.14 days from the moment of injury; the control group received autograft during stage treatment for 35 children at 27.17 0.18 days. The treatment results were evaluated by the following indicators: the number of dressing changes, the period of skin restoration, and the area of graft success. In the long term, functional and cosmetic treatment results were evaluated. Results. In the study and control groups, 7.93 0.45 and 18.75 0.61 dressings were required to complete the treatment, respectively (p 0.001). The skin restoration periods were 16.54 0.68 and 36.94 0.89 days, respectively (p 0.001). The graft success areas were 99.50% 0.13% in the main group and 93.91% 2.68% in the control (p 0.001). During the staged surgical treatment, one patient showed a loss of 90% of the graft, which required regrafting. Other complications in the treatment process have not been noted. When assessing long-term cosmetic results using the Vancouver Scar Scale, the average score was 4.0 0.26 points in the main group and 7 0.28 points in the control (p 0.001). The presence of post-burn cicatricial contracture in the main group was noted in 12 (26%) people and the absence in 34 (74%) children. In the control group, 20 (57%) patients required surgical removal of post-burn deformity, and 15 (43%) children did not need further surgical interventions. Conclusions. Early surgical treatment of deep cervical burns in children on the third and fifth days from injury allows not only to accelerate the process of restoration of the skin but also to directly affect the cosmetic and functional results in a better way.

scholarly journals Relapse and retention after orthodontic treatment

2015 ◽  
Vol 27 (3) ◽  
Author(s):  
Elih E.
Keyword(s):  
Orthodontic Treatment ◽  
Tooth Movement ◽  
Orthodontic Tooth Movement ◽  
Treatment Results ◽  
Periodontal Tissues ◽  
Wide Range

Orthodontic treatment results are potentially unstable that has a tendency to return to the former position. This is the so called relapses and therefore retention is necessary because the gingival and periodontal tissues are affected by orthodontic tooth movement and required time for reorganization when the appliances are removed. Retention is the prolonged dental detention that is done at the end of an orthodontic treatment with use of appliances designed for dental stabilization. The purpose of this paper is to explain the cause of relapse and a wide range to prevent relapse. The method used is based on literature. The conclusion is stabilizing treatment results with the retention procedure is an important part in orthodontic treatment. The patient must be given information about the implications of relapse and how to use the retainer, so that the patient can take responsibility for retention phase of treatment.

scholarly journals Three-dimensional nonlinear prediction of tooth movement from the force system and root morphology

2020 ◽  
Vol 90 (6) ◽  
pp. 811-822
Author(s):  
Roberto Savignano ◽  
Rodrigo F. Viecilli ◽  
Udochukwu Oyoyo
Keyword(s):  
Tooth Movement ◽  
Three Dimensional ◽  
Cone Beam ◽  
Nonlinear Prediction ◽  
Element Analysis ◽  
Force System ◽  
Force Ratio ◽  
Force Direction ◽  
Force Systems ◽  
The Moment

ABSTRACT Objectives To determine the different impact of moment-to-force ratio (M:F) variation for each tooth and spatial plane and to develop a mathematical model to predict the orthodontic movement for every tooth. Materials and Methods Two full sets of teeth were obtained combining cone-beam computed tomography (CBCT) and optical scans for two patients. Subsequently, a finite element analysis was performed for 510 different force systems for each tooth to evaluate the centers of rotation. Results The center of CROT locations were analyzed, showing that the M:F effect was related to the spatial plane on which the moment was applied, to the force direction, and to the tooth morphology. The tooth dimensions on each plane were mathematically used to derive their influence on the tooth movement. Conclusion This study established the basis for an orthodontist to determine how the teeth move and their axes of resistance, depending on their morphology alone. The movement is controlled by a parameter (k), which depends on tooth dimensions and force system features. The k for a tooth can be calculated using a CBCT and a specific set of covariates.

scholarly journals TREATMENT RESULTS OF PATIENTS WITH COMPLICATED COLORECTAL CANCER IN ORDINARY HOSPITAL AND HOSPITAL ON REGIONAL LEVEL

2016 ◽  
Vol 175 (6) ◽  
pp. 38-43
Author(s):  
S. N. Shchaeva ◽  
D. V. Narezkin
Keyword(s):  
Colorectal Cancer ◽  
Colon Cancer ◽  
Surgical Intervention ◽  
Locally Advanced ◽  
Acute Intestinal Obstruction ◽  
Regional Level ◽  
Common Condition ◽  
Treatment Results ◽  
Regional Metastasis ◽  
The Moment

The article analyzed the results of surgical treatment of 1098 patients with urgent complications of colon cancer (acute intestinal obstruction, enterorrhagia, perforation, perifocal inflammation) in patients from Smolensk and Smolensk Region at the period from 2001 to 2013. The volume of surgical intervention depended on the age of patients, terms of hospital admission from the moment of complication development, common condition of patients, presence of severe accompanying pathology, localization of malignant tumor, presence of locally advanced process, regional metastasis, kind of urgent complication.

Experimental Investigation and Neural Network Modeling for Force System of Retraction T-Spring for Orthodontic Treatment

2010 ◽  
Vol 4 (2) ◽  
Author(s):  
Bahaa I. Kazem ◽  
Nidahal Hussain Ghaib ◽  
Noor M. Hasan Grama
Keyword(s):  
Neural Network ◽  
Cross Section ◽  
Network Model ◽  
Tooth Movement ◽  
Neural Network Modeling ◽  
Prediction Ability ◽  
Force System ◽  
The Third ◽  
Spring Force ◽  
The Moment

In this work three different cross section groups of stainless steel T-Spring, for tooth retraction, have been tested; each spring is activated for 1 mm, 2 mm, and 3 mm, and the resultant force system is evaluated by using a testing apparatus. The results showed that when the cross section and activation distances are increased, the horizontal force and moment increased, while for the moment-to-force ratio, the lowest mean value was at the first activation distance of the first group, and the highest mean values were at the third activation distance of the third group. All three groups at all activation distance are insufficient to produce bodily tooth movement. T-springs of the (0.016×0.022 in.) cross section and with frequent activation provide the best in force system production. An artificial neural network model was trained for simulation of the correlation between input parameters: spring cross section and activation distance, and the outputs spring force system. The network model has prediction ability with low mean error of force prediction (5.707%), and for the moment is (4.048%), and it can successfully reflect the results that were obtained experimentally with less costs and efforts.

The High Resolution Scanning Transmission Electron Microscope

1974 ◽  
Vol 32 ◽  
pp. 316-317
Author(s):  
A. V. Crewe
Keyword(s):  
Electron Microscope ◽  
High Resolution ◽  
High Vacuum ◽  
Scanning Transmission Electron Microscope ◽  
Ultra High Vacuum ◽  
Resolving Power ◽  
Imaging Characteristics ◽  
Transmission Electron ◽  
Scanning Transmission ◽  
The Moment

The high resolution STEM is now a fact of life. I think that we have, in the last few years, demonstrated that this instrument is capable of the same resolving power as a CEM but is sufficiently different in its imaging characteristics to offer some real advantages.It seems possible to prove in a quite general way that only a field emission source can give adequate intensity for the highest resolution^ and at the moment this means operating at ultra high vacuum levels. Our experience, however, is that neither the source nor the vacuum are difficult to manage and indeed are simpler than many other systems and substantially trouble-free.

Sign in / Sign up

Export Citation Format

Share Document