21 research outputs found

    Análise da resistência à fadiga entre pilares retos sólidos e anatômicos do sistema cone morse

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    Objective: Examine the fatigue resistance of the joint implant-abutment, in straight and anatomical types, submitted to cyclic loads. Material and methods: We used 37 implants (3.75 x 11mm) with morse taper system and 37 abutments, divided into two groups (n = 16: straight abutment, n=21 anatomical abutment, Neodent® Curitiba, Paraná, Brazil). The sets were submitted to cyclic testing using servo-hydraulic equipment, fixing the number of cycles at 5 million. Three sets implant-abutment of each group were subjected to bending tests to determine the maximum load resistance of the samples, which served as a parameter to measure the cyclic tests. We evaluated number of cycles, load and bending moment of the samples. The Fisher’s Test and simple independent test of Mann Whitney were applied. To characterize the survival timings of the test samples, the log-rank test was used. Results: Out of the 31 abutments cyclically tested, 17 (54.8%) fractured in a number of cycles below 5 million established, and 8 (25.8%) belonged to the group of the straight abutments and 9 (29%) of the anatomical abutments, 14 samples (45.2%) resisted the cyclic (5-straight abutments and 9-anatomical abutments). According to Fisher's Exact Test showed no statistical difference between groups (p = 0.394). In relation to the load (N) submitted during the cyclic test, the straight abutments showed larger fracture loads (mean: 566N±59N) that anatomical abutments (mean: 367N±80N). In addition, the minimum and maximum load values occurring in fractured samples of the straight group were higher compared to the anatomical. Regarding the average values of bending moment (Nmm), the Mann Whitney showed variations of the moment in both groups, and the fractured samples behaved slightly significant (p = 0.09). Conclusion: In cyclic fatigue tests, the solid straight abutments obtained average load and bending moment greater than the anatomical abutments. Considering fatigue strength of the fractured samples, there was a significant difference in the load variable and bending moment, with the straight abutment showing higher mean, moreover, for the varying cycles, the two types of abutments (straight and anatomical) behaved mechanically in a similar way.Fundação de Apoio a Pesquisa e à Inovação Tecnológica do Estado de Sergipe - FAPITEC/SEObjetivo: Analisar a resistência à fadiga dos conjuntos implante/pilar, nos tipos reto e anatômico, submetidos a cargas cíclicas. Material e métodos: Foram utilizados 37 implantes (3.75 x 11mm) com sistema cone morse e 37 pilares, divididos em dois grupos (n=16: pilar reto, n=21: pilar anatômico, Neodent® Curitiba, Paraná, Brasil). Os conjuntos foram submetidos a testes de flexão e testes cíclicos, fixando-se o número de ciclos em 5 milhões, em equipamento servo-hidráulico. Três conjuntos implante/pilar de cada grupo foram submetidos a testes de flexão para determinação da carga máxima de resistência das amostras, que serviu como medida parâmetro para os ensaios cíclicos. Foram avaliados número de ciclos, carga e momento fletor das amostras. O Teste de Fisher e teste independente simples de Mann Whitney foram aplicados. Para caracterizar os tempos de sobrevivência das amostras em ensaio, foi utilizado o Teste Log-Rank. Resultados: Dos 31 pilares testados ciclicamente, 17 (54,8%) fraturaram em um número de ciclos abaixo dos 5 milhões estabelecidos, sendo que 8 (25,8%) pertenciam ao grupo dos pilares retos e 9 (29%) dos pilares anatômicos; 14 amostras (45,2%) resistiram aos testes cíclicos (5-pilares retos (16,1%) e 9-pilares anatômicos (29,1%). De acordo com o Teste Exato de Fisher não houve diferença estatística entre os grupos (p=0,394). Em relação à carga (N) submetida durante o ensaio cíclico, os pilares retos apresentaram cargas maiores de fratura (média: 566N±59N) que os pilares anatômicos (média: 367N±80N). Além disso, os valores mínimos e máximos de carga ocorridos nas amostras fraturadas do grupo reto foram maiores em relação aos anatômicos. Quanto aos valores médios de momento fletor (Nmm), o Teste de Mann Whitney constatou variações do momento nos dois grupos, as amostras fraturadas comportaram-se de maneira ligeiramente significante (p=0,09). Conclusão: Nos ensaios cíclicos de fadiga, os pilares retos sólidos obtiveram médias de carga e de momento fletor maiores que os pilares anatômicos. Considerando resistência à fadiga das amostras fraturadas, houve diferença significante nas variáveis carga e momento fletor, com o pilar reto mostrando maiores médias; além disso, quanto à variável ciclo, os dois tipos de pilares (retos e anatômicos) comportaram-se mecanicamente de maneira semelhante

    Evaluation of sealing between abutment and inner connection of cone morse dental implant: microgaps between implant and abutment

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    Introdução: Aspectos biomecânicos relacionados à adaptação de próteses fixas sobre implantes estão diretamente asso­ciados ao sucesso do tratamento. Objetivo: Avaliar in vitro a presença de microgaps na união formada pelo pilar e a conexão interna do implante dentário Cone Morse. Materiais e método: Dois grupos de implantes foram analisados. O primeiro grupo (n = 16) utilizou materiais (implantes e pilares) do mesmo fabricante, enquanto o segundo grupo (n = 16) utilizou materiais de diferentes fabricantes. Os conjuntos foram enviados para o microscópio eletrônico de varredura, onde foram tomadas as medidas dos microgaps formados entre a conexão do implante e o pilar. Resultados: Os resultados obtidos foram submetidos à avaliação estatística (Mann-Whitney-U) das medidas de dispersão e à tendência central dos valores (desvio padrão e médio). No grupo 1, a média encontrada foi de 5,69 μm e o desvio padrão (SD) foi de 8,46 μm. O grupo 2 apresentou média de 1,24 μm e SD: 0,44 μm. A diferença encontrada foi estatistica­mente significativa (p = 0,002). Conclusão: Dentro da limitação deste estudo, os resultados indicam que o grupo formado por implante e abutment de diferentes fabricantes oferece menores valores de microgaps e, portanto, uma melhor adaptação in vitro de componentes. DESCRITORES | Implantes Dentários; Dente Suporte; Microscopia Eletrônica de Varredura.Introduction: The adaptation of prostheses fixed over implants involves biomechanical aspects that are directly associated with treatment success. Objective: The aim of this in vitro study was to evaluate the presence of microgaps in the abutment/inner connection interface of cone morse dental implants. Materials and methods: Two groups of implants were analyzed. The first group (n = 16) employed single-manufacturer dental implants and abutments, whereas the second group (n = 16) combined multi-manufacturer materials. The sets were analyzed through scanning electron mi­croscopy, wherein microgaps between the implant connection and the abutment were observed. Results: Group 1 had an average microgap of 5.69 μm (SD ± 8.46 μm). Group 2 had an average microgap of 1.24 μm (SD ± 0.44 μm). A significant difference was found between the two groups (p = 0.002). Conclusion: Within the limitations of this study, results suggest that the group formed by multi-manufacturer implants and abutments (group 2) had smaller microgap values, and, therefore, a higher in vitro adaptation of components. DESCRIPTORS | Dental Implants; Dental Abutments; Scanning Electron Microscopy

    The need to strengthen Primary Health Care in Brazil in the context of the COVID-19 pandemic

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    The emergence of severe acute respiratory coronavirus 2 (SARS-CoV-2) and its association with severe pneumonia and deaths has exposed gaps in the health systems of several countries worldwide. Although the necessary focus has been to care for hospitalized patients, the strengthening of Primary Health Care (PHC) actions is necessary. PHC is the gateway to the health system in several countries, including Brazil and it plays a role in preventing, protecting, promoting, and treating individuals and communities. Brazil, like other countries, has faced the SARS-CoV-2 pandemic. As Brazil has a universal and decentralized health system, in which PHC has been the model of health re-organizing the health system; here we reflected the importance of strengthening PHC in Brazil in the times of coronavirus disease 2019 pandemic

    Perfil dos atendimentos psiquiátricos realizados pelo Serviço de Atendimento Móvel de Urgência, Aracaju, janeiro/2010 a fevereiro/2011

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    The National Emergency Policy guarantees that the urgent medical, surgical, gynecological, obstetric, psychiatric, and pediatric situations, as well as other ones related to external causes may be assisted. SAMU-192, which was established by Decree 1.864/03, is the department which is responsible for answering all urgent calls concerning the health care of the population. The psychiatric crisis is seen as an emergency, since the user needs quick service in order to avoid that this person gets hurt or even hurts someone else. Because of this, the psychiatric care, performed by SAMU Aracaju, from January/2010 to February/2011 was characterized. The survey was conducted in the database of SAMU Aracaju. Regarding gender, it was found that 69% were male and the main occurrences were classified as "busy" (51%) and transfers (23%). The main destination of the patients was the Psychiatric Emergency of the city (59.3%). It can be concluded that the SAMU Aracaju is an important means to assist the psychiatric emergency, so it is important that managers constantly monitor these calls seeking intersectoral planning that may contribute to the optimization of all health services and therefore generate good health care to the entire population.La política Nacional de Urgencia y Emergencia garantiza la atención integral para atender la emergencia clínica, quirúrgica, ginecológica, obstétrica, psiquiatría, pediatría y por causas externas. El SAMU-192, que fue establecido por el Decreto 1.864/03, es el departamento encargado de responder a todas las convocatorias de la población de atención de urgencia y de emergencia. La crisis psiquiátrica es vista como una emergencia, ya que el usuario necesita atención tan pronto como sea posible para evitar un posible daño a sí mismo o a otros. Por eso, se quiso caracterizar la atención psiquiátrica realizada por el SAMU de Aracaju, en el período de Enero/2010 Febrero/2011. La investigación se realizó en la base de datos del SAMU Aracaju. En cuanto al género, se encontró que el 69% eran hombres y las razones principales de los sucesos fueron clasificados como "ocupado" (51%) y las transferencias (23%). El principal destino de las visitas fue el hospital de Emergencias Psiquiátricas en la ciudad (59,3%). De todos modos, se concluyó que la SAMU Aracaju es un medio importante para atender la emergencia psiquiátrica, por lo que es importante que los directivos realicen un seguimiento constante de estas llamadas en busca de la planificación intersectorial que contribuyan a la optimización de todos los servicios de salud y por lo tanto, generar una atención de calidad a toda la población.A Política Nacional de Urgência e Emergência garante atenção integral ao atendimento das urgências clínicas, cirúrgicas, gineco-obstétricas, psiquiátricas, pediátricas e as relacionadas às causas externas. O SAMU-192, que foi instituído através da Portaria 1.864/03, é o serviço responsável por atender todos os chamados de urgência e emergência da população. A crise psiquiátrica é vista como uma urgência, visto que o usuário necessita de atendimento o mais rápido possível para evitar possíveis danos a si mesmo ou de outras pessoas. Por conta disso objetivou-se caracterizar os atendimentos psiquiátricos realizados pelo SAMU Aracaju, no período de janeiro/2010 a fevereiro/2011. A pesquisa foi realizada no banco de dados do SAMU Aracaju. Em relação ao gênero, verificou-se que 69% foram do sexo masculino e os principais motivos das ocorrências foram classificados como “agitado” (51%) e transferências (23%). O principal destino final dos atendimentos foi a Urgência Psiquiátrica do município (59,3%). Enfim, pôde-se concluir que o SAMU Aracaju é um importante meio para o atendimento das urgências psiquiátricas, por isso, é importante que gestores realizem constantemente o monitoramento desses atendimentos visando planejar ações intersetoriais que contribuam para a otimização de todos os serviços de saúde e, consequentemente, gerem atendimentos de qualidade a toda população

    Rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART): Study protocol for a randomized controlled trial

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    Background: Acute respiratory distress syndrome (ARDS) is associated with high in-hospital mortality. Alveolar recruitment followed by ventilation at optimal titrated PEEP may reduce ventilator-induced lung injury and improve oxygenation in patients with ARDS, but the effects on mortality and other clinical outcomes remain unknown. This article reports the rationale, study design, and analysis plan of the Alveolar Recruitment for ARDS Trial (ART). Methods/Design: ART is a pragmatic, multicenter, randomized (concealed), controlled trial, which aims to determine if maximum stepwise alveolar recruitment associated with PEEP titration is able to increase 28-day survival in patients with ARDS compared to conventional treatment (ARDSNet strategy). We will enroll adult patients with ARDS of less than 72 h duration. The intervention group will receive an alveolar recruitment maneuver, with stepwise increases of PEEP achieving 45 cmH(2)O and peak pressure of 60 cmH2O, followed by ventilation with optimal PEEP titrated according to the static compliance of the respiratory system. In the control group, mechanical ventilation will follow a conventional protocol (ARDSNet). In both groups, we will use controlled volume mode with low tidal volumes (4 to 6 mL/kg of predicted body weight) and targeting plateau pressure <= 30 cmH2O. The primary outcome is 28-day survival, and the secondary outcomes are: length of ICU stay; length of hospital stay; pneumothorax requiring chest tube during first 7 days; barotrauma during first 7 days; mechanical ventilation-free days from days 1 to 28; ICU, in-hospital, and 6-month survival. ART is an event-guided trial planned to last until 520 events (deaths within 28 days) are observed. These events allow detection of a hazard ratio of 0.75, with 90% power and two-tailed type I error of 5%. All analysis will follow the intention-to-treat principle. Discussion: If the ART strategy with maximum recruitment and PEEP titration improves 28-day survival, this will represent a notable advance to the care of ARDS patients. Conversely, if the ART strategy is similar or inferior to the current evidence-based strategy (ARDSNet), this should also change current practice as many institutions routinely employ recruitment maneuvers and set PEEP levels according to some titration method.Hospital do Coracao (HCor) as part of the Program 'Hospitais de Excelencia a Servico do SUS (PROADI-SUS)'Brazilian Ministry of Healt

    Qualidade de vida em saúde bucal e hábitos deletérios em crianças e adolescentes com asma e rinite alérgica

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    Introduction: Asthma is a global health problem with 2.5 million deaths annually. Most patients with asthma have associated rhinitis. Both pathologies can influence the stomatognathic system. The presence of deleterious oral habits (DOH) can cause structural and functional changes in the components of this system and influence the quality of life in oral health of individuals. Objective: (1) To evaluate the association between deleterious oral habits (DOH) and asthma in children; (2) To investigate the oral health-related quality of life index (OHRQL) and DOH in children and adolescents with asthma and allergic rhinitis according to disease control. Method: The study included two complementary designs: i) systematic review and meta-analysis to verify the association between DOH and asthma in children and; ii) cross-sectional study including children and adolescents aged 6 to 17 years, diagnosed with asthma and rhinitis, seen between 2020 and 2021 in the Pediatric Allergy Outpatient Clinic of the University Hospital of the Universidade Federal de Sergipe. A structured interview was carried out, applying questionnaires for asthma/rhinitis control, a socioeconomic and demographic questionnaire, and the Oral Health Impact Profile (OHIP-14) to check the HRQL. A clinical oral examination was performed to observe the occlusal condition, dental abnormalities, and caries index. Results: Five studies were included in the systematic review and meta-analysis. Information was collected on presence of HOD in children with and without asthma. The meta-analysis showed an association between bottle feeding and asthma (OR = 1.25; 95% CI 1.13 to 1.38; p < 0.001) and between pacifier use and asthma (OR = 1.11; 95% CI 1.00 to 1.24; p = 0.05). There was no association for nail biting habit, thumb sucking, and asthma. The cross-sectional study included 73 individuals. The median (interquartile range [IIQ]) age was 10 (8-13) years. Fifty (68.5%) participants were considered to have satisfactory control of asthma and rhinitis diseases. Forty-nine (67.1%) had some non-nutritive sucking habit. Class I occlusion predominated (n = 60, 82.1%). The mean DTM presented a median (IIQ) of 1 (0-3), with no statistical difference between the control and non-control groups. Among the developmental and eruption disorders observed, the most frequent were diastema (48%), dental stains (31.5%) and rotations (23.3%). There was no difference in overall OHIP-14 scores between the 'controlled' and 'uncontrolled' groups (4.5 [2.0-8.0] vs 3.0 [2.0-10.0], p = 0.976), as well as for six of the seven OHIP-14 domains. Children with controlled disease had lower HRQL scores in the physical pain domain when compared to children without disease control (1.0 [0.0-2.0] vs 2.0 [1.0-4.0], p = 0.018). Conclusions: Bottle feeding and pacifier use were associated with asthma in children. Although most children had a non-nutritive sucking habit, oral health did not negatively impact quality of life regardless of disease control, except for the physical pain domain.Introdução: A asma é um problema de saúde global com 2,5 milhões de mortes anuais. A maioria dos pacientes com asma tem rinite associada. As duas patologias podem influenciar o sistema estomatognático. A presença de hábitos orais deletérios pode causar alterações estruturais e funcionais nos componentes desse sistema e influenciar a qualidade de vida em saúde bucal dos indivíduos. Objetivos: (1) Avaliar a associação entre hábitos orais deletérios (HOD) e asma em crianças; (2) Investigar o índice de qualidade de vida relacionada à saúde bucal (QVRSB) e hábitos orais deletérios (HOD) em crianças e adolescentes com asma e rinite alérgica conforme o controle da doença. Método: O estudo incluiu dois desenhos complementares: i) revisão sistemática e meta-análise para verificação de associação entre HOD e asma em crianças e; ii) estudo transversal incluindo crianças e adolescentes de 6 a 17 anos, com diagnóstico de asma e rinite, atendidos entre 2020 e 2021 no Ambulatório de Alergia Pediátrica do Hospital Universitário da Universidade Federal de Sergipe. Uma entrevista estruturada foi realizada, aplicando-se questionários para controle da asma/rinite, questionário socioeconômico e demográfico e o Oral Health Impact Profile (OHIP-14) para averiguação do índice de QVRSB. Realizou-se exame clínico oral para observação da condição oclusal, alterações dentárias e índice de cárie. Resultados: Cinco estudos foram incluídos na revisão sistemática e meta-análise. Foram coletadas informações sobre presença de HOD em crianças com e sem asma. A meta-análise mostrou associação entre a alimentação por mamadeira e asma (OR = 1,25; 95% CI 1,13 a 1,38; p < 0,001) e entre o uso de chupeta e asma (OR = 1,11; 95% CI 1,00 a 1,24; p = 0,05). Não houve associação para o hábito de roer unhas, chupar dedos e asma. O estudo transversal incluiu 73 indivíduos. A mediana (intervalo interquartil [IIQ]) de idade foi 10 (8-13) anos. Cinquenta (68,5%) participantes foram considerados com controle satisfatório das doenças asma e rinite. Quarenta e nove (67,1%) possuíam algum hábito de sucção não-nutritiva. A oclusão Classe I predominou (n = 60, 82,1%). O CPO-D médio apresentou mediana (IIQ) de 1 (0-3), não havendo diferença estatística entre os grupos ‘controlado’ e ‘não-controlado’. Dentre os distúrbios do desenvolvimento e erupção observados, os mais frequentes foram: diastema (48%), manchas dentárias (31,5%) e rotações (23,3%). Não houve diferença entre os escores de QVRSB geral entre os grupos ‘controlado’ e ‘não-controlado’ (4,5 [2,0-8,0] vs 3,0 [2,0-10,0], p = 0,976), assim como para seis dos sete domínios do OHIP-14. Crianças com doença controlada apresentaram menores escores de QVRSB no domínio dor física quando comparadas a crianças sem controle da doença (1,0 [0,0-2,0] vs 2,0 [1,0-4,0], p = 0,018). Conclusões: Alimentação por mamadeira e uso de chupeta foram associados a asma em crianças. Embora a maioria das crianças possuísse hábito de sucção não-nutritiva, a saúde bucal não causou impactos negativos na qualidade de vida, independentemente do controle das doenças, exceto para o domínio dor física.Aracaj

    Gravidarum granuloma associated to an osseointegrated implant: case report

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    Introduction: Pyogenic granuloma, known as gravidarum granuloma or pregnancy granuloma, is a benign non-neoplastic reactive oral lesion that may occur in pregnant women. It is usually a highly vascularized mass, which has exophytic characteristics, and it may be sessile or pedunculated. Its surface has usually a smooth or lobular aspect, with its coloration ranging from red to pink. The pain sensitivity will depend on the degree of injury involving the traumatic lesion, but it is frequently painless. Adjacent areas to dental implants are rare for the appearance of this type of granuloma. Objective: The aim of this case report was to present a clinic case of gravidarum granuloma in the region of lower lingual gingiva, adjacent to an osseointegrated implant in a 33-year-old woman, with 3 months of gestation, who had the lesion since the beginning of her pregnancy. Conclusion: Gravidarum granuloma was diagnosed in association to a dental implant, and it highlights the necessity for improvements of oral hygiene in the peri-implant regions. Surgical treatment with excisional biopsy plus hygiene control were enough to settle the case
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