Closed versus open reduction of facial fractures in children and adolescents : a systematic review and meta-analysis

Treatment of facial fractures in children and adolescents has always been a challenge for oral surgeon. The choice of treatment type must take into account several factors. This systematic review aimed to evaluate closed versus open reduction of facial f

Reparo de resinas compostas envelhecidas e mediadas por diferentes materiais restauradores

The aim of this study was to evaluate the shear bond strength of resin composite repairs with and without aging of the surface to be repaired, using different adhesive systems and resin composites. Ninety specimens were prepared: 10 for the Control Group (GC - without repair); 40 for Group I (GI - repairs after 7 days) and 40 for Group II (GII - repairs after 180 days). Groups I and II were divided into 4 subgroups of 10 specimens each, according to the adhesive system and composite resin used: A) Adper Scotch Bond Multipurpose + Filtek Z350 XT; B) Adper Single Bond Plus + Filtek Z350 XT; C) Adper Scotch Bond Multipurpose + Esthet-X; D) Adper Single Bond Plus + Esthet-X. The specimens were tested for shear strength in a universal testing machine. The results were analyzed by two-factor one-way ANOVA and Fisher’s post hoc tests (alpha=0.05). The control group had better performance than the other groups. There was no significant difference when comparing different adhesive systems and composite resins. Repairs performed at 7 days were better than those performed at 180 days. The composite repairs decreased the mechanical strength of the restoration. Aging of the resin substrate may decrease repair bond strength over time, regardless of the type of adhesive systems and resin composites used.Avaliar a resistência de união ao cisalhamento de reparos de resina composta com e sem envelhecimento da superfície a ser reparada, utilizando diferentes sistemas adesivos. Noventa corpos de prova foram confeccionados sendo: 10 para o Grupo Controle (GC - sem reparo); 40 para o Grupo I (GI - reparos após 7 dias) e 40 para o Grupo II (GII – reparos após 180 dias). Para os reparos, os grupos GI e GII foram subdivididos em 4 subgrupos com 10 corpos de prova, variando o sistema adesivo e a resina composta: A) Adper Scotch Bond Multipurpose+ Filtek Z350XT; B)Adper Single Bond Plus+ Filtek Z350XT; C)Adper Scotch Bond Multipurpose+ Esthet-X; D) Adper Single Bond Plus+ Esthet-X. Os corpos de prova foram submetidos a uma força de cisalhamento em uma máquina de ensaio universal (EMIC). Os resultados foram analisados pelo teste estatístico Anova dois fatores, seguido pelo teste de Fisher´s. Observou-se melhor comportamento do grupo controle sobre os demais grupos, além disso, os reparos realizados aos 7 dias foram superiores aos dos realizados em 180 dias. Não houve diferença significativaquando se comparou diferentes sistemas adesivos e resinas compostas. Os reparos de resina composta diminuem a resistência mecânica da restauração.O envelheci mento do substrato de resina pode diminuir a resistência ao reparo ao longo do tempo, independentemente do tipo de sistemas adesivos e resinas compostas utilizados

The thermoplastic techniques or single-cone technique on the quality of root canal filling with tricalcium silicate-based sealer : an integrative review

The filling of the root canal system (RCS) is an important step in endodontic treatment and aims to obtain a three-dimensional sealing of the root canal spaces to prevent bacterial contamination. For this, the selection of an appropriate sealer must be p

Polymorphisms of the serotonin receptors genes in patients with bruxism: a systematic review

This study aimed to investigate if SNP rs6313, SNP rs2770304, SNP rs4941573, and SNP rs1923884 of the 5-HT2A receptor gene and SNP rs6295 of the 5-HT1A receptor gene are associated with bruxism etiology. Methodology: This systematic review was registered in PROSPERO (CRD42018094561). A search was conducted for articles published in or before May 2021. To qualify for eligibility in this review, the studies had to be case-controls, cohort or cross-sectional. The inclusion criteria were the articles with a group of patients with bruxism and a control group in which the presence of these SNPs was evaluated. The exclusion criteria were the investigations of other polymorphisms, the studies that did not consider a control group for comparison, case reports, and reviews. The NOS and JBI were used to evaluate the methodological quality of studies. Results: We conducted this study with databases, such as Web of Science, Scopus, Embase, PubMed/MEDLINE, and ProQuest. We considered four studies eligible. A total of 672 participants were included,187 with sleep bruxism, 105 with awake bruxism, 89 with sleep and awake bruxism, and 291 controls. One study found a strong association between the SNPs rs6313, rs2770304 and rs4941573 of the 5-HT2A receptor gene and sleep bruxism. In one study, we considered the C allele of the SNP rs2770304 a risk factor for sleep bruxism. We found no significant results of other SNPs in sleep bruxers compared to controls. We found no positive association concerning the SNPs and groups of awake bruxism and sleep and awake bruxism. Conclusion: The different results regarding the SNPs in sleep bruxers could be explained by the genetic distinction between Chilean, Mexican, Japanese, and Polish population. More clinical trials and prospective studies must be conducted with larger sample size and in different ethnicities to confirm the results of this review

Biomechanical analysis of narrow dental implants for maxillary anterior rehabilitation

Abstract Introduction Narrow diameter implants biomechanics knowledge indicates safe dimensions for clinical use. Objective Purpose of the present study was biomechanically to compare regular and narrow diameter implants to support single implant-supported prosthesis in the anterior region of the maxilla by 3D finite element analysis (3D-FEA). Material and method Four 3D-FEA models were developed form CT scan recompositing and literature data: a bone block in the right upper lateral incisive region with implant and crown. M1: 3.75 x 13 mm, M2: 3.75 x 8.5 mm, M3: 2.9 x 13 mm and M4: 2.9 x 8.5 mm. It was applied load was of 178 N at 0, 30 and 60 degrees in relation to implant long axis. Von Mises stress, maximum principal stress and microdeformation maps were evaluated. Result M3 and M4 did show higher tension and higher microdeformation values than M1 and M2, especially when inclined forces were applied. However, M3 presented enhanced biomechanical behavior than M4. Conclusion It can be concluded that reduce the diameter of the implants can disadvantage to the biomechanics during the application of forces, but the distribution and intensity of the stresses, as well as the micro deformation values can be improved if the length of the implant is increased

EDUCAÇÃO FÍSICA NOS ANOS INICIAIS DO ENSINO FUNDAMENTAL: A QUESTÃO DA UNIDOCÊNCIA

Este artigo é um recorte da pesquisa intitulada “Políticas de formação de professores: quais suas implicações na prática Pedagógica da educação física em escolas Públicas estaduais?” Tem como objetivo refletir sobre a educação física nos anos iniciais enfocando a unidocência como prática pedagógica e gratificação salarial. É uma investigação de natureza qualitativa, realizada através de análise documental e entrevista semi-estruturada com seis professores. Em que pese a argumentação pedagógica e legislativa que justifica a unidocência, a análise das informações aponta que, no tocante à .Educação Física, sua prática precisa ser revista

Reparo de resinas compostas envelhecidas e mediadas por diferentes materiais restauradores

The aim of this study was to evaluate the shear bond strength of resin composite repairs with and without aging of the surface to be repaired, using different adhesive systems and resin composites. Ninety specimens were prepared: 10 for the Control Group (GC - without repair); 40 for Group I (GI - repairs after 7 days) and 40 for Group II (GII - repairs after 180 days). Groups I and II were divided into 4 subgroups of 10 specimens each, according to the adhesive system and composite resin used: A) Adper Scotch Bond Multipurpose + Filtek Z350 XT; B) Adper Single Bond Plus + Filtek Z350 XT; C) Adper Scotch Bond Multipurpose + Esthet-X; D) Adper Single Bond Plus + Esthet-X. The specimens were tested for shear strength in a universal testing machine. The results were analyzed by two-factor one-way ANOVA and Fisher’s post hoc tests (alpha=0.05). The control group had better performance than the other groups. There was no significant difference when comparing different adhesive systems and composite resins. Repairs performed at 7 days were better than those performed at 180 days. The composite repairs decreased the mechanical strength of the restoration. Aging of the resin substrate may decrease repair bond strength over time, regardless of the type of adhesive systems and resin composites used.Avaliar a resistência de união ao cisalhamento de reparos de resina composta com e sem envelhecimento da superfície a ser reparada, utilizando diferentes sistemas adesivos. Noventa corpos de prova foram confeccionados sendo: 10 para o Grupo Controle (GC - sem reparo); 40 para o Grupo I (GI - reparos após 7 dias) e 40 para o Grupo II (GII – reparos após 180 dias). Para os reparos, os grupos GI e GII foram subdivididos em 4 subgrupos com 10 corpos de prova, variando o sistema adesivo e a resina composta: A) Adper Scotch Bond Multipurpose+ Filtek Z350XT; B)Adper Single Bond Plus+ Filtek Z350XT; C)Adper Scotch Bond Multipurpose+ Esthet-X; D) Adper Single Bond Plus+ Esthet-X. Os corpos de prova foram submetidos a uma força de cisalhamento em uma máquina de ensaio universal (EMIC). Os resultados foram analisados pelo teste estatístico Anova dois fatores, seguido pelo teste de Fisher´s. Observou-se melhor comportamento do grupo controle sobre os demais grupos, além disso, os reparos realizados aos 7 dias foram superiores aos dos realizados em 180 dias. Não houve diferença significativaquando se comparou diferentes sistemas adesivos e resinas compostas. Os reparos de resina composta diminuem a resistência mecânica da restauração.O envelheci mento do substrato de resina pode diminuir a resistência ao reparo ao longo do tempo, independentemente do tipo de sistemas adesivos e resinas compostas utilizados

Estética em sistema metal free associado a núcleos metalocerâmicos personalisados

The evolution of ceramic systems currently allows the manufacture of prosthesis similar to the natural teeth, meeting the expectations of patients. However, when using vitreous ceramic the color of substrate is significant for the esthetic result, requiring planning aesthetic cores when involved reconstruction of endodontically treated teeth without coronal structure. Thus, the aim of this study to describe a case report of aesthetic rehabilitation in upper anterior teeths using vitreous ceramic system for the reconstruction of elements: 11, 12, 21 and 22 after endodontically treated. It was emphasized the removal of crowns and manufacture of custom cast post and core with ceramic in coronal portion, prioritizing the aesthetic result. Through the clinical results observed can be seen that the use of custom cast post and core with ceramic in association lithium disilicate glass ceramics provided a satisfactory aesthetic result.A evolução dos sistemas cerâmicos atualmente permite a confecção de próteses próximas aos dentes naturais, atendendo às expectativas dos pacientes cada vez mais exigentes. Contudo, quando se trabalha com sistemas cerâmicos vítreos a coloração do substrato é extremamente significante para o resultado estético final, sendo necessário o planejamento de núcleos estéticos quando se está envolvido a reconstrução de dentes tratados endodonticamente sem o remanescente coronário. Sendo assim, o objetivo deste trabalho é descrever o passo-a-passo da reabilitação estética dos incisivos superiores com sistema cerâmico vítreo para a reconstrução dos dentes 11, 12, 21 e 22 após o tratamento endodôntico. Enfatizou-se o processo de remoção das coroas precedentes e confecção dos núcleos metálicos personalizados com cerâmica em sua porção coronária, priorizando o resultado estético. Através do resultado clínico pôde ser observado que o uso de núcleo metálico personalizado com cerâmica em associação com sistema cerâmico vítreo à base de dissilicato de lítio proporcionou um resultado estético satisfatório

Associated oral manifestations with HIV southeastern Brazilian patients on antiretroviral therapy

Objectives: This study aimed to assess the prevalence of oral lesions in patients living with HIV infection and their association with CD4 count, viral load, and antiretroviral therapy in patients with HIV. Methods: A cross-sectional study was conducted on a sample of 161 patients attending the… All the patients were examined for their oral lesions, current CD4 counts, type, and duration of the therapy. Data analyses were carried out using Chi-Square, Student T/Mann-Whitney, and logistic regression tests. Results: Oral lesions were observed in 58.39% of patients with HIV. Periodontal disease with 78 (48.45%) or without mobility 79 (49.07%) was observed more frequently, followed by hyperpigmentation of oral mucosa 23 (14.29%), Linear Gingival Erythema (LGE) 15 (9.32%), candidiasis pseudomembranous 14 (8.70%). Oral Hairy Leukoplakia (OHL) was observed only in 3 (1.86%). A relationship between periodontal disease with dental mobility and smoking was found (p = 0.04), as well duration of treatment (p = 1.53e-3) and age (p = 0.02). Hyperpigmentation was related to race (p = 0.01) and smoking (p = 1.30e-6). CD4 count, CD4:CD8 ratio, viral load, or type of treatment were not associated with oral lesions. Logistic regression showed that the duration of treatment has a protective effect on the periodontal disease with dental mobility (OR = 0.28 [−2.27 to −0.25]; p-value = 0.03), independent of age or smoking. To hyperpigmentation, the best model included smoking (OR = 8.47 [1.18–3.10], p =  1.31e-5), without race or type and duration of treatment. Conclusion: Among HIV patients undergoing antiretroviral treatment, oral lesions can be observed, predominantly periodontal disease. Pseudomembranous candidiasis and oral hairy leukoplakia were also observed. No relationship was found between associated oral manifestations in HIV patients and the start of the treatment, TCD4+ and TCD8+ cell count, TCD4:TCD8 ratio, or viral load. The data indicate that there is a protective effect of duration of treatment with relation to periodontal disease with mobility and that hyperpigmentation seems to be more related to smoking than type and duration of treatment. Level of evidence: Level 3 (OCEBM Levels of Evidence Working Group*. ''The Oxford 2011 Levels of Evidence'')

Manutenção em próteses implantossuportadas: peri-implantite

The identification and treatment of peri-implant infections are an essential stage in the maintenance of dental implants, reflecting the longevity of rehabilitation. Therefore, the aim of the study was to conduct a literature review addressing peri-implantitis in dental implants in order to guide planning for the longevity of oral rehabilitation. It was conducted a detailed search strategy by the PubMed / Medline Dentistry and Oral Science, it was used as descriptors: “peri-implantitis” and “Dental Implant”, until July 2013. From 566 articles, after a review, according to the inclusion criteria, 34 articles were selected. The results were grouped together in topics (concept, etiology, diagnosis, surgical and nonsurgical, and aspects of oral rehabilitation) for further discussion and conclusions. Conclusions: The accumulation of plaque has been associated with a higher propensity to peri-implantitis. There is a higher incidence of the peri-implantitis disease among patients with previous history of periodontal disease. The local administration of antibiotics and association with mouthwashes / topical use are indicated as suitable for the treatment of moderate peri-implantitis.A identificação e o tratamento das infecções peri-implantares é uma etapa essencial na manutenção dos implantes osseointegráveis, refletindo na longevidade da reabilitação. Assim, o objetivo deste estudo foi realizar uma revisão de literatura abordando o tema peri-implantite em implantes osseointegráveis com o intuito de nortear um planejamento de longevidade para as reabilitações orais. Realizou-se uma estratégia de busca detalhada para as bases de dados PubMed/Medline e Dentistry Oral Science, com os descritores: “peri-implantitis” e “dental implant”, até julho de 2013. De um total de 566 artigos, após uma análise, segundo o critério de inclusão, foram selecionados 34 artigos. Os resultados foram agrupados em tópicos (conceito, etiologia, diagnóstico, tratamento cirúrgico e não cirúrgico e, aspectos relativos à reabilitação oral) para posterior discussão e conclusões. Concluiu-se que o acúmulo de placa bacteriana tem sido associado com maior propensão a peri-implantites. Existe maior incidência da doença entre pacientes que já apresentaram periodontites. A administração local de antibióticos e associação com bochechos/uso tópico tem sido indicada como satisfatória para o tratamento de peri-implantites moderadas