Adhesive strength of fiberglass posts treated with thio-urethane-based experimental silanes.

PURPOSE: The aim of this study was to evaluate the adhesive bond strength of fiberglass posts treated with experimental silanes based on thio-urethane and submitted to thermo and mechanical cycles. MATERIALS AND METHODS: Bovine roots were divided into six groups: RX-RU2 (RelyX CP + RelyX U200); PETMP-HDDI-RU2 (PETMP-HDDI + RelyX U200); PETMP-BDI-RU2 (PETMP-BDI + RelyX U200); RX-RU (RelyX CP + RelyX Ultimate); PETMP-HDDI-RU (PETMP-HDDI + RelyX Ultimate); PETMP-BDI-RU (PETMP-BDI + RelyX Ultimate). One slice from each root third (n=10) was submitted to the push-out test and the values evaluated with R Program statistical analysis, while the failure pattern assessed in percentage. RESULTS: Among root thirds, RX-RU2 promoted greater strength at the cervical and apical thirds; PETMP-HDDI-RU2 showed highest values at the three thirds; and PETMP-BDI-RU2 was strongest at the apical third. RX-RU presented higher strength at the apical third, and PETMP-HDDI-RU and PETMP-BDI-RU had similar values at the three thirds. In each root third, PETMP-HDDI-RU2 showed similar strength at all thirds, and similar strength at the apical third was observed for other associations. Mixed and adhesive failures predominated. CONCLUSION: Experimental silanes promoted different bond strength values in the adhesion of fiberglass posts to the root thirds, with better results for PETMP-HDDI silane. The root region did not influence the failure pattern and most slices showed mixed (MCDP) or adhesive (ADP) failure.

Transitional Era: from analogical to digital workflow in oral rehabilitation: a case report / Era de transição: do fluxo de trabalho analógico para o digital em reabilitação oral: relato de caso

ABSTRACT Digital dentistry is a ubiquitous phenomenon nowadays but it requires access to technologies and learning curve. To aid digital workflow implementation, digital steps can be progressively incorporated in conventional workflows. We aimed to demonstrate a multidisciplinary oral rehabilitation performed mixing conventional procedures with digital open-source software programs and low-cost devices. A 46-year-old female patient had photographs, intraoral scans, and cone-beam computed tomography obtained and used in combination with conventional clinical exams to develop a treatment plan. Power point software was used for digital smile planing and Horos for digital implant planning. The digital dataset were used to guide conventional clinical procedures (scaling and root planning, gingivoplasty, in-office tooth bleaching, fiber-post restoration, implant and bone graft placement, teeth preparation, and protheses design and milling). The inclusion of digital steps in the conventional workflow enabled the performance of rehabilitation procedures with reduced clinical time and increased predictability, favoring the overall workflow and the communication among the different dental specialties. A mixed workflow can progressively lead to an exclusively digital workflow as technologies become accessible and learning curve is coped.

RESUMO Atualmente, a Odontologia digital é um fenômeno onipresente, contudo exige acesso à tecnologia e curva de aprendizado. Para auxiliar na implementação de fluxos de trabalho digitais, etapas digitais podem ser progressivamente incorporadas nos fluxos de trabalho convencionais. Nosso objetivo foi demonstrar uma reabilitação oral multidisciplinar realizada combinando procedimentos convencionais e ferramentas digitais de baixo custo e acesso aberto. Uma paciente de 46 anos teve fotografias, exames intraorais e tomografia computadorizada de feixe cônico obtidos e usados em combinação com exame clínico convencional para desenvolvimento de um plano de tratamento. O software Power Point foi utilizado para o planejamento digital do sorriso e o Horos para o planejamento digital dos implantes. O conjunto de dados digitais foi usado para orientar a execução dos procedimentos clínicos convencionais (raspagem e alisamento radicular, gengivoplastia, clareamento dental, restauração com pino de fibra de vidro, inserção de implantes e enxerto ósseo, preparos protéticos e design e fresagem protética). A inclusão de etapas digitais no fluxo de trabalho convencional permitiu redução do tempo clínico na realização da reabilitação aliado à maior previsibilidade, favorecendo o fluxo de trabalho e a comunicação entre as diferentes especialidades odontológicas. O fluxo de trabalho misto pode progressivamente levar a um fluxo de trabalho exclusivamente digital à medida que as tecnologias se tornem acessíveis e a curva de aprendizado superada.

Methylene Blue for the Treatment of Health Conditions: a Scoping Review

HIGHLIGHTS This scoping review summarizes the findings of clinical trials using methylene blue (MB) for the treatment of various health conditions. This research method allowed mapping main findings, clarifying research topics, and identifying gaps in the literature.

Abstract studies evaluating effective drugs for health conditions are of crucial importance for public health. Methylene blue (MB) is an accessible synthetic drug that presents low toxicity and has been used in several health areas due to its effectiveness. Objective: this scoping review aims to provide a comprehensive overview of relevant research regarding the use of MB for the treatment of health conditions. Methods: a five-stage framework Arksey and O'maley scoping review was conducted. The literature was searched in Cochrane Library database using Mesh term "methylene blue". Data were collected by two independent reviewers and submitted to descriptive synthesis. Results: The search resulted in 429 records, from which 16 were included after exclusion criteria were applied. The therapeutic use of MB was identified for acute conditions (malaria and septic shock), chronic conditions (discogenic back pain, bipolar disorder, refractory neuropathic pain, and post-traumatic stress disorder), and postoperative care (vasoplegic syndrome, and pain after haemorrhoidectomy, lumbar discectomy, and traumatic thoracolumbar fixation). Conclusion: there is much evidence emerging from clinical trials about the therapeutic use of MB for acute, chronic, and postoperative conditions; however, many gaps were identified, which open further avenues for future research.

Three-dimensional printed models versus conventional stone models: an accuracy analysis

Aim: To compare the accuracy (trueness and precision) of cost-accessible three-dimensional (3D) printed models. Methods: A maxillary typodont (MM) was scanned and printed 10 times in polylactic acid, resulting in 10 digital models (DMs). Polyvinylsiloxane impressions were made to obtain 10 conventional stone models (SMs). All models were scanned and imported to CloudCompare software. The total area and three locations of interest were evaluated (zenith to incisal [Z-I], canine to canine [C-C], and first molar to canine [1M-C] distances). Total area evaluations were performed by aligning the MM and experimental models using the best-fit algorithm and were compared using the Haussdorf distance. The distances between points of interest were measured using the point-picking tool at the same 3D coordinates. The mean volumetric deviations were considered for trueness analysis. Precision was set as the standard deviation. Statistical differences were evaluated using the Student's t-test. Results:Total area volumetric comparisons showed that DMs showed superior trueness and precision (-0.02 ± 0.03) compared to the SMs (0.37 ± 0.29) (P < 0.001). No differences between the models were observed for Z-I (P = .155); however, SMs showed fewer deviations for C-C (P = .035) and 1M-C (P = .001) than DMs. Conclusions: The DMs presented superior trueness and precision for total area compared to the SMs; however, the SMs were more accurate when points of interest were evaluated

In Vitro Fracture Resistance and Bond Strength of Self-Adhesively Luted Cast Metal and Fiber-Reinforced Composite Posts and Cores: Influence of Ferrule and Storage Time.

PURPOSE: To evaluate the fracture resistance and bond strength of cast posts and cores (CPCs) and customized glass fiber posts (CFPs) with self-adhesive luting. MATERIALS AND METHODS: A total of 56 recently extracted premolars were divided into four groups for the fracture resistance test (CPC and CFP, with and without ferrule) and four groups for the bond strength test (CPC and CFP, immediate and 6 months of storage). RESULTS: Differences for fracture resistance were found between CPCs and CFPs with ferrule. For bond strength, the interaction between post and root region was significant. CONCLUSION: Self-adhesive luting increased fracture resistance of CPCs with ferrule. The ferrule decreased root fractures. Bond strength was similar for both retainers but not for the apical third. Water storage affected bond strength positively.

Reorientação do estágio de Odontologia no SUS subsidiada pela criticidade de preceptores / Reorientation of the Dentistry internship in the SUS based on the criticality of preceptors

O preceptor de estágio exerce influência chave na formação profissional e pessoal do estagiário. Uma vez que o preceptor está grande período de tempo em contato com o acadêmico, este pode auxiliar na identificação das principais limitações do estágio curricular de Odontologia no Sistema Único de Saúde (SUS). O objetivo deste estudo foi expor percepções críticas de cirurgiões-dentistas preceptores de estágio no SUS, com enfoque no processo de reestruturação curricular de um curso de graduação em Odontologia. Realizou-se pesquisa exploratória e descritiva com abordagem qualitativa junto a cirurgiões-dentistas preceptores de estágio (n=8) do referido curso. A apreensão das informações se deu por meio da técnica em entrevista de Grupo Focal e os dados foram transcritos e categorizados por meio da Análise de Conteúdo Temática. Da análise emergiram quatro dimensões: Estrutura Organizacional, Perfil do Estagiário, Serviço de Saúde e Atuação do Orientador. Os preceptores investigados assumem a importância do estágio para a integração entre academia e serviço. Todavia, sua percepção encontra-se arraigada no modelo biologicista, o que sugere um enorme desafio às políticas públicas atuais e em especial à mudança curricular do curso de Odontologia, centrada na integralidade da atenção humana e na abordagem humanista, crítica e reflexiva em saúde (AU).

Dental preceptors have a key influence on trainees' professional and personal development. Because the preceptor spends a great deal of time in contact with the student, they can help in identifying the main limitations of the curricular internship in the Unified Health System (SUS). The aim of this study was to disclose critical perceptions of dental preceptors in the SUS, focusing on the curricular change of an undergraduate dentistry program. An exploratory, descriptive and qualitative study was carried out with all preceptors (n = 8) of this dentistry program. The information was gathered through a focus group interview, and the data were transcribed and categorized using thematic analysis. From the analysis, four dimensions emerged: Organizational Structure, Student Profile, Health Service and Performance of the Mentor Teacher. The preceptors investigated assume the importance of the internship for the integration between academia and service. However, their perceptions are rooted in the biologicist model, which suggests a huge challenge to current public policies and, in particular, to the curricular change in dentistry programs, centered on the integrality of human attention and a humanist, critical and reflexive approach in health (AU).

Conhecimento de gestantes sobre o teste da linguinha em neonatos / Knowledge of pregnant women about the neonatal tongue screening test

Introdução: O diagnóstico e o tratamento precoce de anquiloglossia em bebês favorece o desenvolvimento adequado das funções orofaciais. O conhecimento popular sobre o teste da linguinha (TL) pode disseminar sua realização. Objetivo: Verificar o conhecimento sobre o TL e sua relação com o perfil sociodemográfico de gestantes. Material e método: Foram investigadas 427 gestantes que realizaram o pré-natal em um hospital escola do sul do Brasil, no período de maio a dezembro de 2017. As informações foram obtidas por meio de questionário individual contendo perguntas sobre as características sociais, demográficas e gestacionais da gestante, e o conhecimento sobre o teste da linguinha. Os dados foram analisados por estatística descritiva e as associações realizadas com o teste qui-quadrado. Resultado: Os resultados demonstraram que 33 (7,7%) gestantes conhecem e 45 (10,5%) possuem informações equivocadas sobre o TL. Gestantes com grau de escolaridade (p=0,028) e renda familiar (p=0,002) maiores são mais propensas a conhecer o teste. Profissionais da enfermagem são os principais provedores da informação (64,1%). Conclusão: O conhecimento de gestantes sobre o TL é superficial, especialmente entre as de menor escolaridade e renda, o que acentua a necessidade de estratégias públicas com foco em melhorar a qualidade da assistência oferecida ao binômio mãe-filho.

Introduction: The early diagnosis and treatment of ankyloglossia in infants favors the adequate development of orofacial functions. The knowledge about the tongue screening test (TL) may disseminate its realization. Objective: The aim of this study was to verify the knowledge about the neonatal tongue screening test (TL) and its relation with the sociodemographic profile of pregnant women. Materials and method: A total of 427 pregnant women receiving prenatal care at a school hospital in southern Brazil from May to December 2017 were investigated. The information was collected through an individual questionnaire containing information about the pregnant woman's sociodemographic profile and gestational characteristics and knowledge about the TL. Data were analyzed by descriptive statistics and the associations performed with the chi-square test. Result: The results showed that 33 (7.7%) of the pregnant women knew and 45 (10.5%) had misinformation about the TL. Pregnant women with higher education (p=0.028) and higher family income (p=0.002) were more likely to know the test. Nursing professionals were the main providers of the information (64.1%). Conclusion: It is possible to conclude that the knowledge of pregnant women about the TL is superficial, especially among those with lower schooling and income, and it emphasizes the need for public strategies focused on improving health care offered to the mother-baby binomial.

Prevalência de calcificação de placa ateromatosa em carótida por meio da radiografia panorâmica / Prevalence of carotid artery calcifications on panoramic radiographs

Objetivo: Avaliar a prevalência de calcificação de placa ateromatosa (PAC) na região de bifurcação da carótida em radiografias panorâmicas realizadas em uma população brasileira. Métodos: Nesse estudo realizou-se a avaliação da prevalência de imagem sugestiva de PAC em 450 radiografias panorâmicas de pacientes atendidos no período entre 2015 e 2017. As radiografias foram analisadas para a presença de PAC. Resultados: Dezesseis pacientes (3,55%) apresentaram imagens sugestivas de PAC. A maior prevalência foi no gênero feminino (4,5%), a faixa etária mais prevalente foi entre 61 e 80 anos (12,2%) e a localização mais frequente foi unilateral (81,2%). Conclusão: A presença de PAC na região de bifurcação da carótida foi encontrada em 3,55% dos pacientes, sendo mais prevalentes em mulheres leucodermas, acima de 60 anos e unilateral.

Aim: To evaluate the prevalence of calcified atheromatous plaque (CAP) in the region of carotid bifurcation in panoramic radiographs in a Brazilian population. Methods: This study evaluated the prevalence of images suggestive of CAP in 450 panoramic radiographs of patients in the period between 2015 and 2017. Results: Sixteen patients (3.55%) presented images that were suggestive of CAP. The highest prevalence was in the female sex (4.5%), the most prevalent age group was between 61 and 80 years old (12.2%), and the most frequent location was unilateral (81.2%). Conclusion: The presence of CAP in the region of carotid bifurcation was found in 3.55% of the patients, and proved to be more prevalent in white women over 60 years of age and unilateral.

A atuação do residente em Odontologia Hospitalar neonatal na abordagem multidisciplinar do SUS: relato de experiência / The multidisciplinary work of the resident in neonatal hospital dentistry in the Brazilian Healthcare System: an experience report

A reorganização dos serviços de saúde vinculada ao programa Humaniza SUS possibilita o cuidado multiprofissional do indivíduo. Neste sentido, a inclusão do cirurgião-dentista nas equipes visa somar esforços para o alcance da integralidade da atenção, a qual abrange as diversas alterações que podem acometer o sistema estomatognático de sujeitos em cuidados hospitalares. A residência em odontologia hospitalar neonatal, como parte integradora da abordagem multiprofissional, é extremamente importante para garantir a abordagem adequada de gestantes, puérperas e recémnascidos (RN) em sua plenitude. As frentes de atuação do residente em odontologia neonatal envolvem, principalmente, o pré-natal odontológico, o puerpério imediato e mediato, a abordagem ambulatorial e as unidades de terapia intensiva neonatal e pediátrica. Este artigo objetiva relatar a experiência de atuação de residentes em odontologia hospitalar neonatal em um hospital escola pertencente ao Sistema Único de Saúde (SUS) do Paraná (AU).

The restructuring of the national healthcare system in line with the HumanizaSUS program has enabled a multidisciplinary care of the individual. Consistent with this, the incorporation of dental professionals into healthcare teams aims to aggregate efforts to provide a comprehensive care, which includes the conditions affecting the stomatognathic system of hospitalized patients. The residency in neonatal hospital dentistry, as an integral part of the multidisciplinary approach, is extremely important to ensure a comprehensive care of pregnant and puerperal women and newborns. The activities of neonatal dental residents are focused on dental prenatal care, early and late puerperium, outpatient clinical care, and neonatal and pediatric intensive care units. This study aims to report the experience of residents in neonatal hospital dentistry in a school hospital of the Brazilian Healthcare System (SUS) in the state of Paraná (AU).

A influência da posição acadêmica sobre condutas de saúde em universitários / The influence of the university level on health conducts in university students

Poucos estudos têm examinado as condutas de saúde da população universitária em sua totalidade. O objetivo deste estudo foi avaliar a influência da posição acadêmica, considerando estudantes de graduação e pós-graduação, sobre a aquisição de condutas de saúde. A amostra foi composta por 223 graduandos e 67 pós-graduandos, ambos concluintes dos cursos de Odontologia, Farmácia, Medicina, Educação Física, Enfermagem e Ciências Biológicas de uma universidade pública da região Sul do Brasil. Utilizou-se um instrumento para a coleta de dados demográficos e o questionário autoaplicável National College Health Risk Behavior Survey (NCHRBS), para a avaliação das dimensões segurança no trânsito e violência, consumo de tabaco e álcool, comportamento sexual e alimentação, atividade física e peso. Observou-se que a posição acadêmica não exerceu papel significativo na aquisição de condutas inadequadas, estando estas mais relacionadas com o perfil demográfico dos indivíduos. Estudantes mais jovens, do gênero masculino e solteiros apresentaram maior prevalência de hábitos considerados prejudiciais à saúde, principalmente relacionados ao consumo de bebida alcoólica e ao envolvimento em agressão física. Estudantes mulheres apresentaram aquisição significativa de métodos inapropriados para o controle do peso corporal. Os resultados encontrados refletem a importância da efetivação de políticas que visem à intervenção e prevenção de comportamentos prejudiciais à saúde entre universitários, considerando-se o universo de graduandos e pós-graduandos (AU).

Few studies have examined healthy behaviors of the university population in its entirety. The aim of this study was to evaluate the influence of the academic position, considering undergraduate and graduate students, on the acquisition of healthy behaviors. The sample consisted of 223 undergraduate and 67 postgraduate students of the Life and Health Sciences area (Dentistry, Pharmacy, Medicine, Physical Education, Nursing and Biological Sciences courses) of a public university in southern Brazil. An instrument for the collection of demographic data and the National College Health Risk Behavior Survey (NCHRBS) was used to assess four dimensions: security in traffic and violence, tobacco and alcohol consumption, sexual behavior and nutrition, and physical activity and weight. It was observed that the academic position did not play a significant role in the acquisition of risky habits, being this acquisition more related to the demographic profile of the individuals. Younger, male and unmarried students had a higher prevalence of habits considered harmful to health, mainly related to alcohol consumption and involvement in physical aggression. Female students presented statistical significant difference for using inappropriate methods for body weight control. The results reflect the importance of effective policies, which aim at intervention and prevention of risk behaviors among the college population, considering the undergraduate and graduate students (AU).