Ilga Urtane

Ilga Urtane
Riga Stradins University | rsu · Department of Orthodontics

About

52
Publications
4,176
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607
Citations
Citations since 2016
11 Research Items
277 Citations
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
201620172018201920202021202201020304050
Introduction

Publications

Publications (52)
Article
Full-text available
Background and objectives: The need to evaluate the condylar remodeling after orthognathic surgery, using three-dimensional (3D) images and volume rendering techniques in skeletal Class III patients has been emphasized. The study examined condylar positional, structural, and volumetric changes after bimaxillary or single-jaw maxillary orthognathic...
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Full-text available
Direct Oral Anticoagulants Concentration Testing in Clinical Practice for High-Risk Patients with AF
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Objective: The aim of this study was to analyse the volumetric and crossectional parameters of masseter and medial pterygoid muscles in the relation with mandibular skeletal morphology in individuals with different underlying growth patterns in the vertical dimension. Material and methods: The study originally involved 76 individuals with defini...
Article
Introduction: Several studies have highlighted differences in the facial features in a White European population. Genetics appear to have a major influence on normal facial variation, and environmental factors are likely to have minor influences on face shape directly or through epigenetic mechanisms. Aim: The aim of this longitudinal cohort stu...
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Introduction. Although severe root resorption is rare, it is a side effect of orthodontic treatment which affects tooth prognosis. Patients with severe dentofacial deformity, for whom orthodontic treatment and orthognathic surgery was done at the age of 18 and later, had long duration orthodontic treatment and orthognathic surgery, and are at a hig...
Article
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Introduction: Atrial fibrillation (AF) is the most common arrhythmia that increases by age, doubles for every decade after age of 50 years and reaches about 10% patients ≥ 80 years. Despite direct oral anticoagulants (DOACs’) predictable pharmacokinetics and pharmacodynamics, the laboratory tests are necessary for effective and safe medical treatme...
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Objectives: To detect signalling molecule specificities in jaw bone growth zones in skeletal class II and class III patients and compare them to those of a control group. Material and methods: Twenty skeletal Class II and 20 skeletal Class III patients who underwent orthognathic surgery treatment were in the study group and five skeletal Class I...
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Objectives: The aim of the study was to investigate cleft - affected tissues in children with cleft lip and palate in order to detect appearance of β-defensin, interleukins (IL) and gene proteins. Material and methods: The study group included 10 patients with cleft lip and palate. During nose surgery tissue samples from bone and cartilage have...
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Low adherence to antihypertensive therapy is a major cause of adverse cardiovascular outcomes by uncontrolled high blood pressure. If the most frequent causes of inappropriate taking of medicine are identified, possible improvements within the health care could be performed, promoting the safety and efficacy of antihypertensive therapy. The aim was...
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Introduction: Patients with juvenile idiopathic arthritis (JIA) have a high risk of temporomandibular joint (TMJ) involvement. Lesions in the TMJ appear early in the course of this disease. Evaluating the structure of the TMJ in JIA patients using cone beam computed tomography (CBCT) provides an understanding of the typical radiologic features of...
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The aim of the study was to assess the relationship between vertical skeletal pattern in terms of mandibular rotation and osseous structural changes of the TMJ in pre- surgical orthognatic patients. TMJ skeletal morphology was evaluated in cone beam computer tomography images of 117 consecutive patients with Class II and Class III dentofacial defor...
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BACKGROUND. The need for appraisal of oral health-related quality of life has been increasingly recognized over the last decades. The aim of this study was to develope a Latvian and a Russian version and test the validity of the Oral Health Impact Profile (OHIP-49) for use among adults in Latvia. METHODS. The original English version of the OHIP-49...
Article
Background Juvenile idiopathic arthritis (JIA) is the most common autoimmune heterogenic diseases group of unknown etiology with7 subtypes. There are markedly high prevalence of temporomandibular joint (TMJ) involvement- 17 - 87% depending on population and examination method (1). Contrast enhanced magnetic resonance imaging (MRI) is considered the...
Article
Osteoarthritis of the temporomandibular joint (TMJ) can be described as non-inflammatory arthritic condition that results in degenerative changes of the joint structures. The aim of this study was to evaluate the skeletal morphology of the TMJ in patients with osteoarthritis with severe skeletal malocclusions (Class II and Class III) and patients w...
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Background Antiplatelet therapy is a cornerstone for prevention and treatment of cardiovascular atherothrombotic diseases. Low-dose aspirin is usually the first choice antiplatelet drug. Furthermore, aspirin combined with clopidogrel has become the gold standard for patients receiving coronary stent or suffering from acute coronary syndrome. In cas...
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The purpose of this retrospective cephalometric study was to compare the stability of bilateral sagittal split osteotomy (BSSO) with extra-oral vertical ramus osteotomy (VRO) after correction of class III malocclusion by means of bimaxillary orthognathic surgery. The sample comprised 51 consecutively treated patients, 38 females and 13 males, with...
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Full-text available
INTRODUCTION. Orthodontic teeth movement is accompanied by remodeling of alveolar bone, including the interradicular septum and periodontal ligaments (PDL). Periodontal signaling molecules have important functions during tooth movement and they are active in the bone remodeling process. Patients involved in orthodontic treatment belong to different...
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Orthodontic teeth movement is accompanied by the remodeling of alveolar bone, including the interradicular septum. Bone contains three cell types, osteoblasts, osteocytes, and osteoclasts that are in direct contact with all of the cellular elements in the bone marrow. Marrow is the source of both bone-building osteoblasts and bone destroying osteoc...
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Patient's age is an important factor in orthodontic treatment. There are many studies about bone aging from the aspects of osteoporosis and other bone diseases. Both, aging and osteoporosis are associated problems and have a great importance in relation to their incidence. But not only osteoporosis or other bone related diseases are issue for many...
Article
Objective: To evaluate and compare dimensional morphology of masseter and medial ptery-goid muscles and mandibular skeletal parameters between subjects with skeletal Class II and Class III Materials and Methods: The sample consisted of 13 patients with skeletal Class II and 10 patients with skeletal Class III prior to the start of combined orthodon...
Article
To evaluate and compare dimensional morphology of masseter and medial pterygoid muscles and mandibular skeletal parameters between subjects with skeletal Class II and Class III. The sample consisted of 13 patients with skeletal Class II and 10 patients with skeletal Class III prior to the start of combined orthodontic treatment and orthognathic sur...
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Full-text available
The aim of our study was to assess condylar parameters and condyle position within glenoid fossa of TMJ in volumetric 3D imaging in patients with Class II and Class III malocclusions. MATERIALS AND METHODS. The study group included 15 patients with severe skeletal Class II (mean age 18.0 yrs) and 14 patients with severe skeletal Class III ( mean ag...
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Bone extracellular matrix proteins osteopontin and osteonectin have important function during embryonic osteogenesis and are active in bone remodeling process. Knowledge about bone extracellular matrix proteins explores the mechanisms of craniofacial development and helps to understand better morphopathogenesis of severe dentofacial anomalies. Aim...
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Unlabelled: The condyle has a special multidirectional capacity for the growth and adaptive remodeling of temporomandibular joint (TMJ). Being part of TMJ structure, it plays an important role in the stability of long-term treatment results for orthodontic and orthognatic patients with Class II division 1 subdivision malocclusions. Several compute...
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In the recent past there has been an increase in the number of adults seeking orthodontic treatment therefore special attention to periodontal status of these patients needs more careful evaluation. Periodontal considerations in adult orthodontic treatment are increasingly important as patients become older. The aim of the study was to assess the i...
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Unlabelled: Growth factors and growth stimulating genes are main signaling molecules for growth and development in ante- and postnatal period involved in cellular proliferation, differentiation and morphogenesis of tissues and organs during embryogenesis, postnatal growth and adulthood. The aim of this study was to evaluate TGF-beta (transforming...
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The aim of the study was to evaluate soft tissue profile of the children with impaired nasal breathing. Soft tissue points relative to the true vertical line (TVL) were measured on the lateral cephalograms in natural head position of 54 subjects with diagnosed nasal obstruction (34 males, 20 females, mean age 13.3+/-2.7). As controls served 33 pati...
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To review the cephalometric studies investigating the craniofacial morphology of the parents of children with cleft lip and/ or palate (CL(P)). A review of the literature has been conducted using MedLine sources dated 1970-2005. The Cleft Palate-Craniofacial Journal has been searched manually. The reference lists of all previous publications were c...
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Awareness of the age related situation as to the malocclusion prevalence in population and orthodontic treatment need is very important and useful for planning an orthodontic care, especially taking into account the interdisciplinary aspect of the problem. The aim of this study was to investigate the degree of severity of malocclusion and the need...
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Measuring the prevalence of malocclusion and treatment need in a population is useful for the planning of orthodontic services. In addition, knowledge concerning the attitudes of patients to malocclusion is becoming increasingly important in orthodontics. Without a satisfactory estimate of the need and demand for treatment it is difficult to develo...
Article
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The aim of the present study was to estimate the mean values for the pharyngeal airway sagittal dimension in the three levels –naso, oro and hypopharyngeal – for the young adult patients with Class III dentofacial skeletal morphology in comparison with Class I patients with normal dentofacial morphology. Class III skeletal dentofacial anomalies in...
Article
Student selection and recruitment play a vital role in the successful outcome of dental education. To identify key issues and practices in selection and recruitment, the group assessed current processes, philosophies and practices from a range of different educational systems, although it was not possible to gather data from all countries or contin...
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Student selection and recruitment play a vital role in the successful outcome of dental education. To identify key issues and practices in selection and recruitment, the group assessed current processes, philosophies and practices from a range of different educational systems, although it was not possible to gather data from all countries or contin...
Article
Simultaneous heating of the glycols (I), tetramethoxysilane (II), and the dialkanolamines (III) gives the asymmetric spirocycles (IV).
Article
Reaction of the diphenylsilane (I) with triethanolamine (II) in the presence of catalytic amounts of sodium methoxide leads to the cleavage of one Si-Ph bond in (I) and the formation of the phenylsilatrane (III).
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In this work are described new instances that the authors observed of cleavage of the Si-Ph bond by di- and trialkanolamines. Interaction of phenylsilanes with di- and trialkanolamines in the presence of sodium alcoholate at T > 200°C breaks the CâHâ-Si bond. Interaction of diphenylmethoxysilane with bis(3-hydroxypropyl)amine forms a new heterocyc...
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Es werden neun verschiedene Verfahren, darunter auch erstmals beschriebene, zur Gewinnung der Titelverbindungen (I) untersucht.
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The 15N13C, 15N11B, 15N29Si, 29Si1H and 29Si13C one-bond coupling constants in 15N-labelled boratranes, silatranes and germatranes were measured and considered together with the literature data on 15N119Sn and 119Sn13C couplings in stannatranes. The quantitative pattern of structural variations in metallatranes revealed by analysis of X-ray...
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Es wird über Darstellung und charakteristische Merkmale von 41 neuen cyclischen siliciumorganischen Estern von Diethanolaminen — 1, 3-Dioxa-6-aza-2-silacyclooctanen — berichtet. Neun verschiedene Verfahren zu ihrer Gewinnung wurden untersucht, darunter auch die in dieser Arbeit zum ersten Mal beschriebenen. Es wird eine Vergleichseinschätzung der V...
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The retention behaviour of 25 derivatives of dialkanolamines and diethylene glycol on Apiezon L and OV-225 has been investigated. It was found that organosilicon derivatives have no transannular N → Si bond under gas-liquid chromatographic conditions. As in the case of atranes, the chromatographic behaviour of boron-containing derivatives of dietha...
Article
X-ray analysis has been conducted on four dioxaazasilacyclooctanes R2Si(OCH2CH2)2NR′ with R = C6H5, R′ = CH3 (IV); R = C6H5, R′ = (CH3)3C (V); R = CH3, R′ = C6H5 (VI) and R = R′ = C6H5 (VII). The interatomic distances SiN measured for these compounds had the values: 2.68 (IV), 3.16 (V), 3.19 (VI) and 3.08 Å (VII), indicating weak nitrogen—silicon...
Article
1H, 13C and 29Si NMR data obtained for 2,2-diaryl-1,3-dioxa-6-aza-2-silacyclooctanes Ar2Si(OCH2CH2)2NR indicate the occurrence in solution of an equilibrium between the conformations boat-boat/af chair-chair which are determined by the presence or absence of a transannular N → Si bond. The equilibrium is greatly affected by the electronic and steri...
Article
Hydro- und l-Äthoxysilatrane (I) reagieren in Gegenwart von Alkali mit den Diolen (II) unter Bildung der Verbindungen (III).
Article
Methods for the preparation of bis(1-silatranyloxy)alkanes,[Figure not available: see fulltext.]-[Figure not available: see fulltext.], where R=-(CH2)n-(n=2-6), -CH2CH(CH3)-, and-CH2CH2OCH2CH2-,were developed on the basis of reactions of alkanediols with 1-hydro- and 1-ethoxysilatrane. In the presence of excess alkanediol these reactions give less...
Article
Full-text available
SUMMARY In this study dentofacial morphology was compared in the age groups: up to 12 years; 12-16 years and older than 16 years. The sample comprised 212 randomly selected lateral cephalograms of orthodontically untreated patients (80 males and 132 females). Patients were divided into 3 groups based on the mandibular plane angle. Differences in th...

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