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O presente estudo relata a experiência da criação do aplicativo móvel (APP) RUBOND e o uso de questionários WEB como estratégia de ensinoe avaliação em Odontologia. A criação do aplicativo móvel ocorreu por meio da plataforma Fábrica de Aplicativos, sendo definido a temática dos Sistemas Adesivos Universais como tema central. A elaboração dos questionários para avaliação dos conhecimentos adquiridos por meio do material disponibilizado no APP se deu por meio da plataforma Online Pesquisa. As questões utilizadas foram retiradas de provas do Exame Nacional de Desempenho dos Eestudantes. O acesso aos questionários aconteceuvia linkdisponível no aplicativo móvel.A criação do aplicativo móvel RUBOND e questionários WEB como estratégia de ensino e avaliação em Odontologia podem ser uma ferramenta viável na prática docente e discente, desde que corretamente utilizados. Sugere-se que mais estudos sejam realizados para confirmar as vantagens dos aplicativos móveis e questionários WEB no ensino e avaliação em Odontologia (AU).

The present study reports the experience of creating the RUBOND mobile application (APP) and the use of WEB questionnaires asteaching and assessmentstrategiesin Dentistry. The creation of the mobile application took place through theFábrica de Aplicativos platform, with the theme of Universal Adhesive Systems being defined as a central subject. The preparation of questionnaires to assess the knowledge acquired through the material available in the APP occurredin the Online Pesquisa platform. The questions used were taken fromtests of the National Student Performance Exam(ENADE). The questionnaires wereaccessed via a direct link attached to the mobile APP. The creation of the RUBOND mobile application and WEB questionnaires as a teachingand assessment strategy in Dentistry can be a viable tool in student and teaching practice, as long as they are correctlyused. Further studies are needed to confirm the benefits of mobile APPand WEB questionnaires in teaching and assessment in Dentistry (AU).

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Objective: The aim of this study was to evaluate the microshear bond strength of Universal adhesives to enamel and dentin after one week and eighteen months of water storage. Material and Methods: Fragments from the buccal surfaces of 80 bovine teeth were prepared (12x5x1.0 mm) and ground to obtain flat surfaces of enamel and dentin. Samples were randomly assigned to 8 experimental groups (n=10), according to four adhesive systems (Adper Single Bond Plus/control ­ not a Universal adhesive/ASB; Ambar Universal/AUN; Prime&Bond Active/PBA and Scotchbond Universal/SBU) and two water-storage times (one week and eighteen months after sample preparations). Adhesives were applied according to the manufacturers' instructions and molds were positioned over bonded surfaces. A flowable composite was poured into the molds to fill up their internal diameter and obtain resin cylinder (1.0mm height/0.7mm internal diameter) after light-curing. Bond strength was determined using a testing machine (0.5 mm/min) and data were statistically analyzed by two-way analysis of variance (ANOVA) and the post-hoc Tukey's test (alpha=0.05). Failure patterns were analyzed for all resin cylinder tested. Results: For enamel, differences among adhesives were observed only at 18 months, in which SBU produced lower bond strength values (15.9±3.0 MPa) than the others universal adhesives (AUN: 19.3±4.8 and PBA: 21.4±2.1 MPa) (p<0.05). For dentin, there were differences among adhesives only at 7 days, with PBA showing the highest bond strength (37.4±4.9 MPa) and ASB the lowest one (19.4±3.9 MPa) (p<0.05). Enamel and dentin bond strength of all adhesives decreased significantly after 18 months and reduction percentage varied from 36.9 to 52.4 for enamel and from 35.1 to 62.8 for dentin. Adhesive and mixed failures showed high incidences. Conclusion: Results suggested that adhesives presented differences among them depending on type of hard dental tissue and evaluation time. Enamel and dentin bond strengths of control and all universal adhesives tested were not stable, decreasing at eighteen months. (AU)

Objetivo: O objetivo deste estudo foi avaliar a resistência de união ao microcisalhamento de adesivos universais ao esmalte e dentina após uma semana e dezoito meses de armazenamento em água. Material e Métodos: Fragmentos da superfície vestibular de 80 dentes bovinos foram preparados (12x5x1,0 mm) até o obtenção de superfícies planas de esmalte e dentina. As amostras foram distribuídas aleatoriamente em 8 grupos experimentais (n=10), de acordo com quatro sistemas adesivos (Adper Single Bond Plus / controle - não universal; Ambar Universal; Prime & Bond Active e Scotchbond Universal) e dois tempos de armazenamento em água (uma semana e dezoito meses após o preparo das amostras). Os adesivos foram aplicados de acordo com as instruções dos fabricantes e as matrizes foram posicionadas sobre as superfícies aderidas. Um compósito fluido foi aplicado nas matrizes para preencher seu diâmetro interno e obter o cilindro do compósito por fotopolimeração (1,0 mm de altura / 0,7 mm de diâmetro interno). A resistência de união foi determinada em uma máquina universal de ensaios (0,5mm/min). Os dados foram analisados estatisticamente pela análise de variância dois fatores (ANOVA) e teste de Tukey (alfa 0,05). Resultados: Para o esmalte, foram obtidas diferenças apenas aos 18 meses, em que Scotchbond Universal produziu menor média de resistência de união do que os demais adesivos universais. Para dentina, houve diferenças entre os adesivos apenas aos 7 dias, com o Prime & Bond Active apresentando a maior resistência de união e o Adper Single Bond Plus a menor. Os resultados sugeriram que os adesivos apresentaram diferenças entre si dependendo do substrato e do tempo de avaliação. Conclusão: As resistências de união em esmalte e dentina do controle e de todos os adesivos universais testados não foram estáveis, diminuindo aos dezoito meses (AU)

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O objetivo desse estudo foi avaliar a resistência de união - RU ao cisalhamento de um compósito fluido auto aderente em quatro substratos utilizados na técnica indireta, com uma semana e um ano de armazenamento em água destilada. Quarenta e oito amostras (5 mm largura / 15 mm comprimento / 2 mm espessura) foram preparadas em laboratório protético: 12 amostras do(a) cerômero Adoro/AD, cerâmica/leucita Empress Esthetic/EE, cerâmica/zircônia ZirCAD/ZI (Ivoclar Vivadent), mais a liga Fit Cast SB/ME (Talladium do Brasil), sendo as amostras divididas em dois grupos para cada período de tempo (uma semana e um ano). Dois compósitos fluidos (Controle / FF-Filtek Z350XT Flow / 3M ESPE e o auto aderente / DF-Dyad Flow / Kerr) foram unidos aos quatro substratos. Quatro matrizes Tygon foram posicionadas sobre as amostras, as quais foram preenchidas com os compósitos FF e DF (fotopolimerização 20s). As matrizes foram removidas para expor os corpos de prova (12 por grupo) e as amostras foram armazenadas em água destilada/ 37±2 °C por uma semana e um ano. Após estes períodos, cada amostra foi conectada a uma máquina de ensaios para realização dos ensaios de RU a uma velocidade de 1,0 mm/min, até a falha. Os resultados foram analisados por ANOVA e teste de Tukey (p<0,05). Nos ensaios de uma semana, os substratos leucita e metal apresentaram as maiores médias de RU para ambos os compósitos. Nos ensaios de um ano, os substratos não apresentaram diferença estatística nas médias de RU para ambos os compósitos, com exceção da zircônia que apresentou resultado nulo. Os valores médios de RU, no entanto, foram significativamente menores quando comparados com os resultados dos ensaios de uma semana.(AU)

The aim of this study was to evaluate the shear bond strength (SBS) of a self-adhering flowable composite on four substrates used in indirect technique, for a week and one year of storage in distilled water. Forty eight samples (5 mm wide / 15 mm length / 2 mm thick) were prepared at dental prosthetic laboratory: 12 samples of the ceromer Adoro/AD, leucite ceramic IPS Empress Esthetic/EE, zirconia ceramic ZirCAD/ZI (Ivoclar Vivadent) and the metal ceramic alloy Fit Cast SB/ME (Talladium do Brasil). Samples of each substrate were divided into two groups for each time (a week and one year). Two flowable composites (Control/FF-Filtek Z350 XT Flow/3M ESPE, and the self-adhering/DF-Dyad Flow/Kerr) were bonded to four substrates. Four Tygon tubing were positioned over each sample, which were filled in with the composites FF and DF, and visible light-cured for 20s. The tubings were removed to expose the specimens (12 per group) in format of cylinders, and the samples were stored in distilled water at 37 ± 2°C for one week and one year. After these periods, each sample was attached to testing machine and the specimens were submitted to the shear bond strength test at speed of 1.0mm/min, until failure. The results were analyzed by ANOVA and Tukey test (p<0.05). To one week tests, the substrates leucite and metal showed the highest SBS means, to both composites. For the one-year experiments, the substrates did not show differences in the SBS averages for both composites, except for zirconia that showed null result. However, the SBS averages were lower when compared to one week tests.(AU)

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Objetivo: avaliar a resistência de união (RU) de um compósito autoaderente em quatro substratos usados na técnica direta, nos períodos de uma semana e de um ano de armazenamento em água destilada. Materiais e método: foram utilizadas 96 amostras (5 mm largura / 15 mm comprimento / 2 mm espessura) de dentes bovinos ­ esmalte hígido (EH), esmalte desgastado (ED), dentina média (DM) ­ e do compósito restaurador direto (CD) Filtek Z350 XTR (3M ESPE), sendo 24 amostras por substrato. As amostras foram divididas em dois grupos, conforme o período de armazenamento. Foram utilizados dois compósitos fluidos: o controle Filtek Z350XT FlowR (3M ESPE) (FF) e o autoaderente Dyad FlowR/Kerr (DF), aplicados aos quatro substratos (n=6). Em cada amostra, foram posicionadas quatro matrizes cilíndricas transparentes, preenchidas com os compó- sitos FF/DF, e fotopolimerizadas por vinte segundos. As matrizes foram removidas para expor os corpos de prova (24 por grupo) e armazenadas em água destilada 37±2o C por dois períodos, uma semana e um ano. Após cada período, os corpos de prova foram submetidos ao ensaio de resistência de união ao cisalhamento (velocidade de 1,0 mm/min). Os resultados foram analisados pelo ANOVA/teste de Tukey (p < 0,05). Resultados: nos ensaios de uma semana, o DF, o ED e o CD apresentaram maior RU, não diferindo entre si. O EH e o DM apresentaram menor RU, sem diferença significativa. Nos ensaios de um ano, com o DF, o comportamento foi similar, porém com menor RU para o EH e o DM. Conclusão: os resultados mostram que o compósito Dyad FlowR, após um ano de armazenamento em água destilada, apresentou resistência de união superior ao cisalhamento nos substratos esmalte desgastado e compósito direto.

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Introdução: A odontologia adesiva teve seu início no condicionamento ácido do esmalte. Com o rápido desenvolvimento dos novos produtos, os ensaios in vitro tornaram-se valiosos para comparar a RU dos adesivos ao esmalte, dentina e outros substratos - em análises imediatas ou de longo prazo para avaliar a durabilidade da união. Objetivo: avaliar a resistência de união (RU) de adesivos all-in-one em diferentes substratos após uma semana de armazenamento em água destilada. Metodologia: foram utilizados 75 incisivos bovinos e obtidas 25 amostras de esmalte hígido/EH, 25 de esmalte desgastado/ED, 25 de dentina/DE; mais 25 amostras do compósito Filtek Z350 XT/XT. Cinco adesivos foram aplicados nos substratos, e os grupos divididos (n=5): [1]ácido fosfórico 37%+adesivo controle Adper Single Bond 2; adesivos all-in-one [2]BeautiBond/BB; [3] Bond Force/BF; [4]SE One/SE; [5]Single Bond Universal/UN. Quatro matrizes Tygon foram posicionadas sobre os substratos e preenchidas com o Filtek Z350 XT Flow. Após fotopolimerização (20s), as matrizes foram removidas para expor 4 corpos de prova, perfazendo o total de 20 cilindros por grupo. Decorrido uma semana em água 37°C, os corpos de prova foram testados em uma máquina de ensaios. O microcisalhamento foi executado na base dos cilindros (0,5 mm/min). Os resultados foram expressos em MPa, e analisados pela Anova (p<0,001) e teste de Tukey (p<0,05). Resultados: comparando cada substrato, não houve diferença para o ED e para o EH. Para dentina, os adesivos SE e o UN resultaram em maior RU, além do controle. Para o compósito, a maior RU foi observada no UN. Comparando os substratos, a RU foi menor para alguns adesivos no EH e DE. Conclusão: os adesivos all-in-one são substrato-dependentes. A maior RU foi obtida no UN com o compósito XT, e a menor no BF com dentina. A RU nos substratos ED e XT foi mais estável, quando comparada aos demais substratos.

Introduction: the adhesive dentistry had its beginning in the enamel etching. With the rapid development of new products, in vitro tests have become valuable to compare the UK adhesives to enamel, dentin and other substrates - in immediate or long-term analyzes to evaluate the bond durability. Objective: to evaluate the shear bond strength (SBS) of all-in-one adhesives on different substrates after a week storage in distilled water. Methodology: seventy five bovine incisors were used and obtained 25 samples of uncut enamel/UE; 25 of cut enamel/CE; 25 of dentin/DE; more 25 of Filtek Z350XT/XT. Five adhesives were applied, and divided into 5 groups (n=5): [1]37% phosphoric acid + Single Bond 2/SB adhesive control; [2]BeautiBond/BB; [3]Bond Force/BF; [4]One SE/SE; [5]Single Bond Universal/UN. Four Tygon tubings were positioned on the substrates and filled in with Filtek Z350 XT Flow. After 20s VLC, the tubes were removed to expose 4 specimens for each sample (20 cylinders per group). After a week in distilled water 37°C, the specimens were tested in an universal testing machine. The tensile load resulting in shear was performed on the basis of the cylinder at a speed of 0.5 mm/min. The results were expressed in MPa and analyzed by Anova (p<0,001) and Tukey test (p<0.05). Results: comparing each substrate, there was no difference for the UE and the CE. To dentin, the SE and the UN resulted in higher SBS. For the composite substrate, the higher SBS was observed in UN. Comparing the substrates, the SBS was lower to some adhesives in UE and DE. Conclusion: the all-in-one adhesives are substrate-dependents. The highest SBS was obtained for the UN in the composite substrate, and lowest SBS mean to BF in dentin substrate. The SBS in CE and XT was more stable, when compared to other substrates.

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Introdução: o hemangioma oral é um tumor vascular benigno caracterizado pela proliferação de vasos sanguíneos. Apresenta-se normalmente como mancha ou nódulo arroxeado, cuja coloração varia do vermelho intenso ao roxo, de acordo com a localização e a profundidade no tecido. As principais queixas dos pacientes portadores de hemangiomas são relacionadas ao distúrbio estético, interferências na função mastigatória e, se estiver em área susceptível a trauma, ao risco de hemorragias. O tratamento pode ser através de uma excisão cirúrgica, bem como métodos menos invasivos como a escleroterapia por fármacos, a laserterapia e a crioterapia. Objetivo: relatar um caso de escleroterapia de hemangiomaoral em mucosa jugal tratado no Serviço de Diagnóstico Histopatológico do Curso de Odontologia da Universidade do Vale do Itajaí. Método: o tratamento preconizado foi a escleroterapia pelo fármaco oleato de monoetanolamina a 5% diluído em soro fisiológico, em três aplicações intralesionais. Resultado e conclusão: a terapia esclerosante descrita apresentou-se como técnica segura e confortável ao paciente, tanto economicamente quanto clinicamente, quando utilizada com um correto diagnóstico.

Introduction: oral hemangioma is a benign vascular tumor characterized by proliferation of blood vessels. Usually appears as purplish spot or nodule, whose color ranges from deep red to purple, according to the location and depth in the tissue. The main complaints of patients with hemangiomas are related to the esthetic disturbance, interference with chewing and if it is located in an area prone to trauma, the risk of bleeding. Treatment can be by surgical excision as well as less invasive methods such as sclerotherapy by drugs, laser therapy and criotherapy. Objective: to report a case of sclerotherapy of an oral hemangioma in the oral mucosa treated in the Diagnostic Histopathology Service of the Dental School at the University of Vale do Itajai. Method: the treatment of the sclerotherapy was done using 5% ethanolamine oleate diluted in saline solution in three intralesional applications. Result and conclusion: sclerosing therapy applied to oral hemangiomas shows up a safe and comfortable technique to the patient both economically and clinically when used consistently with a correct diagnosis.

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Introduction: The crown preparation promotes the exposure of dentin tubules. Thus, to avoid post-operative sensitivity, the first approach involves the use of dentin adhesives, and the second one the use of dentin desensitizers. Objective: This study evaluated the effect of dentin desensitizers on microtensile bond strengths (μTBSs) of a resin cement to dentin. Material and methods: Twenty bovine teeth were prepared until obtaining flat dentin surfaces. A standardized smear layer was created (#600-grit SiC paper). The samples were randomly divided into the following four groups (n = 5): no treatment (Control), treatment with Gluma Desensitizer (Heraeus Kulzer), Super Seal (Phoenix Dental) and Teethmate Desensitizer (Kuraray Noritake Dental). The dentin surfaces were then treated with ED Primer II (Kuraray Noritake Dental). Twenty composite blocks, 4 mm thick (Estenia CeB, Kuraray Noritake Dental) were used. The composite surfaces were abraded with aluminum oxide (50 μm), and then silanized. The composite block was bonded to the dentin surface with a resin cement (Panavia F 2.0, Kuraray Noritake Dental) according to the manufacturer's instructions. After 24-hour storage (37ºC, 100% RH), the bonded samples were cut into beam-shaped microtensile specimens and loaded in tension until failure. Data were analyzed with one-way ANOVA and the Dunnett's test (α = 0.05). An SEM was used to examine the failure modes. Results: The μTBSs (MPa ± SD) were: 24.4 ± 3.2 (Control), 14.0 ± 5.6 (Gluma Desensitizer), 8.6 ± 4.7 (Super Seal), and 34.7 ± 4.6 (Teethmate Desensitizer), in which there were significant differences among the four groups (p < 0.05). The Teethmate Desensitizer group showed the highest μTBS, while the Super Seal group showed the lowest mean of μTBS to dentin. Conclusion: The efficacy of the desensitizers is material-dependent; Gluma Desensitizer and Super Seal decreased the μTBSs, however, Teethmate Desensitizer improved it.

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Introduction: Simplified restorative materials may be a logical next step for dental manufacturers. Objective: The aim of this study was to evaluate the shear bond strength of a self-adhering flowable composite to four substrates used in indirect technique. Material and methods: Twenty-four samples (5 mm wide, 15 mm length and 2 mm thick / six blocks each substrate) were prepared in the dental prosthetic laboratory. The following materials were used: ceromer (SR Adoro/AD, Ivoclar Vivadent), leucite ceramic (IPS Empress Esthetic/EE, Ivoclar Vivadent), zirconia ceramic (ZirCAD/ZI, Ivoclar Vivadent); metal ceramic alloy (Fit Cast SB/ME, Talladium do Brasil). Samples of each substrate were divided into two groups (n = 3). Two flowable composites (Control/FF - Filtek Z350 XT Flow/3M ESPE, and the self-adhering/DF - Dyad Flow/Kerr) were bonded to the four substrates. Four Tygon tubings were positioned over each sample, which were filled in with the composites FF and DF, and visible light-cured for 20 s. The tubings were removed to expose the specimens (12 per group) in format of cylinders and samples were stored in distilled water at 37±2°C for one week. After this period, each sample was attached to testing machine and the specimens were submitted to the shear bond strength test at speed of 1.0 mm/min, until failure. The results were analyzed by two-way ANOVA and Tukey test (p < 0.05). Results: The means (SD) were (in MPa): AD + FF = 34.4 ± 4.9; AD + DF = 28.2 ± 4.2; EE + FF = 29.7 ± 5.8; EE + DF = 32.3 ± 6.9; ZI + FF = 23.2 ± 5.4; ZI + DF = 8.5 ± 1.5; ME + FF = 28.9 ± 4.2; ME + DF = 31.7 ± 4.5. Conclusion: The efficacy of flowable composites is material-dependent. The self-adhering composite provided lower bond strength only to zirconia ceramic. Comparing with the control group, Dyad Flow showed lower bond strength to the ceromer and zirconia ceramic.

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Introduction: Simplified restorative materials may be a logical next step for dental manufacturers. Objective: The aim of this study was to evaluate the shear bond strength of a self-adhering flowable composite to four substrates used in direct technique. Material and methods: Eighteen samples (5 mm wide, 15 mm length and 2 mm thick) of bovine teeth - uncut enamel/UE, cut enamel/CE, median dentin/MD (6 samples each) - and blocks (also 6 samples) of the nanocomposite/NC Filtek Z350 XT (3M ESPE) were used, and samples of each substrate were divided into two groups (n = 3). Two flowable composites (Control/FF - Filtek Z350 XT Flow/3M ESPE, and the self-adhering/DF - Dyad Flow/Kerr) were bonded to the four substrates. For all groups and in each sample, four Tygon tubings were positioned over the sample, which were filled in with the composites FF and DF, and visible light-cured for 20 s. The tubings were removed to expose the cylinder-shape specimens (12 per group) and samples were stored in relative humidity at 37±2°C for one week. After this period, each sample was attached to testing machine and the specimens were submitted to the shear bond strength test at speed of 1.0 mm/min, until failure. The results were analyzed by two-way ANOVA and Tukey test (p < 0.05). Results: The means (SD) were (in MPa): UE + FF = 20.8 ± 1.0; UE + DF = 23.9 ± 3.1; CE + FF = 22.7 ± 1.8; CE + DF = 29.6 ± 5.4; MD + FF = 24.8 ± 4.5; MD + DF = 20.8 ± 3.2; NC + FF = 25.9 ± 6.2; NC + DF = 28.4 ± 5.1. Conclusion: The efficacy of flowable composites is material-dependent. The self-adhering composite provided higher bond strength on both cut enamel and nanocomposite. Comparing to the control group, Dyad Flow showed lower bond strength to median dentin, however higher bond strength to cut enamel.

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Objective:The aim of this study was to evaluate the shear bond strength (SBS) of two resin cements to four leucite-reinforced ceramics. Material and methods: Forty ceramic blocks (4 mm wide, 14 mm length and 2 mm thick) were used and the samples abraded with aluminum oxide (90 µm). The samples were divided into eight groups (n = 5). Two resin cements (conventional RelyX ARC and self-adhesive RelyX U100 - 3M ESPE) were bonded to Creapress (CRE-Creation/Klema), Finesse All-Ceramic (FIN-Dentsply/ Ceramco), IPS Empress Esthetic (IEE-Ivoclar Vivadent) and Vita PM9 (PM9-Vita). For all groups and in each ceramic block, after application of 10% hydrofluoric acid and silanation, three Tygon tubings were positioned over the ceramics, which were filled in with the resin cements (light-cure for 40 s). The tubings were removed to expose the specimens in format of cylinders (area: 0.38 mm2) and samples were stored in relative humidity at 24±2 °C for one week. After this period, each sample was attached to testing machine and the specimens were submitted to shear bond test (applied at the base of the specimen/cement cylinder with a thin wire/0.2 mm) at speed of 0.5 mm/ min, until failure. The results were analyzed by two-wayANOVA (resin cements and ceramic systems) and Tukey test (p<0.05). Results: The means (SD) were (in MPa): ARC + CRE = 32.1±4.3; ARC + FIN = 28.3±3.7; ARC + IEE = 25.9±4.4; ARC + PM9 = 22.2±2.1; U100 + CRE = 38.0±5.2; U100 + FIN = 36.9±2.8; U100 + IEE = 38.4±2.9; U100 + PM9 = 34.3 ±7.3. U100 showed higher SBS to ceramics than ARC. U100 had higher SBS when applied on IEE ceramic than on PM9. For ARC, SBS obtained with CRE was higher than with IEE and PM9. Conclusion: RelyX U100 can provide higher SBS to leucite-reinforced ceramics than conventional resin cement. The resin cements applied on the PM9 ceramic surface resulted in lower SBS.