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Dimensions of Occlusoproximal Cavitated Carious Lesions as a Cut-Off Point for Restorative Decision in Primary Teeth
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Scherer, Helena

; Cavalheiro, Cleber Paradzinski

; Imparato, José Carlos Pettorossi

; Rocha, Rachel de Oliveira

; Ortiz, Fernanda Ruffo

; Lenzi, Tathiane Larissa

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2023, Volume 23 elocation e220017

Resumo: En | Texto: En | PDF: En

ABSTRACT Objective: To investigate whether the dimensions of cavitated dentin carious lesions on the occlusoproximal surfaces of primary teeth could predict the location of cement-enamel junction (CEJ). Material and Methods: Two hundred extracted primary molars were selected and digital images were obtained. The teeth were set in arch models for clinical measurement. The cervical-occlusal (CO) and buccal-lingual/palatal (BL/P) cavities’ dimensions were obtained by digital (Image J) and clinical (periodontal millimeter probe) assessments. The cervical margin location was also determined. The thresholds (cut-off points) were determined by sensitivity, specificity and the areas under the receiver operating characteristics curves (Az) for the two methods. Pearson's correlation coefficient was used to investigate the correlation between clinical and digital measurements. Logistic regression analysis was performed to evaluate the association between the dimensions and cervical margin location. Results: There was a strong correlation between methods for all measurements (CO: r=0.90, VL/P: r=0.95). Cavities with BL/P distance higher than 4.5 mm and CO dimension higher than 3.5 mm had a lower chance of presenting the cervical limit above the CEJ, irrespective of the measurement method. Conclusion: CO and VL/P dimensions could be used to predict the CEJ location and, ultimately, as a clinical parameter for restorative decision-making.

https://doi.org/10.1590/pboci.2023.007

One-year clinical evaluation of class II bulk-fill restorations in primary molars: a randomized clinical trial
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Gindri, Larissa D’Olanda

; Cassol, Igor Perlin

; Fröhlich, Tatiana Tambara

; Rocha, Rachel de Oliveira

Brazilian Dental Journal

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Dez 2022, Volume 33 Nº 6 Páginas 110 - 120

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Este ensaio clínico randomizado, duplo-cego objetivou comparar a performance clínica e tempo clínico para restaurar cavidades ocluso-proximais em molares decíduos, restauradas com resina bulk-fill e resina convencional. Um total de 140 restaurações classe II em molares decíduos de 65 participantes (média de idade 6.7 + 1.5) foram realizadas dividas em dois grupos randomizados: resina bulk-fill e resina convencional. As restaurações foram avaliadas conforme o critério da FDI no baseline, após 6 meses e 1 ano, por um único examinador calibrado e o tempo clínico restaurador foi mensurado por um cronômetro digital. O sucesso e a sobrevida das restaurações foram avaliados através dos gráficos de Kaplan-Meier. O teste de log-rank comparou as curvas. A diferença no tempo clínico restaurador foi comparada usando o teste U de Mann-Whitney. O nível de significância foi de 5%. Após 1 ano, 115 restaurações foram avaliadas. A probabilidade de sucesso foi de 88,7% para Filtek Z350 XT e 85.9% para FiltekTM Bulk-fill e quanto a probabilidade de sobrevivência, Filtek Z350 XT apresentou 90% e FiltekTM Bulk-fill apresentou 93,7%. Não foi encontrada diferença significativa entre as curvas de sucesso e sobrevida (p=0,62), (p=0,51). A principal causa de falha foi a adaptação marginal. A resina bulk-fill exigiu 30% menos tempo do que a resina convencional (p<0,001). A resina bulk-fill apresentou desempenho clínico semelhante ao da resina convencional e necessitou menor tempo clínico restaurador. Dessa forma, é uma opção para restaurar lesões classe II em molares decíduos.

Abstract This double-blind, randomized clinical trial aimed to compare the clinical performance and clinical time to restore occluso-proximal cavities in primary molars withbulk-fillresin and conventional resin. A total of 140 class II restorations in primary molars of 65 participants (mean age of 6.7 + 1.5) were placed in two random groups:bulk-filland conventional resin. The restorations were evaluated using FDI criteria at the baseline, 6-month, and one year by a single calibrated examiner, and the clinical restorative time was measured with a digital timer. The success and survival of the restorations were evaluated with Kaplan-Meier graphs. The log-rank test compared the curves. Differences in restorative clinical time were compared using the Mann-Whitney U test. The level of significance was 5%. After one year, 115 restorations were evaluated. The success probability was 88.7% for Filtek Z350 XT and 85.9% for FiltekTM Bulk-fill, and for the survival probability, Filtek Z350 XT presented 90%, and FiltekTM Bulk-fill presented 93.7%. No significant difference was found between the success and survival curves (p=0.62), (p=0.51). The main reason for failure was marginal adaptation.Bulk-fillresinrequired 30% less time than the conventional resin (p<0.001).Bulk-fillresin presented similar clinical performance to the conventional resin and required less restorative clinical time. It is an option to restore class II lesions of primary molars.

https://doi.org/10.1590/0103-6440202205069

Early Childhood Caries and sugar: relationships and suggestions for prevention
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LUZ, Stéphanie

; BOTTON, Graziela

; ROCHA, Rachel de Oliveira

; OLIVEIRA, Marta Dutra Machado

; ORTIZ, Fernanda Ruffo

RGO - Revista Gaúcha de Odontologia

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2021, Volume 69 elocation e20210055

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

RESUMO Objetivo: Mostrar a relação entre a ingestão do açúcar na dieta infantil e a presença da Cárie da Primeira Infância em um grupo de crianças pré-escolares. Métodos: Foi realizada uma análise retrospectiva de prontuários de pacientes de 0 a 6 anos atendidos na Clínica de Bebês entre 2010 a 2016, da Universidade Federal de Santa Maria. Os dados analisados foram: identificação do paciente, sexo, idade, introdução do açúcar (idade e frequência), aleitamento materno exclusivo, uso de mamadeira contendo açúcar, escovação (com ou sem flúor) e diagnóstico de cárie dentária feito através do International Caries Detection and Assessment System. A análise descritiva mostrou as características da amostra e análises comparativas foram realizadas pelos testes de Fisher e T-Student, para verificar a relação entre variáveis individuais e a ingestão de açucares. Resultados: A média de idade das crianças foi de 29 meses. Dos 86 prontuários analisados, 80,0% das crianças ingeriam alimentos açucarados, sendo parte da rotina alimentar. Apenas 36 prontuários continham informações sobre a Cárie da Primeira Infância, nestes foi encontrada uma prevalência de 86,2% da amostra. Não houve diferença estatística entre dieta açucarada e demais variáveis (p > 0,05). Conclusão: Esses resultados sugerem uma intensa relação entre açúcar e Cárie da Primeira Infância. A alta frequência de ingestão de açúcar é um fator de risco para o surgimento da Cárie da Primeira Infância, podendo ser retardada a sua inserção na alimentação infantil. A orientação alimentar e de higienização é fundamental no processo do tratamento assim como a conscientização familiar.

ABSTRACT Objective: To show the relation between sugar intake in the infant diet and the presence of early childhood caries in a group of preschoolers. Methods: A retrospective analysis of medical records of patients aged 0 to 6 years attended at the Clinic of Babies from 2010 to 2016, at Universidade Federal de Santa Maria. The data analyzed were: patient identification, gender, age, sugar introduction (age and frequency), exclusive breastfeeding, use of a bottle containing sugar, brushing (with or without fluoride) and diagnosis of dental caries through the International Caries Detection and Assessment System. Descriptive analysis showed the characteristics of the sample and comparison analyzes were performed using Fisher and T-Student tests, to verify the relation between individual variables and sugary intake. Results: The average age of the children was 29 months. Of the 86 medical records analyzed, 80.0% of the children ingested sugary foods, and its were part of the eating routine. Only 36 medical records contained information about early childhood caries, in which 86.2% of prevalence was found. There was no statistical difference between sugary diet and other variables (p > 0.05). Conclusion: These results suggest an intense relationship between sugar and early childhood caries. The high frequency of sugar intake is a risk factor for the onset of caries in early childhood, and its insertion in infant feeding may be delayed. Food and hygiene orientation is fundamental in the treatment process as well as family awareness.

https://doi.org/10.1590/1981-863720210005520200027

Choosing the Criteria for Clinical Evaluation of Composite Restorations: An Analysis of Impact on Reliabilty and Treatment Decision
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Cavalheiro, Cleber Paradzinski

; Souza, Pablo Soares de

; Rocha, Rachel de Oliveira

; Mendes, Fausto Medeiros

; Braga, Mariana Minatel

; Raggio, Daniela Prócida

; Lenzi, Tathiane Larissa

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2020, Volume 20 elocation e5088

Resumo: En | Texto: En | PDF: En

Abstract Objective: To assess the reproducibility of two clinical criteria for the evaluation of restorations in primary teeth and the impact on treatment decision. Material and Methods: A cross-sectional study was performed selecting 71 resin-based composite restorations placed in primary molars of children who had sought dental treatment at a dental school. Two trained examiners evaluated independently the restorations using modified FDI and USPHS criteria. All restorations were assessed separately with each system in random order to avoid memory bias. Kappa statistics were used to determine inter-examiner reliability considering each parameter of both criteria and score final about treatment decision. McNemar test was used to compare the treatment decision with two criteria. The significance level was set at 5%. Results: Kappa values ranged from 0.28 to 0.93 with USPHS and 0.28 to 0.88 with FDI, considering each parameter separately. Inter-examiner agreement for treatment decision was excellent for both criteria (Kappa: 0.85-0.90). For clinical decision-making, no difference between criteria was found, irrespective of examiner. Conclusion: Low inter-examiner agreement for evaluation of each parameter of USPHS and FDI criteria does not reflect on reproducibility for treatment decision. Both criteria may be suitable for evaluation of composite restorations in primary teeth.

https://doi.org/10.1590/pboci.2020.055 1871 downloads

Shortening of etching time of the dentin in primary teeth restorations: a randomized clinical trial
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CAVALHEIRO, Cleber Paradzinski

; SOUZA, Pablo Soares de

; PEDROTTI, Djessica

; CASAGRANDE, Luciano

; ARDENGHI, Thiago Machado

; ROCHA, Rachel de Oliveira

; RAGGIO, Daniela Prócida

; LENZI, Tathiane Larissa

Brazilian Oral Research

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2020, Volume 34 elocation e081

Resumo: En | Texto: En | PDF: En

Abstract The aim of this study was to investigate the influence of shortening of etching time for dentin on the restoration survival after selective carious tissue removal in primary molars. This two-arm randomized clinical trial included sixty-two subjects (5–8 year-old) and 100 primary molars presenting moderate dentin carious lesions on occlusal surface. The sample was randomly assigned into groups previously to adhesive application (Adper Single Bond 2; 3M ESPE): etching time recommended by manufacturer (15 s) or reduced (7 s). Resin composite (Filtek Bulk Fill Posterior Restorative; 3M ESPE) was inserted in a single increment for all restorations. Restorations were evaluated at 1, 6, 12, and 18 months using FDI criteria. Survival estimates for restorations’ longevity were evaluated with Kaplan-Meier method. Multivariate Cox regression analysis with shared frailty was used to assess the factors associated with failures (p < 0.05). The etching time did not influence the restorations’ survival (HR 0.35 95%CI 0.11–1.12; p = 0.06). Mean estimated time of survival was 17.6 months (95%CI, 17.2–17.9). The survival rates at the 18-month follow-up were 75.7% and 91.4% (AFR: 16.9% and 5.7%) when primary dentin was acid etched for 15 and 7 s, respectively (log-rank p = 0.06). In conclusion, the etching time for dentin did not influence the clinical behavior of adhesives restorations. However, there was a tendency for better clinical outcome when using etching time of 7 s.

https://doi.org/10.1590/1807-3107bor-2020.vol34.0081 1511 downloads

Graduate and Undergraduate Teaching of Primary Tooth Pulpectomy: A Comparison among Brazilian Dental Schools
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Paranhos, Maria Clara

; Pires, Carine Weber

; Lenzi, Tathiane Larissa

; Casagrande, Luciano

; Rocha, Rachel de Oliveira

Pesquisa Brasileira em Odontopediatria e Clínica Integrada

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2019, Volume 19 elocation e4067

Resumo: En | Texto: En | PDF: En

Abstract Objective: To compare the teaching of the pulpectomy in primary teeth among graduate and undergraduate Brazilian dental schools. Material and Methods: From August 2015 to July 2016, an 11-question survey was sent to 44 graduate and 207 undergraduate dental schools. Data obtained were summarized using descriptive statistics. Results: The response rate was higher from graduate (56.8%) than undergraduate (41.1%) courses. Pulpectomy was taught by all participating schools. More than 90% of the undergraduate and graduate courses recommend the use of hand instruments for canals debridement, but the widening of root canals was advised in 69.4% of undergraduate and in 84% of graduate schools. Regarding the irrigatings, 1% sodium hypochlorite as a single irrigating solution was the most taught for both biopulpectomy and necropulpectomy. The iodoform-based Guedes-Pinto paste as the single indication was the preferred root canal filling material in undergraduate schools (30.6%), while the zinc oxide-thickened calcium hydroxide paste as the single option was the most recommended in graduate courses (36%). Endodontic hand file associated with lentulo drill for filling root canals was recommended by most courses. Overall, biopulpectomy was performed in one session, while necropulpectomy led two sessions. Periapical radiograph for diagnosis and final obturation was the most adopted conduct by undergraduate (68.2%) and graduate (72%) schools. Gutta-percha and glass ionomer cement were preferred materials to seal the entrance of the pulp chamber. Conclusion: There was variability in the techniques and materials taught to perform pulpectomy in primary teeth among Brazilian graduate and undergraduate dental schools. Calcium hydroxide paste has been used in similar proportion to iodoform-based paste.

https://doi.org/10.4034/pboci.2019.191.30 621 downloads

Bonding of universal adhesive system to enamel surrounding real-life carious cavities
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Pires, Carine Weber

; Lenzi, Tathiane Larissa

; Soares, Fabio Zovico Maxnuck

; Rocha, Rachel de Oliveira

Brazilian Oral Research

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2019, Volume 33 elocation e038

Resumo: En | Texto: En | PDF: En

Abstract: This study aimed to evaluate the bond strength of a universal adhesive system to enamel surrounding real-life carious cavities. Twenty-eight permanent molars (n = 7) with carious lesions in dentin were subjected to selective carious tissue removal to firm dentin and had their crowns sectioned longitudinally. A universal adhesive system (Single Bond Universal [SBU] used in either etch-and-rinse and self-etch strategies) was compared with an etch-and-rinse Adper Single Bond 2 (ASB) and a self-etch Clearfil SE Bond (CSE) adhesive systems (control systems). Adhesives were applied on the enamel, assumed demineralized, surrounding the cavity margins and on sound enamel (control substrate). Composite cylinders were built (0.72 mm2) and microshear bond strength (µSBS) test was performed after 24 h of water storage. The µSBS values (MPa) were analyzed using two-way ANOVA and Tukey's post hoc tests (α = 0.05). Bond strength values obtained in demineralized enamel surrounding carious cavity margins were significantly lower than that obtained in sound enamel (distant from carious cavity margins) (p = 0.035). The bonding strategy of the SBU did not influenced the bond strength values, which were higher than that obtained with ASB. CSE showed similar µSBS values to ASB and SBU in the self-etch mode. In conclusion, the bond strength to enamel assumed demineralized is lower than to sound enamel. The enamel surrounding carious cavities jeopardize the bonding of universal adhesive system. The bond strength of universal adhesive is similar, regardless to bonding strategy.

https://doi.org/10.1590/1807-3107bor-2019.vol33.0038 2051 downloads

What do Cochrane systematic reviews say about new practices on integrative medicine?
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Riera, Rachel

; Braga, Vinícius Lopes

; Rocha, Luana Pompeu dos Santos

; Bernardo, Daniel Damasceno

; Andrade, Luísa Avelar Fernandes de

; Hsu, Jessica Chiu

; Silva, Luciana Di Giovanni Marques da

; Suetsugu, Rodrigo Cesar de Sá

; Dittrich, Nicole Hosni

; Lima, Lucas Riguete Pereira de

; Silveira, Vicente Penido da

; Kruglensky, Barbara Caon

; Leonel, Letícia de Freitas

; Barros, Edivando de Moura

; Costa, Anderson Adriano Leal Freitas da

; Quintella, Miguel Lins

; Pacheco, Rafael Leite

; Cruz, Carolina de Oliveira

; Martimbianco, Ana Luiza Cabrera

; Pachito, Daniela Vianna

; Mozetic, Vania

; Teixeira, Tatiana de Bruyn Ferraz

; Torloni, Maria Regina

; Atallah, Alvaro Nagib

Sao Paulo Medical Journal

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Mai 2018, Volume 136 Nº 3 Páginas 251 - 261

Resumo: En | Texto: En | PDF: En

ABSTRACT BACKGROUND: This study identified and summarized all Cochrane systematic reviews (SRs) on the effects of ten integrative practices that were recently added to the Brazilian public healthcare system (SUS). DESIGN AND SETTING: Review of systematic reviews, conducted in the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (Unifesp). METHODS: Review of Cochrane SRs on the following interventions were identified, summarized and critically assessed: apitherapy, aromatherapy, bioenergetics, family constellation, flower therapy, chromotherapy, geotherapy, hypnotherapy, hand imposition or ozone therapy. RESULTS: We included a total of 16 SRs: 4 on apitherapy, 4 on aromatherapy, 6 on hypnotherapy and 2 on ozone therapy. No Cochrane SR was found regarding bioenergetics, family constellation, chromotherapy, clay therapy, flower therapy or hand imposition. The only high-quality evidence was in relation to the potential benefit of apitherapy, specifically regarding some benefits from honey dressings for partial healing of burn wounds, for reduction of coughing among children with acute coughs and for preventing allergic reactions to insect stings. CONCLUSION: Except for some specific uses of apitherapy (honey for burn wounds and for acute coughs and bee venom for allergic reactions to insect stings), the use of ten integrative practices that have recently been incorporated into SUS does not seem to be supported by evidence from Cochrane SRs.

https://doi.org/10.1590/1516-3180.2018.0172170418 2326 downloads

Is there a best conventional material for restoring posterior primary teeth? A network meta-analysis
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Pires, Carine Weber

; Pedrotti, Djessica

; Lenzi, Tathiane Larissa

; Soares, Fabio Zovico Maxnuck

; Ziegelmann, Patricia Klarmann

; Rocha, Rachel de Oliveira

Brazilian Oral Research

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2018, Volume 32 elocation e10

Resumo: En | Texto: En | PDF: En

Abstract This study aimed to compare the longevity of different conventional restorative materials placed in posterior primary teeth. This systematic review was conducted following the PRISMA statement and registered in PROSPERO (CRD42016035775). A comprehensive electronic search without date or language restrictions was performed in PubMed/MEDLINE, Cochrane Central Register of Controlled Trials, Scopus, Turning Research Into Practice (TRIP) and Clinical Trials databases up to January 2017, selecting randomized clinical trials that assessed the longevity of at least two different conventional restorative materials performed in primary molars. Seventeen studies were included in this systematic review. Pairwise and network meta-analyses were performed and relative risks and 95% confidence intervals (CI) calculated. Two reviewers independently selected the studies, extracted the data, and assessed the risk of bias. Restorations of primary molars with conventional glass ionomer cement showed increased risk of failure than compomer, resin-modified glass ionomer cement, amalgam, and composite resin. Risk of bias was low in most studies (45.38% of all items across studies). Pediatric dentists should avoid conventional glass ionomer cement for restoring primary molars.

https://doi.org/10.1590/1807-3107bor-2018.vol32.0010 6474 downloads

10.

What do Cochrane systematic reviews say about probiotics as preventive interventions?
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Braga, Vinícius Lopes

; Rocha, Luana Pompeu dos Santos

; Bernardo, Daniel Damasceno

; Cruz, Carolina de Oliveira

; Riera, Rachel

Sao Paulo Medical Journal

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Dez 2017, Volume 135 Nº 6 Páginas 578 - 586

Resumo: En | Texto: En | PDF: En

ABSTRACT BACKGROUND: Probiotics have been used for a range of clinical situations and their use is strongly encouraged by the media worldwide. This study identified and summarized all Cochrane systematic reviews about the preventive effects of probiotics in clinical practice. DESIGN AND SETTING: Review of systematic reviews, conducted in the Discipline of Evidence-Based Medicine, Escola Paulista de Medicina (EPM), Universidade Federal de São Paulo (Unifesp). METHODS: We included all Cochrane reviews on any probiotics when they were used as preventive interventions and compared with no intervention, placebo or any other pharmacological or non-pharmacological intervention. RESULTS: 17 Cochrane systematic reviews fulfilled our inclusion criteria and were summarized in this report. None of the reviews included in the present study provided high-quality evidence for any outcome. The benefits from use of probiotics included decreased incidence of antibiotic-associated diarrhea and Clostridium difficile-associated diarrhea; decreased incidence of upper respiratory tract infections and duration of episodes; decreased need for antibiotics and absences from school due to colds; and decreased incidence of ventilator-associated pneumonia. Probiotics seem to decrease the incidence of gestational diabetes mellitus, birthweight, risk of vaginal infection and incidence of eczema. CONCLUSION: Despite the marketing and the benefits associated with probiotics, there is little scientific evidence supporting the use of probiotics. None of the reviews provided any high-quality evidence for prevention of illnesses through use of probiotics. More trials are needed to gain better knowledge of probiotics and to confirm when their use is beneficial and cost-effective.

https://doi.org/10.1590/1516-3180.2017.0310241017 4377 downloads

11.

Materials used for indirect pulp treatment in primary teeth: a mixed treatment comparisons meta-analysis
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Santos, Pablo Silveira dos

; Pedrotti, Djessica

; Braga, Mariana Minatel

; Rocha, Rachel de Oliveira

; Lenzi, Tathiane Larissa

Brazilian Oral Research

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2017, Volume 31 elocation e101

Resumo: En | Texto: En | PDF: En

Abstract: This study aimed to systematically review the literature to address the question regarding the influence of different materials in the clinical and radiographic success of indirect pulp treatment in primary teeth. A literature search was carried out for articles published prior to January 2017 in PubMed/MEDLINE, CENTRAL, Scopus, TRIP and ClinicalTrials databases; relevant articles included randomized clinical trials that compared materials used for indirect pulp treatment in primary teeth. Two reviewers independently selected the studies and extracted the data. The effects of each material on the outcome (clinical and radiographic failures) were analyzed using a mixed treatment comparisons meta-analysis. The ranking of treatments according to their probability of being the best choice was also calculated. From 1,088 potentially eligible studies, 11 were selected for full-text analysis, and 4 were included in the meta-analysis. In all papers, calcium hydroxide liner was used as the control group versus an adhesive system, resin-modified glass ionomer cement or placebo. The follow-up period ranged from 24 to 48 months, with dropout rates of 0-25.7%. The material type did not significantly affect the risk of failure of the indirect pulp treatment. However, calcium hydroxide presented a higher probability of failure. In conclusion, there is no scientific evidence showing the superiority of any material used for indirect pulp treatment in primary teeth.

https://doi.org/10.1590/1807-3107/2017.vol31.0101 7767 downloads

12.

Efeito do treinamento muscular inspiratório em pacientes submetidos à cirurgia bariátrica: uma revisão sistemática
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Nardi, Angélica Trevisan De

; Real, Amanda Albiero

; Santos, Tamires Daros dos

; Rocha, Rachel de Oliveira

; Lenzi, Tathiane Larissa

Fisioterapia e Pesquisa

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Dez 2016, Volume 23 Nº 4 Páginas 448 - 457

Resumo: Pt En Es | Texto: Pt En Es | PDF: Pt | PDF: En | PDF: Es

RESUMO Estudos têm demonstrado que, dentre as diversas técnicas que envolvem a fisioterapia respiratória, o treinamento muscular inspiratório (TMI) é essencial na recuperação da função pulmonar e na prevenção de complicações respiratórias. Porém, o efeito do TMI em pacientes submetidos à cirurgia bariátrica ainda é inconclusivo. O objetivo deste estudo foi revisar sistematicamente ensaios clínicos randomizados que avaliaram o efeito do TMI em comparação a TMI sham, fisioterapia convencional (exercícios respiratórios e deambulação precoce) ou nenhuma intervenção na função pulmonar em pacientes submetidos à cirurgia bariátrica. A estratégia de busca foi realizada nas bases de dados PubMed / MEDLINE, Cochrane, TRIP, PEDro e Scopus sem restrição de ano de publicação ou de idioma, conforme a recomendação PRISMA. Dois revisores selecionaram os estudos, extraíram os dados e avaliaram o risco de viés de forma independente. Dos 2.184 estudos potencialmente elegíveis, 2 foram incluídos. O critério do risco de viés foi adaptado e dividido em 9 áreas usando o Handbook da Cochrane. Esta revisão incluiu 62 participantes, sendo 30 alocados para receber dispositivo Threshold® TMI, mas em diferentes períodos, pré-operatório e pós-operatório. O TMI promoveu aumento da pressão inspiratória máxima (PIM) em relação à fisioterapia convencional, mas não foram encontradas diferenças significativas na pressão expiratória máxima (PEM). Os estudos apresentaram baixo e incerto risco de viés. O TMI parece ser o tratamento mais eficaz em comparação à fisioterapia convencional isolada tanto no pré quanto no pós-operatório. No entanto, não há nenhuma evidência sólida para a tomada de decisões clínicas.

ABSTRACT Studies have shown that among the various techniques that involve chest physical therapy, the inspiratory muscle training (IMT) is essential in the recovery of lung function and in preventing respiratory complications. However, the effect of IMT on patients undergoing bariatric surgery is still inconclusive. The aim of this study was to systematically review randomized and controlled trials that assessed the effect of IMT compared with sham IMT, standard physical therapy (breathing exercises and early ambulation) or no intervention in the lung function on patients undergoing bariatric surgery. The search was conducted in PubMed/MEDLINE, Cochrane, TRIP, PEDro and Scopus databases with no publication year or language limits, following the preferred reporting items for systematic reviews and meta-analyses (PRISMA) statement. Two reviewers independently selected the studies, extracted the data, and assessed the risk of bias. From 2,184 potentially eligible studies, two studies were included. Bias risk criteria were adapted and divided into nine main areas using the Cochrane Handbook. This review included 62 participants, being 30 allocated to receive Threshold® IMT device, but in different periods: preoperative and postoperative. IMT promoted increased maximal inspiratory pressure (MIP) in relation to standard physical therapy, but no significant differences were found in maximal expiratory pressure (MEP). The studies showed low and unclear bias risk. IMT seems to be the most effective treatment in comparison with standard physical therapy alone in pre- or postoperative period. However, there is no solid evidence for clinical decision-making.

RESUMEN Investigaciones comprobaron que, entre las varias técnicas relacionadas a la fisioterapia respiratoria, el entrenamiento muscular inspiratorio (TMI) es fundamental para la recuperación de la función pulmonar y en la prevención de complicaciones respiratorias. Pero poco se sabe sobre los resultados del TMI en pacientes sometidos a la cirugía bariátrica. El propósito de este estudio es revisar sistemáticamente los estudios clínicos aleatorios que evaluaron los resultados del TMI comparado al TMI sham, fisioterapia convencional (ejercicios respiratorios y deambulación precoz) o ninguna intervención en la función pulmonar en pacientes sometidos a la cirugía bariátrica. Se buscó textos en las bases de datos PubMed / MEDLINE, Cochrane, TRIP, PEDro y Scopus, sin restricción de fecha de publicación ni de idioma según recomienda la PRISMA. Dos revisores eligieron los estudios, recolectaron datos y evaluaron el riesgo de sesgo de forma independiente. De los 2.184 estudios probablemente elegidos, se excluyeron dos. Se adaptó el criterio de riesgo de sesgo y lo dividió en nueve áreas empleando el Manual de Cochrane. En esta revisión participaron 62 personas, siendo 30 de ellas elegidas para recibir el dispositivo Threshold® TMI, pero en momentos distintos, en el preoperatorio y el posoperatorio. A pesar de que el TMI aumentó la presión inspiratoria máxima (PIM) en relación a la fisioterapia convencional, en la presión espiratoria máxima (PEM) no se encontraron diferencias significativas. Los estudios presentaron bajo e incierto riesgo de sesgo. El TMI puede ser el tratamiento más eficaz en comparación con la fisioterapia convencional aislada tanto en el preoperatorio como en el posoperatorio. Pero no se encontraron evidencias concretas en la toma de decisiones clínicas.

https://doi.org/10.1590/1809-2950/16901723042016 5180 downloads

13.

Influence of a heating device and adhesive temperature on bond strength of a simplified ethanol-based adhesive system
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CARVALHO, Marcos Paulo Marchiori

; ROCHA, Rachel de Oliveira

; KREJCI, Ivo

; BORTOLOTTO, Tissiana

; BISOGNO, Fábio Ecke

; SUSIN, Alexandre Henrique

Revista de Odontologia da UNESP

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Abr 2016, Volume 45 Nº 2 Páginas 97 - 102

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Resumo Introdução O aumento da temperatura do adesivo tem sido pesquisado como forma de melhorar a evaporação do solvente, reduzir a viscosidade e melhorar a permeação dos monômeros na dentina. Objetivo Investigar a influência de diferentes métodos de aquecimento na resistência de união à dentina sob um ensaio de microtração de um adesivo de condicionamento ácido total. Material e método Vinte e quatro terceiros molares hígidos foram seccionados transversalmente a fim de expor a superfície plana da dentina. As amostras foram condicionadas ácido fosfórico a 37% e dividido em três grupos (n=8). São eles: 1) Controle - onde o adesivo (Adper Single Bond 2, 3M ESPE) foi aplicado em temperatura normal (25°C); 2) Dispositivo de aquecimento – O adesivo foi aquecido em um dispositivo específico até alcançar a temperatura de 37°C e só então aplicado à dentina; 3) Ar quente – Usou-se jato de ar aquecido a 50°C por 10 segundos a uma distância de 10cm para facilitar a evaporação do solvente. Os espécimes foram restaurados com resina composta (Filtek Z250 A2, 3M ESPE) e preparados para o ensaio de microtração, após 24h de armazenamento em água destilada. Os dados obtidos foram submetidos para análise de variância (ANOVA) e teste de Tukey (p<0,05). Resultado Não houve diferença significativa entre os grupos (p>0,05). As médias da resistência de união para o grupo controle, dispositivo de aquecimento e ar quente foram, respectivamente, 48,5 (± 5,2), 40,35 (± 4,9), e 47,2 (± 5,3). Conclusão Os diferentes métodos de aquecimento não influenciaram significativamente na resistência de união imediata à dentina de um Sistema adesivo de condicionamento ácido total.

Abstract Introduction Increased adhesive temperature has been reported to promote solvent evaporation, reduce viscosity, and improve monomeric permeation into dentin. Objective The aim of this study was to determine the influence of different heating methods on the microtensile bond strength of an etch-and-rinse adhesive to dentin. Material and method Twenty-four caries-free extracted human third molars were transversally sectioned to expose a flat dentinal surface. The samples were etched with 37% phosphoric acid gel and divided into three groups (n = 8): 1) Control - the adhesive system (Adper Single Bond 2; 3M ESPE) was applied at room temperature; 2) Warming device - the adhesive was warmed to 37°C in a custom device before application; and 3) Warm air - the adhesive was warmed to 50°C with an air jet after application on dentin. The specimens were restored with a composite resin (Filtek Z250 A2, 3M ESPE) and prepared for microtensile bond strength testing, after 24 h in water storage. The data were subjected to one-way ANOVA and Tukey's test (p < 0.05). Result There was no significant difference among the groups (p > 0.05). The mean bond strength values in the control, the warming device, and the warm air groups were 48.5 (± 5.2), 40.35 (± 4.9), and 47.2 (± 5.3) MPa, respectively (p = 0.05). Conclusion The different heating methods had no significant influence on the immediate microtensile bond strength of an etch-and-rinse ethanol-based adhesive to dentin.

https://doi.org/10.1590/1807-2577.07315 1677 downloads

14.

CARACTERÍSTICAS DO SÊMEN CAPRINO DESCONGELADO APÓS A ADIÇÃO DE RINGER LACTATO, CITRATO DE SÓDIO E SOLUÇÃO TRIS
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Dias, Júlio Cesar Oliveira

; Santos, Madriano Christilis da Rocha

; Penitente Filho, Jurandy Mauro

; Oliveira, Gisele Dias

; Mendes, Vivian Rachel Araujo

; Mancio, Antonio Bento

Ciência Animal Brasileira

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Jun 2015, Volume 16 Nº 2 Páginas 243 - 250

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

A criopreservação do sêmen é de grande importância para diversas biotecnologias da reprodução, como Inseminação Artificial (IA), Produção de Embriões In Vitro (PIV) e Injeção Intracitoplasmática de Espermatozoides (ICSI). Avaliou-se a estabilidade e persistência da motilidade e vigor dos espermatozoides, assim como alterações da membrana plasmática, após a adição de Ringer com Lactato, citrato de sódio 2,92% ou solução TRIS ao sêmen caprino descongelado. O sêmen foi coletado de dois bodes da raça Parda Alpina, realizando-se os procedimentos padrões de análise e criopreservação seminal. Após a descongelação do sêmen, foram adicionados os diluentes Ringer Lactato, citrato de sódio 2,92% ou solução TRIS, realizando-se os Testes de Termorresistência (TTR), Supravital e Morfológico. No TTR, somente o grupo a que foi adicionada a Solução TRIS obteve motilidade e vigor por maior período (90 minutos; P< 0,05). Não foi encontrada influência da adição das soluções na análise morfológica, assim como no teste Supravital, o qual apresentou valores próximos aos encontrados para motilidade (P> 0,05). Concluiu-se que a adição das soluções não permite uma grande persistência da motilidade e vigor dos espermatozoides descongelados, porém a solução TRIS poderia ser utilizada para expansão de doses seminais utilizadas em biotecnologias reprodutivas in vitro.

Cryopreservation of semen is of great importance for various reproductive biotechnologies such as artificial insemination (IA), In Vitro Embryo Production (PIV) and Intracytoplasmic Sperm Injection (ICSI). The objective of this work was to evaluate the stability and persistence of motility and strength of sperm, as well as changes in the plasma membrane after the addition of Ringer Lactate, sodium citrate 2.92% or TRIS solution in thawed goat semen. Semen was collected from two Alpine Brown goats, and standard procedures for cryopreservation and seminal analysis were performed. After thawing the semen, the extenders Ringer Lactate, sodium citrate 2.92% and TRIS solution were added and Thermoresistance (TTR), Supravital and Morphology Tests were carried out. In TTR, only the group received TRIS solution presented motility and strength for a longer period (90 minutes; P< 0,05). No influence of the addition of the solutions was found in the morphological analysis, as well as in the Supravital Test, which showed values close to those found for motility (P> 0.05). We concluded that the addition of the solutions does not allow a large persistence of motility and strength of thawed sperm, but TRIS solution could be used for expansion of seminal doses used in vitro reproductive biotechnology.

https://doi.org/10.1590/1089-6891v16i224240 2016 downloads

15.

Effect of Two Microshear Test Devices on Bond Strength and Fracture Pattern in Primary Teeth
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Tedesco, Tamara Kerber

; Garcia, Eugenio Jose

; Soares, Fabio Zovico Maxnuck

; Rocha, Rachel de Oliveira

; Grande, Rosa Helena Miranda

Brazilian Dental Journal

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Dez 2013, Volume 24 Nº 6 Páginas 605 - 609

Resumo: Pt En | Texto: Pt En | PDF: Pt | PDF: En

Este estudo in vitro avaliou a influência de dois dispositivos para aplicação de força de cisalhamento em testes de resistência de união ao microcisalhamento e no padrão de fratura em dentina e esmalte de dentes decíduos. Oitenta molares decíduos foram selecionados e superficies planas em esmalte (40 dentes seccionados no sentido mésio-distal) e dentina (40 dentes seccionados transversalmente) foram obtidas. Ambas as superficies foram abrasionadas para padronização da lama dentinária. Dois sistemas adesivos de condicionamento ácido prévio (Adper Single Bond e XP Bond) foram utilizados. Tubos de polietileno foram colocados sobre as superficies, nas quais já haviam sido aplicados os sistemas adesivos, e preenchidos com resina composta. O teste de resistência de união ao microcisalhamento foi realizado após armazenamento dos espécimes em água (24 h/37 °C) utilizando dois dispositivos para a aplicação das forças de cisalhamento: cisalha côncava (Bisco Shear Bond Tester) e cisalha plana (Kratos Industrial Equipment). O padrão de fratura foi avaliado usando estereomicroscópio. Os dados de resistência de união foram submetidos à ANOVA e o teste quiquadrado foi utilizado para comparar a distribuição dos padrões de fratura (α=0,05). Não foram observadas diferenças estatisticamente significantes entre os grupos, tanto para a resistência de união a dentina e esmalte quanto para o padrão de fratura (p>0,05). O modo de falha predominante foi adesiva/mista. Em conclusão, os dispositivos para aplicação de força de cisalhamento não influenciam os valores de resistência de união, independente do sistema adesivo e substrato.

This in vitro study evaluated the influence of two devices for application of shear load in microshear tests on bond strength and fracture pattern of primary enamel and dentin. Eighty primary molars were selected and flat enamel (40 teeth sectioned mesio-distally) and dentin (40 teeth sectioned transversally) surfaces were obtained. Both surfaces were polished to standardize the smear layer. Two-step etch-and-rinse adhesive systems (Adper Single Bond and XP Bond) were used. Polyethylene tubes was placed over the bonded surfaces and filled with composite resin. The microshear testing was performed after storage in water (24 h/37 °C) using two devices for application of microshear loads: a notched rod (Bisco Shear Bond Tester) or a knife edge (Kratos Industrial Equipment). Failure modes were evaluated using a stereomicroscope. Bond strength data were subjected to ANOVA and chi-square test to compare the failure mode distributions (α=0.05). No significant differences were observed between the groups for dentin and enamel bond strength or fracture patterns (p>0.05). The predominant failure mode was adhesive/mixed. In conclusion, the devices for application of shear loads did not influence the bond strength values, regardless of adhesive system and substrate.

https://doi.org/10.1590/0103-6440201302298 3460 downloads Citado 1 vez em SciELO

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