bluuebunny/crossref_metadata_2025 huggingface dataset:
Efekty oddziaływań gorącego ośrodka sypkiego w żelbetowym silosie prostopadłościennym
Authors: Prusiel Jolanta Anna , Kotomska Marta Dominika
Published: March 2022

W pracy przedstawiono wpływ
sprzężonych oddziaływań statycznych i termicznych
na zmianę wartości sił wewnętrznych
w żelbetowej ścianie silosu prostopadłościennego.
Metodą elementów skończonych
przeprowadzono obliczenia silosu
o wysokości komory H = 25 m i grubości
ściany t = 0 ,20 m o raz t rzech w ymiarach
przekroju poprzecznego: 3 x 3 m,
4 x 4 m i 6 x 6 m. Silosy analizowano w
fazie pracy statycznej po napełnieniu gorącym
klinkierem cementowym o temperaturach: T1 = 90°C i T2 = 110°C. Analiza numeryczna
silosów prostopadłościennych potwierdziła
wpływ oddziaływań termicznych od gorącego
klinkieru na przyrost sił wewnętrznych w żelbetowej
ścianie silosu. Na podstawie uzyskanych
wyników opracowano nomogram do
określenia przyrostu poziomych momentów
zginających w ścianie silosu prostokątnego od
obciążenia termicznego.
Ocena odporności dynamicznej stalowego mostu przenośnikowego poddanego oddziaływaniu wstrząsów górniczych
Authors: Rusek Janusz , Firek Karol , Słowik Leszek , Tajduś Krzysztof , Rataj Dagmara
Published: March 2022

W ramach niniejszej pracy zaprezentowano wyniki stosowania autorskiej procedury oceny odporności dynamicznej na wpływ wstrząsów górniczych istniejącego mostu przenośnikowego
o konstrukcji stalowej. Obiekt ten stanowi newralgiczny element zespołu obiektów przemysłowych kopalni. Podstawą do sformułowania kryteriów do oceny był wytężeniowy stan graniczny nośności STR podany przez Eurokody oraz instrukcję ITB dotyczącą zastosowania Eurokodów w celu ustalania wartości obciążeń na terenach górniczych. W ramach analiz dokonano również rozeznania intensywności w zakresie dotychczasowych zjawisk sejsmicznych w obszarze lokalizacji przedmiotowego obiektu. Pozwoliło to na przyjęcie krzywej wzorcowego spektrum odpowiedzi, które zastosowano w
analizie dynamicznej. Finalnie utworzono prętowo-powłokowy model numeryczny obiektu, dla którego przeprowadzono symulacje od obciążeń przyjmowanych do wymiarowania konstrukcji na etapie projektowania. Tak uzyskane wyniki porównano z rezultatami od kombinacji wyjątkowej uwzględniającej wpływ wstrząsów górniczych. Porównanie to pozwoliło wyodrębnić zapas nośności, w ramach którego dopuszczono możliwość przeniesienia przez konstrukcję efektu wywołanego wstrząsem górniczym. Następnie dla wyodrębnionego zapasu nośności wykalibrowano wartości dopuszczalnych przyspieszeń drgań gruntu w płaszczyźnie poziomej i pionowej. W przedstawianej procedurze oceny tak wyznaczone wartości stanowią miarę odporności dynamicznej analizowanej konstrukcji na wpływy oddziaływań wstrząsów górniczych. W ramach pracy wskazano również, że opracowane podejście pozwala na ocenę wrażliwości poszczególnych elementów konstrukcyjnych na wymuszenie dynamiczne generowane wstrząsem górniczym. Ta dodatkowa informacja może być bardzo przydatna na etapie rozważania sposobu wzmacniania konstrukcji.
Numeryczna analiza degradacji konstrukcji komina żelbetowego pod wpływem korozji siarczanowej
Authors: Konderla Piotr , Kutyłowski Ryszard
Published: March 2022

Kominy przemysłowe są poddawane
niekorzystnym wpływom środowiskowym
powodujących często degradację
konstrukcji, wywołaną między innymi korozją
siarczanową. Celem badań niniejszej pracy
była weryfikacja autorskiej adaptacji modelu
korozji siarczanowej, w szczególności
oszacowania zakresu parametrów tego modelu
dla rzeczywistych konstrukcji, na których
autorzy prowadzili badania in situ. Stosując
analizę odwrotną i korzystając z uzyskanych
wyników badań, oszacowano realne zakresy
parametrów procesu dyfuzji i korozji siarczanowej.
Przeprowadzone na tej bazie analizy
numeryczne procesu dają akceptowalną
w pewnym zakresie zgodność z obserwacjami na obiektach rzeczywistych. Wyniki wskazują
jednocześnie, że zwiększenie dokładności
odwzorowania procesów rzeczywistych
będzie wymagało uwzględnienia w modelu
wpływu temperatury na parametry modelu.
Ocena inwestycji z wykorzystaniem fotowoltaiki
na przykładzie domu jednorodzinnego
Authors: Drozd Wojciech
Published: March 2022

W artykule poddano analizie popularne na polskim rynku rozwiązanie
w zakresie odnawialnych źródeł energii w postaci instalacji fotowoltaicznej, wykorzystywanych między innymi w budownictwie jednorodzinnym. Przeprowadzono obliczenia
i zestawiono koszty oraz korzyści wynikające
z takiej inwestycji na konkretnym przykładzie.
CNN-DFT Based Approach Applied to Image Inspection of Railcar Component: A Comparison with Machine Learning Methods
Authors: L. Rocha Rafael , D. Silva Cleison , C. S. Gomes Ana , V. Ferreira Bruno , C. Carvalho Eduardo , C. Q. Siravenha Ana , C. Rosa Carolina
Published: March 2022

The railcar component inspection is one of the most critical tasks in railway maintenance. The use of image processing, coupled with machine learning has emerged as a solution for replacing current standard methodologies. The spectral analysis gives the frequency representation of a signal and has been largely used in signal processing tasks. In this sense, this work proposes the evaluation of the use of the discrete Fourier transform (DFT) in addition to the spatial representation image of railcar component for an automatic detector of defective parts performed by convolutional neural network (CNN) classification. The most appropriate combination of images of the spatial and frequency domains is compared to the histogram of oriented gradients (HOG) feature descriptor linked to the multilayer perceptron (MLP) and support vector machine (SVM) classification, where data augmentation is investigated to improve the classification performed by all approaches. A search is made for the parameters that best fit the MLP and SVM models for comparison with the proposed approach. The results are given in measure of accuracy in addition to accuracy boxplot, and it showed encouraging results in the combination of spatial image and DFT magnitude combined with data augmentation as CNN inputs, reaching an accuracy of 96.04% and demonstrating statistically to have a significant difference between the comparative methods.
Habitar en el virusceno
Authors: Montaner Martorell José M. , Muxí Martínez Zaida
Published: March 2022

El artículo trata de entrever cuales seran las condiciones de las ciudades, y esencialmente de la vivienda, despues de la vivencia de la pandemia del covid 19 y de la experiencia de los confinamientos. Sin duda, esta pandemia nos ha puesto, al menos, frente dos futuros posibles: el de la autodestrucción de nosotros mismos, por no considerarnos parte de un sistema mayor, ni reconocer nuestra ecodependencia; o el de un cambio radical en la trayectoria, que nos permita caminar hacia un futuro habitable. Y en este sentido, el derecho a la ciudad y el derecho a la vivienda tienen oportunidad de serlo en la segunda opción, ya que en la primera son sólo bienes de cambio, financiarizados. De nosotros, como sociedad y civilización, depende.

he article tries to glimpse what the conditions of the cities, and essentially of the housing, will be after the experience of the COVID-19 pandemic and the experience of the confinements.Undoubtedly, this pandemic has put us, at least, in front of two possible futures: that of the self-destruction of ourselves, because we do not consider ourselves part of a larger system, nor recognize our eco-dependence; or that of a radical change in the trajectory, which allows us to walk towards a livable future. And in this sense, the right to the city and the right to housing have the opportunity to be in the second option, since in the first they are only exchange goods, financialized. It depends on us, as a society and civilization.
The tornoceratid ammonoids from the Roteisenstein Formation of Dillenburg (Cephalopoda, Ammonoidea)
Authors: Korn Dieter , Bockwinkel Jürgen
Published: March 2022

The ammonoids of the suborder Tornoceratina from the Middle to Late Devonian Red Ironstone Formation of the area around Dillenburg (eastern Rhenish Mountains) are revised, mainly based on historical collections stored in the Museum für Naturkunde, Berlin. The species Tornoceras typus (Sandberger & Sandberger, 1851), Tornoceras frechi Wedekind, 1918 and Epitornoceras mithracoides (Frech, 1888) are re-described based on the original material from the Red Ironstone. The new genus Lentitornoceras gen. nov. is proposed for the new species L. materni gen. et sp. nov.; the new genus Paucitornoceras gen. nov. is proposed with the type species Goniatites paucistriatus. Epitornoceras transmediterraneum sp. nov. is described from the Anti-Atlas of Morocco and compared with E. mithracoides.
Atherosis of Trophoblast Type: A Specific Form of Decidual Vasculopathy Distinct From Atherosis of Macrophage Type
Authors: Zhang Peilin , Baergen Rebecca
Published: March 2022

Context.—

There are 3 types of decidual vasculopathy, namely, acute atherosis, fibrinoid medial necrosis, and mural arterial hypertrophy. Persistence of vascular trophoblasts is also known to be related to maternal vascular malperfusion, but detailed study is lacking.

Objective.—

To define atherosis of trophoblast type and distinguish it from atherosis of macrophage type with clinical significance.

Design.—

A total of 1322 placentas from 2021 were collected with clinical, neonatal, and placental information, and routine placental pathology examination was performed. Decidual vasculopathy was classified on the basis of the new classification scheme including atherosis of macrophage type, atherosis of trophoblast type, fibrinoid medial necrosis, mural arterial hypertrophy, and mixed-type vasculopathy. The significance of these morphologic changes was examined on the basis of clinical, neonatal, and placental pathology features.

Results.—

Decidual vasculopathy is classified as classic type, mural hypertrophy, and mixed type. Classic-type vasculopathy is further separated as atherosis and fibrinoid medial necrosis. Atherosis is defined as atherosis of macrophage type and atherosis of trophoblast type. Each category of decidual vasculopathy was evaluated in association with maternal, neonatal, and placental pathologic findings. Atherosis of macrophage type and mixed-type vasculopathy showed statistically significant association with preeclampsia/pregnancy-induced hypertension, low birth weight, and low placental weight. Atherosis of trophoblast type was associated with lower placental weight but not with other specific clinical features. Neonates of female sex were associated with mural arterial hypertrophy.

Conclusions.—

Atherosis of trophoblast type is a distinct pathologic feature in late pregnancy, and it is associated with lower placental weight. New classification of decidual vasculopathy helps with better stratification and categorization of placental maternal vascular abnormalities of late pregnancy.
A Review of Extended and Continuous Infusion Beta-Lactams in Pediatric Patients
Authors: Imburgia Taylor A. , Kussin Michelle L.
Published: March 2022

Intravenous beta-lactam antibiotics are the most prescribed antibiotic class in US hospitalized patients of all ages; therefore, optimizing their dosing is crucial. Bactericidal killing is best predicted by the time in which beta-lactam drug concentrations are maintained above the organism's minimum inhibitory concentration (MIC), rather than achievement of a high peak concentration. As such, administration of beta-lactam antibiotics via extended or continuous infusions over a minimum of 3 hours, rather than standard infusions over approximately 30 minutes, has been associated with improved achievement of pharmacodynamic targets and improved clinical outcomes in adult medical literature. This review summarizes the pediatric medical literature. Applicable studies include pharmacodynamic models, case series, retrospective analyses, and prospective studies on the use of extended infusion and continuous infusion penicillins, cephalosporins, carbapenems, and monobactams in neonates, infants, children, and adolescents. Specialized patient populations with unique pharmacokinetics and high-risk infections (neonates, critically ill, febrile neutropenia, cystic fibrosis) are also reviewed. While more studies are needed to confirm prospective clinical outcomes, the current body of evidence suggests extended and continuous infusions of beta-lactam antibiotics are well tolerated in children and improve achievement of pharmacokineticpharmacodynamic targets with similar or superior clinical outcomes, particularly in infections associated with high MICs.
Association of Asthma Exacerbation Risk and Physician Time Expenditure With Provision of Asthma Action Plans and Education for Pediatric Patients
Authors: Afolabi Titilola , Fairman Kathleen A.
Published: March 2022

OBJECTIVE

To provide information about factors underlying provision of asthma action plans (AAPs) to a minority of pediatric patients with asthma, assess whether risk of exacerbation acts on provision of AAP and asthma education directly, suggesting targeting to highest-risk patients, or indirectly by influencing physician-patient interaction time.

METHODS

This study was a retrospective cross-sectional analysis of a nationally representative sample of physician office visits that consisted of patients aged 2 to 18 years with asthma. Exacerbation risk comprised proxy indicators of control and severity. Direct and time-mediated effects of exacerbation risk on provision of AAP and education were calculated from logistic regression models.

RESULTS

Asthma action plans were provided in 14.3% of visits, education in 23.9%. Total direct effects of exacerbation risk (ORs = 3.88–4.69) far exceeded indirect, time-mediated effects (both ORs = 1.03) on AAPs. Direct effects on education were similar but smaller. After adjusting for risk, physician time expenditure of ≥30 minutes was associated with nearly doubled odds of providing AAP or education (ORs = 1.90–1.99). Visits that included allied health professionals alongside physician care were significantly associated with all 4 outcomes in multivariate analyses (ORs = 3.06–5.28).

CONCLUSIONS

Exacerbation risk has a strong, direct association with AAP provision in pediatric asthma, even controlling for physician time expenditure. Provision of AAP and education to pediatric patients with asthma may be facilitated by increasing available time for office visits and involving allied health professionals.
Comparative Analysis of Disaster and Safety Datasets, Data Quality, and Services in Korean and Australian Public Data Portals
Authors: Lee Jeongyoon , Park Inseon
Published: March 2022

The objective of this study is to design improved plans for disaster and safety management through comparative analysis of datasets comprising details regarding the disaster and safety sector that are available in Korean and Australian public data portals and thereby examine the associated portal strategies and national operating systems To this end, based on previous studies and national public data portal evaluation standards, public data portal comparison standards were established. Furthermore, quantitative configuration analysis, data mining analysis, data quality analysis, and various service analyses were conducted. Consequently, it was found that compared to the Australian public data portal, the number and proportion of public data openings for disaster and safety management are significantly smaller in the Korean public data portal. The number of prevention datasets available in both countries accounts for the highest proportion in disaster and safety management. In addition, “supply management and resource support” accounts for the majority of Korean disaster response collaborations, whereas in the case of Australia, “comprehensive situation management” has a high proportion. In terms of data quality, Australian datasets include 69.54% of the total insoluble data, which implies inefficient data quality management. However, there are merely few Korean insoluble datasets. Through comparative analysis of the national operating systems, it was found that detailed guidelines for public data are available in Australia. However, the Korean public data portal is operated in accordance with the comprehensive Framework Act on Intelligence Informatization. Hence, a promotion strategy operation policy has to devise for the Korean public data portal to expand the usage of public data in the disaster and safety sector, along with quantitative growth policies that will increase the number and proportion of public data in the disaster and safety sector.
Learners’ Perceptions and Academic Achievement using Thinking Maps in Learning Chemistry at Ninth Grade
Authors: Wangda Karma , Ghalley Prem Kumar , Chhophel Sangay , Kinzang Sangay , Subba Kailash , Norbu Chuzang
Published: March 2022

Teaching Science innovatively has become a key motivation in educational parlance to uplift the academic achievement of the learners. There are numerous teaching strategies and skills developed by educationists, researchers and teachers to teach the subject creatively in the classroom. Thinking Maps is one such teaching strategy that enables the learner to make their thought processes visible during the learning processes. Although there are several studies indicating the positive impacts of using Thinking Maps as a teaching-learning strategy, there is no established study conducted in the Bhutanese context to investigate its effectiveness. The study on learners’ perception and academic achievement on the use of Thinking Maps as a learning strategy in class nine chemistry was aimed to investigate the effectiveness of using Thinking Maps as a teaching strategy in Damphu Middle Secondary School (DMSS). The pre-test and post-test were administered for both control and experimental groups to examine the performance level in chemistry before and after the intervention. Similarly, five-pointed Likert-type item survey questionnaires were administered for the experimental group to examine the influence of learners’ perceptions. In addition, anecdotal records were maintained throughout the treatment for qualitative information. Results were analysed using descriptive and inferential statistics. Document analysis was done for the anecdotal records. While pre-test and post-test showed a change in mean test scores, rating scores from survey questionnaires indicated a positive impression towards Thinking Maps as a learning strategy. The overall findings indicated that the use of Thinking Maps as a teaching-learning strategy improves learners’ achievement scores. It is recommended that teachers incorporate Thinking Maps as an alternative strategy into their lesson delivery.
Effect of Alkaline Additives over V-Based Catalysts Supported on y- Al2O3 for Propane Oxidative Dehydrogenation
Authors: Crivelaro Vinicius M. , Cortez Gilberto G.
Published: March 2022

The olefins product are more reactive than the corresponding alkanes, and may easily be super-oxidised into CO and CO2 in selective oxidation of alkanes. The proper balance of acid and base sites on the V-based catalyst surface plays a decisive role in limiting the complete oxidation of alkanes. Therefore, our goal was to evaluate the promoting effect of alkali metals and the support effect using boehmite as precursor for the propane oxidative dehydrogenation (ODH) reaction. Catalysts were prepared via co-impregnation of V and Na or K on a synthesized alumina support. The following characterization techniques were used: N2 adsorption-desorption, X-ray diffraction (XRD), temperature programmed reduction (TPR) and isopropanol decomposition testes to evaluate the acid-base character. The catalyst performance in the propane ODH reaction was evaluated at the O2:C3H8:He molar ratios of 5:2:4, 6:1:4, and 4:3:4. The K-doped catalysts exhibited higher propene selectivity owing to the modification of acid-base character that rendered the weaker interaction between olefinic intermediate and more basic catalyst surface. A high molar fraction of O2 of the reaction mixture minimized coke formation and a high reoxidation rate possibly increased catalytic activity and propene selectivity.
Polyomavirus Localized with Deep Learning Methods
Authors: Proença Maria da Conceição
Published: March 2022

This case study shows how to apply a deep learning algorithm to detect specific particles in transmission electron microscopy images. The main difficulty consists in the confusing background where a mix of artifacts introduced by the negative staining method coexist with biological debris, and low contrast inherent to the acquisition process of the samples. Considering that a high-resolution 3D reconstruction of virus particles or other macromolecular structures needs thousands of particles, the recent advances in deep-learning methods makes the reach of a comfortable number of particles attainable with a high level of confidence. Deep learning algorithms based on convolutional neural networks can overcome the major issues after a train and validation stage, and subsequently process thousands of similar images in a short amount of time, with a few seconds required for each image, localizing all the particles of interest with very few mistakes, or missed particles. We applied one of such algorithms to a dataset of polyomavirus images containing about 390 particles and evaluate its performance against human curation, verifying that 88.9% of the dataset were processed with zero false positive detections.
Antiatherosclerotic Activity of Methanolic Extract of Woodfordia fructicosa Flowers
Authors: Dharashive Vishweshwar M. , Ghiware N. B.
Published: March 2022

In the present investigation the methanolic extract of Woodfordia fructicosa flowers at the doses of 100, 200 and 400 mg/kg was investigated for antiatherosclerotic against high fat diet induced atherosclerosis and triton induced atherosclerosis. In high fat diet induced atherosclerosis several parameters of lipid profile such as total cholesterol (TC) and triglycerides (TG), lipoprotein profile such as low density lipoprotein cholesterol (LDLc), very low density lipoprotein cholesterol (VLDLc) and high density lipoprotein cholesterol (HDLc), atherosclerotic markers such as alanine transaminase (ALT), aspartate transaminase (AST), alkaline phosphatase (ALP), lactate dehydrogenase (LDH) and creatine phosphokinase (CPK) and atherogenic index parameters such as TC/HDLc, LDLc/HDLc were determined and found to significantly altered in induction control group treated with high fat diet. The histopathological studies of liver and heart tissue were also performed wherein high fat diet showed toxic effects on cardiac and hepatic tissue. Similarly, in triton induced atherosclerosis parameters of lipid profile such as total cholesterol, triglycerides, low density lipoprotein and very low density lipoprotein levels were determined and were found to be significantly increased in induction control group. methanolic extract of Woodfordia fructicosa flowers showed protection against the atherosclerosis by bringing back the altered parameters to normal I both the models and showing ameliorating effects against high fat diet induced hepatic and cardiac damage. The multistep putative action of methanolic extract of flowers of Woodfordia fructicosa is attributed to the prominent phytoconstituents namely ellagic acid estimated through HPTLC analysis of the extract. Thus the study exhibited the protective effect of methanolic extract of flowers of Woodfordia fructicosa against atherosclerosis.
SIALOLITO GIGANTE EM DUCTO DE GLÂNDULA SUBMANDIBULAR: RELATO DE CASO
Authors: Amaral Ingrid Esteves de Villemor , Malaquias Pietry dy Tarso Inã Alves , Figueiredo* Leonardo Moraes Godoy , Serra André Victor Pinto , Maranhão Samário Cintra , Soares Sued da Silva , De Azevedo Roberto Almeida
Published: March 2022

Objetivo: Descrever um caso clínico de Sialolito Gigante em ducto de glân- dula submandibular esquerda, tratado cirurgicamente e seu acompanhamento clínico até a alta, bem como discutir os aspectos epidemiológicos, patogenia e tratamento. A Sialolitíase representa a obstrução do sistema secretor de uma glândula salivar por elementos chamados sialolitos ou cálculos, que podem ocorrer no interior do ducto ou da glândula. Descrição do caso: Paciente do sexo masculino, 35 anos, apresentava sialolito gigante em ducto de glândula submadibular esquerda, diagnosticado através de achados clínicos e tomo-grafia computadorizada. O tratamento foi a remoção cirúrgica do cálculo e acompanhamento do paciente por um ano sem sinais de recidiva. Considerações finais: A etiologia exata da Sialolitíase não é conhecida, porém existem teorias relacionadas à deposição de cálcio devido à uma composição alcalina e viscosa da saliva, somada à concentração elevada de íons de cálcio e fosfato presentes. O trajeto longo e sinuoso do ducto de Wharton pode ser também um fator etiológico para deposição de minerais. O diagnostico é feito através do exame clinico com palpação do assoalho bucal e região submandibular com exames de imagens. Sialolitos com dimensões superiores a 15 mm são considerados gigantes. O tratamento varia de acordo com o quadro clínico do paciente e tamanho do cálculo, que pode ser feito de maneira conservadora ou através de abordagem cirúrgica.
SÍNDROME DE MARFAN: UM RELATO DE CASO CLÍNICO
Authors: Da Luz Síntique Priscila Alves , Torregrossa Vinícius Rabelo , Sarmento Viviane Almeida , Vieira Vinícius da Costa , Lamberti Patrícia Leite Ribeiro
Published: March 2022

Objetivo: Apresentar um relato de caso clínico de um paciente portador da Síndrome de Marfan (SM). Descriçãodocaso: Paciente do sexo masculino, apresentou-se  com  queixa  de  diarréia  crônica  há  pelo  menos  dois  anos, dor torácica, precordial e retro-orbitária. Durante a anamnese relatou ser portador da SM, sendo observados ao exame físico, sinais que corroboram para a confirmação do diagnóstico quanto à síndrome. São estes: tórax ca- renado, alongamento vertical facial e aracnodactilia. Ao exame intrabucal percebeu-se alterações bucais comuns a pacientes portadores da síndrome como: palato profundo, alterações oclusais e discreta retrognatia. Quanto às outras alterações sistêmicas características da SM identificadas no paciente foram: miopia, subluxação do cristalino e aneurisma da aorta ascendente. Considerações finais: O dentista deve conhecer os sinais da SM a fim de reduzir a morbimortalidade dos pacientes diante do alto risco de endocardite bacteriana associada a problemas cardiovasculares.
TRATAMENTO	DE	ANQUILOSE	DA	ARTICULAÇÃO	TEMPOROMANDIBULAR SUBSEQUENTE À TRAUMA MANDIBULAR EM PACIENTE PEDIÁTRICO.
Authors: Figueiredo Leonardo Morais Godoy , De Oliveira Thaís Feitosa Leitão , Valente Rômulo Oliveira de Hollanda , Gaspar Alfredo de Alquino , Sarmento Viviane Almeida
Published: March 2022

A  anquilose  da  articulação  temporomandibular  (ATM),  refere-se  à  união intracapsular do complexo disco-côndilo à superfície articular do osso temporal, com restrição dos movimentos articulares, e consequente limitação da abertura bucal, restrição da capacidade mastigatória, dificuldade de fonação, higiene bucal precária, além dos transtornos psicológicos como dificuldade de interação social. O presente estudo tem por objetivo relatar um caso clínico de anquilose unilateral na ATM direita em uma paciente do gênero feminino, com nove anos de idade e discutir os aspectos envolvidos no seu tratamento, como a utilização de artroplastia interposicional com enxerto costocondral e retalho de músculo temporal na cirurgia reconstrutiva da ATM. Conclui-se quea artroplastia interposicional  com  retalho  do  músculo  temporal  e  enxerto  costocondral representa uma excelente alternativa para o tratamento de paciente com anquilose da ATM em fase de crescimento, pois o enxerto costocondral possui características morfológicas semelhantes ao côndilo mandibular, potencial de crescimento, que possibilita que o enxerto acompanhe o surto de crescimento no caso de pacientes pediátricos. O resultado satisfatório do tratamento deve ser atribuído à correta escolha da técnica cirúrgica e ao acompanhamento fisioterápico e fonoaudiológico rigoroso.
DOENÇA PERIODONTAL: RISCO PARA DOENÇAS CARDIOVASCULARES?
Authors: Neto João Joaquim da Silva , Rapp Gisela Estela
Published: March 2022

Estudos recentes apontam uma possível associação entre doença periodontal e doenças cardiovasculares. Objetivou-se revisar na literatura acerca da perio- dontite como um possível fator de risco para as doenças cardiovasculares. Os artigos científicos foram identificados através de busca em fontes acessíveis pela internet, publicados em sites especializados como BVS, SCIELO e PUBMED. Os critérios de inclusão foram: artigos publicados nos idiomas inglês, português e espanhol no período de 2000 a 2013 utilizando os descritores periodontite e doenças cardiovasculares. Dos dezenove trabalhos revisados na literatura, treze apontaram evidências a favor e seis contra a periodontite ser um fator de risco para doenças cardiovasculares. Houve uma heterogeneidade grande nas metodologias aplicadas nos diferentes estudos revisados. São necessários mais estudos para uma melhor compreensão de um possível nível de risco da periodontite nas doenças cardiovasculares.
GRANULOMA PIOGÊNICO DECORRENTE DE PIERCING NASAL. RELATO DE CASO
Authors: Fortuna Tila , Rebouças Deyvid Silva , Cerqueira Lucas Souza , Lopes Gabriela Santos , Zerbinati Lívia Prates Soares
Published: March 2022

O Granuloma Piogênico é uma lesão relativamente comum, de crescimento rápido e indolor, acomete jovens adultos e mulheres, principalmente grávidas. Pode se apresentar como um nódulo exofítico, séssil ou pediculado de colora- ção avermelhada, de aspecto granulomatoso podendo ou não estar ulcerada. Geralmente associada a uma reação inflamatória, trauma, doenças autoimunes, neoplasias, infecções e uso de drogas. Os locais mais comuns para o apareci- mento da lesão são a mucosa oral e nasal. Seu tratamento pode ser cirúrgico ou não. Objetivo: Relatar um caso de granuloma piogênico em uma paciente jovem associado ao uso de piercing em asa do nariz direita. Descrição do caso: Paciente referiu aparecimento de uma lesão nodular, violácea com episódio de drenagem purulenta espontânea há 01 mês. Consideração final: Após o exame clínico optou-se pelo tratamento não-cirúrgico da lesão envolvendo apenas a remoção do piercing nasal associado ao uso de antibioticoterapia sistêmico, evitando assim possíveis comprometimentos estéticos. A paciente evoluiu com a regressão total da lesão, sem recidiva até o presente momento. Devido as características clínicas apresentadas, suspeitou-se de granuloma piogênico.
LESÃO PERIFÉRICA DE CÉLULAS GIGANTES: RELATO DE CASO DE GRANDES DIMENSÕES PERIPHERAL LESION OF GIANT CELLS: CASE REPORT OF LARGE DIMENSIONS
Authors: Garcia Juliana Jorge , Bispo Carine Rabelo , Neto João Nunes Nogueira , Dantas João Frank Carvalho , Sarmento Viviane Almeida
Published: March 2022

A lesão periférica de células gigantes, também conhecida como granulomaperiférico de células gigantes, é um processo proliferativo nãoneoplásico reacional causado por irritação ou trauma que ocorre exclusivamentena gengiva ou rebordo alveolar edêntulo. Pode se apresentarcomo um aumento de volume nodular, geralmente de até doiscentímetros de diâmetro e com coloração que varia do vermelho aovermelho azulado. Seu diagnóstico final é histológico e deve ser tratadocom excisão cirúrgica. Objetivo: O objetivo do presente trabalhoé descrever um caso clínico de lesão periférica de células gigantes degrandes dimensões. Relato de Caso: Homem adulto, na oitava décadade vida, procurou atendimento odontológico devido a crescimentotumoral indolor, de grandes dimensões, em rebordo alveolar inferiordesdentado. Realizada biópsia incisional foram observadas célulasgigantes em um estroma fibroso, que confirmou a suspeita de lesãoperiférica de células gigantes. A lesão foi totalmente removida sobanestesia local e o paciente encontra-se em proservação sem sinaisde recidiva. Considerações finais: O diagnóstico diferencial das lesõesem tecidos moles da boca é muito importante, a fim de permitir o tratamentoadequado do paciente. ABSTRACTPeripheral giant cell lesion, also known as giant cell peripheralgranuloma, is a non-neoplastic reactive proliferative process caused byirritation or trauma that occurs exclusively in the gingival or edentulousalveolar ridge. It may present as a nodular volume increase, usually upto two centimeters in diameter and with coloration ranging from redto bluish red. Its final diagnosis is histological and should be treatedwith surgical excision. Objective: The aim of the present study is todescribe a clinical case of large peripheral lesion of giant cells. CaseReport: Adult male, in the eighth decade of life, sought dental care dueto painful tumor growth, large, in the edentulous lower alveolar ridge.Incisional biopsy was performed giant cells in a fibrous stroma, whichconfirmed the suspicion of peripheral lesion of giant cells. The lesionwas completely removed under local anesthesia and the patient isundergoing proservation without signs of relapse. Final considerations:The differential diagnosis of soft-tissue lesions of the mouth is veryimportant in order to allow adequate treatment of the patient.
REABILITAÇÃO ESTÉTICA EM DENTES COM CALCIFICAÇÃO DISTRÓFICA: RELATO DE CASO CLÍNICO ESTHETICAL REHABILITATION IN TEETH WITH DYSTROPHIC CALCIFICATION: CASE REPORT
Authors: Nascimento Carolina Carmo do , Fernandez Cristal , Miranda Carolina Baptista , Pereira Tássia Monique dos Santos
Published: March 2022

Introdução: O traumatismo dental, além de alterações imediatascomo a fratura e o deslocamento do dente, pode provocar alteraçõesdo tipo: necrose ou calcificação distrófica. A calcificação distrófica éuma resposta pulpar ao trauma caracterizada pela deposição de tecidoduro no espaço pulpar geralmente acompanhada de alteraçõescromáticas do dente, provocando uma desarmonia do sorriso. Objetivo:O relato de caso aqui apresentado descreve a resolução estéticaem dentes com calcificação distrófica da polpa através de laminadoscerâmicos em associação ao clareamento dentário externo. Relatode caso clínico: Paciente do gênero masculino, 41 anos, apresentoucomo queixa principal a estética do seu sorriso devido a trauma nainfância. Ao exame clínico os dentes 11 e 21 exibiam coloração muitoescurecida em relação aos adjacentes, sem manifestar nenhuma respostaao teste de sensibilidade pulpar. Radiograficamente foi observadauma imagem sugestiva de obliteração total da câmara pulpar e doscanais radiculares com ausência de lesão periapical, sendo diagnosticadacomo calcificação distrófica da polpa. O tratamento proposto foio clareamento externo dos elementos dentários pela técnica combinada,devido a severidade do escurecimento, seguido pela instalaçãode laminados cerâmicos nas unidades comprometidas. ConsideraçõesFinais: A reabilitação em dentes com calcificação distrófica, porapresentar quase sempre um desafio no tratamento clínico, deve sercriteriosamente planejada e executada para a obtenção do sucesso.Diante do resultado obtido observou-se harmonia e evidente satisfaçãodo paciente.ABSTRACTIntroduction: In addition to immediate changes such as fracture andtooth dislocation, dental trauma can cause changes such as necrosisor dystrophic calcification. Dystrophic calcification is a pulp responseto trauma characterized by the deposition of hard tissue in the pulpspace usually accompanied by chromatic changes of the tooth, causinga smile disharmony. Objective: The case report presented here describesthe esthetical resolution in teeth with dystrophic calcificationof the pulp throught the ceramic laminates in association with externaldental whitening. Case report: Patient, male gender, 41 years old, presentedas main complaint the aesthetics of his smile due to trauma in
OBTENÇÃO DE MODELOS E APLICABILIDADE CIENTÍFICA DO MÉTODO DE ELEMENTOS FINITOS NA ODONTOLOGIA DEVELOP MODELS AND SCIENTIFIC APPLICABILITY OF THE FINITE ELEMENT METHOD IN DENTISTRY
Authors: Oliveira Marianna Gusmão Alves Dias de , Souza Luciana Thaís Rangel , Silva Brenda Sousa da , Bomfim Renan Souza , Carvalho Milena Tavares , Coelho Patrícia Maria
Published: March 2022

O Método dos Elementos Finitos (MEF) é uma análise matemática, amplamenteutilizada nas engenharias e se tornou de grande importânciapara a odontologia. Trata-se da fragmentação de um meio contínuoem pequenos elementos, em que permite através do meio computacional,a simulação de condições específicas e a determinação dos resultadosdesejados. A origem deste recurso ocorreu no final do séculoXVIII, mas só foi viabilizado após a ingressão dos computadores, amplificandosua utilização. Diante da contínua utilização desse métodona odontologia e das inúmeras vantagens com relação a outros métodosdisponíveis, torna-se importante o conhecimento da técnica. Oobjetivo deste trabalho é descrever o Método de Elementos Finitos edemonstrar técnicas ideais para a obtenção de modelos geométricosexperimentais na odontologia. Com o uso contínuo desse método empesquisas, e frente às suas vantagens em relação a outros disponíveis,torna-se importante o conhecimento da técnica, para que a utilizaçãodo mesmo possa propiciar benefícios científicos à OdontologiaABSTRACTThe Finite Element Method (FEM) is a mathematical analysis, widelyused in engineering and became of great importance for dentistry. It isthe fragmentation of a continuous medium into small elements, whichallows using the computational means, the simulation of specific conditionsand determining the desired results. The origin of this appealoccurred in the late eighteenth century, but it was only made possibleafter the ingression of computers, amplifying its use. Given the continueduse of this method in dentistry and many advantages over othermethods available, it is important the technique of knowledge so thatit provides scientific benefits to dentistry. The aim of this study is todescribe the Finite Element Method and demonstrate optimal techniquesfor obtaining experimental geometric models in dentistry. Withcontinued use of this method in research and in front of its advantagescompared to other available, it becomes important technique knowledge,that its use can provide benefits to the dental science.
ALTERNATIVA PARA RECONSTRUÇÃO ÓSSEA EM REGIÃO ANTERIOR DE MAXILA: RELATO DE CASO CLÍNICO ALTERNATIVE OF BONE RECONSTRUCTION IN ANTERIOR REGION OF MAXILLA: CASE REPORT
Authors: Moura Luana Santos de , Júnior Edval Reginaldo Tenório , Regis Luciano , Silveira Bruno Botto de Barros da
Published: March 2022

Com o advento da Implantodontia moderna, tem sido cada vez maiora utilização de enxertos ósseos frente à perda fisiológica, traumáticaou patológica a que os ossos maxilares são submetidos. Objetivo: Opresente trabalho visa, por meio de um relato de caso clínico, abordara possibilidade de associação de enxertos ósseos na reconstrução dedefeito ósseo maxilar para instalação de implantes dentários. Descriçãodo Caso: Paciente M.A.G, gênero feminino, faioderma, compareceuao consultório particular encaminhada pela clínica de endodontia,para exodontia da unidade 22 devido à fratura radicular. Aoexame clínico, observou-se a presença de fístula ativa associada a estaunidade, e através de exame de imagem verificou-se área hipodensacompatível com extensa lesão periapical. O plano de tratamento incluiuexodontia da unidade fraturada, enucleação da lesão associada,reconstrução do defeito ósseo com enxerto autógeno e liofilizado bovinoe posterior reabilitação com implante dentário e prótese sobreimplante. O caso encontra-se com 3 anos de acompanhamento, comresultado estético e funcional satisfatório. Conclusão: Diferentes tiposde biomateriais agregados apresentam-se como uma técnica alternativaeficaz e de menor morbidade, possibilitando o reparo de defeitoscríticos em osso maxilar para posterior reabilitação.ABSTRACTWith the advent of modern Implantology, there has been increasingthe use of bone grafts by the physiological, traumatic or pathologicalloss to which the maxillary bones are submitted. Objective: This studyaims, through a case report, to describe the possibility of associationof bone grafts in the reconstruction of maxillary bone defect for dentalimplants. Case Description: The patient M.A.G, female, faioderm,attended the private practice sent by the endodontic clinic for unit22 extraction due to dental root fracture. At clinical examination wasobserved the presence of active fistula associated with the unit, andthrough image examination was verified hypodense area, compatiblewith extensive periapical lesion. The treatment plan included fractureunit extraction, enucleation of the associated lesion, reconstruction ofthe bone defect with autogenous graft and lyophilized bovine bone,and subsequent rehabilitation with dental implants and prostheses.The case has 3 years of follow-up with satisfactory aesthetic and functionalresults. Conclusion: Different types of aggregated biomaterialsare presented as an effective alternative technique, of lower morbidity,allowing the repair of critical defects in maxillary bone for later rehabilitation.
APLICAÇÃO DA FIBRINA RICA EM PLAQUETAS EM CIRURGIA DE TERCEIROS MOLARES: AVALIAÇÃO DO SANGRAMENTO (PARTE I) APPLICATION OF PLATELET-RICH FIBRIN ON THIRD MOLAR SURGERY: EVALUATION OF THE BLEEDING (PART I)
Authors: Santos Gonçalves Rafael Mício , Conceição Verbênia Silva , Bezerra Rafael Macedo , De Almeida Junior Vildeman Rodrigues , Teixeira Cangussu Maria Cristina , Santana Sardinha Sandra de Cássia
Published: March 2022

Objetivo: Avaliar os efeitos da aplicação do coágulo leucoplaquetáriona redução do sangramento após exodontias de terceiros molares mandibulares.Materiais e métodos: Foram incluídos na pesquisa pacientessaudáveis, não gestantes, entre 18 e 60 anos com indicação de extraçãobilateral dos terceiros molares inferiores. Os pacientes foram conduzidospara a coleta de sangue, seguida da centrifugação e obtenção do coáguloleucoplaquetário. Na sequência, procedeu-se o sorteio do lado a ser operado.Em seguida, definiu-se o grupo teste onde, após a extração, houvea colocação do coágulo e posterior síntese cirúrgica. O grupo controlecorrespondeu ao lado contralateral e não se utilizou o referido coágulo,apenas a síntese cirúrgica. Resultados: Foram avaliados doze sítios cirúrgicos,em seis pacientes, três do sexo feminino e três do sexo masculino.Após análise estatística com o teste do Qui-quadrado, comparativamente,entre os grupos teste e controle, para os três períodos pós-operatórios,não houve relevância estatística (p=0,65) com relação ao efeito docoágulo leucoplaquetário na diminuição do sangramento. Conclusão: Ocoágulo leucoplaquetário não se mostrou estatisticamente relevante nadiminuição do sangramento pós-operatório de cirurgias de terceiros molaresmandibulares para os períodos avaliados.Purpose: To evaluate the effects of the application of the leucoplaquetaryclot in the reduction of bleeding after mandibular third molar extractions.Methods: The patients included were healthy, non-pregnant patients, between18 and 60 years old with indication of bilateral extraction of thelower third molars. The patients were taken to the blood harvesting, followedby the centrifugation and the obtainment of the leucoplaquetaryclot. Subsequently, the lot was drawn on the side to be operated. Then, thetest group was defined, on which, after the extraction, the clot was placedand surgical synthesis was performed. The control group, correspondedto the opposite site and in the referred site the clot was not placed,therefor it was only sutured. Results: Twelve surgical sites, in six patientswere evaluated, three females and three males, and, after statistical analysiswith the Chi-square test, comparatively, between the test and controlgroups, for the three post-operative periods evaluated, there was no statisticalrelevance (p=0,65) in relation to the effect of the leucoplaquetaryclot in the reduction of bleeding. Conclusions: The leucoplaquetary clotwas not statistically relevant in the reduction of postoperative bleedingfrom third molar mandibular surgeries for the periods evaluated.
ABORDAGEM DE FRATURA PANFACIAL EM EMERGÊNCIA: RELATO DE CASO EMERGENCY PANFACIAL FRACTURE APPROACH: CASE REPORT
Authors: Cardoso dos Santos Luis Claudio , Fialho Priscila Vital , Pacheco Brito Thainá Araújo , Dultra Joaquim de Almeida , Araújo Alves Dultra Fátima Karoline
Published: March 2022

Objetivo: O presente estudo consiste em relatar o caso clínico de um pacientecom fratura panfacial e abordagem cirúrgica de emergência pararealização de fixação interna rígida e sua reabilitação. Descrição do Caso:Paciente do gênero masculino, 46 anos, vítima de acidente automobilístico,deu entrada no serviço de emergência do Hospital Geral do Estado daBahia (HGE-BA) cursando com múltiplas fraturas em face. Foi planejadaabordagem, sob anestesia geral e intubação orotraqueal com derivaçãosubmentual, em razão de fratura de base anterior de crânio, fratura dosossos próprios nasais e necessidade de bloqueio maxilomandibular notrans-cirúrgico. Paciente acompanhado no pós-operatório, evoluindocom projeção facial satisfatória, oclusão estável, boa permeabilidade nasale sem deformidade dentofacial. Conclusão: As fraturas panfacias sãodesafiadoras, e seu planejamento cirúrgico deve ser estabelecido visandoo posicionamento adequadado dos fragmentos fraturados e a preservaçãodas estruturas anatômicas faciais, devolvendo função e garantindo omínimo de sequelas para o pacientePurpose: The present study consists in reporting the clinical case of apatient with panfacial fracture, with an emergency surgical approach toperform rigid internal fixation for patient rehabilitation. Case description:A 46-year-old male patient, victim of an automobile accident, was admittedto the emergency department of the Hospital Geral do Estado daBahia (HGE-BA), attending multiple fractures in the face. The approachwas planned under general anesthesia and orotracheal intubation withsubmental shunt, due to anterior skull fracture, fracture of the nasal bones and the need for maxillomandibular block in the trans-surgical. Patient followed postoperatively, evolving with satisfactory facial projection, stable occlusion, good nasal permeability, and no dentofacial deformity.Conclusions: Panfacial fractures are challenging, and their surgical planningmust be established aiming at the adequate positioning of fracturedfragments and preservation of facial anatomical structures, restoring functionand ensuring a minimum of sequelae for the patient.
TOXINA BOTULÍNICA TIPO-A: UMA ALTERNATIVA DE TRATAMENTO PARA O BRUXISMO, REVISÃO DE LITERATURA BOTULINUM TOXIN TYPE-A: AN ALTERNATIVE FOR BRUXISM TREATMENT: LITERATURE REVIEW
Authors: Azevêdo Tharcilla Calíope
Published: March 2022

O bruxismo é caracterizado pelo ato parafuncional de apertar ou rangerdos dentes, que pode ocorrer de maneira consciente ou inconsciente,durante o sono ou em vigília. Por ser de etiologia complexa, ainda nãoé possível estabelecer um tratamento padrão para todos os pacientes. Aterapêutica com toxina botulínica tipo A (TXB-A) é conservadora, dandoao cirurgião dentista a opção de parar a terapia em qualquer momento eretornar ao estado inicial sem efeitos adversos. Este artigo tem a intençãode demonstrar que a TXB-A pode ser válida no dia a dia da clínica odontológicapara o tratamento do Bruxismo em pacientes onde os sintomasnão foram controlados através dos recursos tradicionalmente oferecidos. Bruxism is characterized by the parafunctional act of grinding or clenchingthe teeth, which may occur in a conscious or unconscious way duringsleep or vigil. Due to its complex ethiology it is not possible yet to stablisha standard treatment to all patients. Treatments using botulinum toxin(TXB-A) are conservative, the dentist may stop at any given time, returningto its starting point, without any side effects. This paper has the intent ofshowing that treating bruxism with TXB-A is a valid alternative for patientswho did not have success with the traditional dental approach.