Influence of different adhesion strategies on glass fiber post retention.

Background: Failures in glass fiber post (GFP) retention may be associated with low adhesion achieved in root dentin. Material and Methods: 55 single-rooted premolars were endodontically treated and distributed according to different adhesion strategies (n=11): G1: RelyX ARC (3M ESPE; etch-rinse strategy); G2: Relyx Ultimate (3M ESPE; etch-rinse strategy); G3: AllCem (FGM; etch-rinse strategy); G4: Relyx Ultimate (3M ESPE; self-etching strategy); G5: RelyX U200 (3M ESPE; self-adhesive strategy). For Bonding Strength (BS) analysis, the roots were sectioned in slices (1.0mm thickness) corresponding to each root third and submitted to push-out test. The type of failure was assessed by scanning electron microscopy (SEM). Results: The highest BS averages were found in G2 and G3. However, in the middle and apical root thirds, G3 showed statistically similar results to G4 and G5. In the cervical and middle third, G1 was statistically similar to G4 and G5. The mixed type of failure was the most common in all groups. Conclusions: Self-etching (G4) and self-adhesive resin (G5) cements, showed similar BS results of immediate bonding in the cementation of GFP compared to conventional resin cements (G1, G2, G3). Key words:Dental Cements, Dentin-Bonding Agents, Post and Core Technique, Dental Bonding.

Evaluation of different composite resin finishing and polishing protocols by confocal laser scan microscopy

Aim This study aimed to analyze the influence of finishing and polishing (F/P) protocols on resin surface through roughness (Ra) values and laser scan microscopy observations. Methods Forty-eight (n=48) resin specimens were sorted into four groups (n=12), according to the type of resin used: Filtek Z250 (Z250), Filtek Z350 (Z350), Filtek One Bulk Fill (BF), Filtek P60 (P60). The specimens were sorted into six groups according to the type of F/P system used (n=2/group): Control group, Diamond bur (KG Sorensen), Soflex Pop-On Discs (3M ESPE), Soflex Spiral (3M ESPE), Dura Gloss (American Burs), and Praxis (TDV). Results The highest roughness values (Ra) were attributed to BF group for all F/P systems, except for the Soft-Lex PopOn discs. The Soft-Lex PopOn, Spiral, and Praxis discs presented a better performance for the surface treatment of the tested composite resins. Regardless of the restorative material, the use of diamond bur or single-step abrasive rubber (Dura Gloss) were associated with the highest Ra values. Conclusion The effect of F/P systems on Ra is material-dependent and instrument or system-dependent.

Evaluation of ceramic veneer adaptation by optical coherence tomography: a clinical report / Avaliação da adaptação de laminado cerâmico por tomografia de coerência óptica: relato de caso

Introduction: Ceramic veneers represent a treatment approach in aesthetic dentistry. They are indicated in cases of alterations in size, contour, form and color of the teeth. The clinical and radiographic examinations may not allow the correct identification of failures in the treatment with ceramic veneers. Objective: To report the use of Optical Coherence Tomography (OCT) for the evaluation and repair of an aesthetic oral rehabilitation involving ceramic veneers. Case report: A 24-year-old female patient complained of unsatisfied color change in the ceramic veneer placed on the right maxillary central incisor. The clinical examination showed color changes between the middle and incisal thirds of mesial surface of the tooth crown. The OCT sagittal images evidenced the presence of bubbles or gaps in the adhesive interface. The treatment consisted of repair of the restoration by infiltration of a composite resin. Conclusion: The OCT was found to be valid tool to evaluate the adaptation of the ceramic veneer placed on the maxillary central incisor (AU)

Introdução: Laminados cerâmicos representam uma abordagem de tratamento em Odontologia. São indicados em casos de alterações no tamanho, contorno, forma e cor dos dentes. O exame clínico e o emprego de radiografias convencionais podem não permitir a correta identificação de falhas no tratamento com laminados cerâmicos. Objetivo:Relatamos o uso da tomografia de coerência óptica (TCO) para avaliação da adaptação e reparo de uma reabilitação oral estética com laminados cerâmicos. Relato de caso:Paciente do sexo feminino, 24 anos, queixou-se de alteração de cor em laminado cerâmica cimentado no incisivo central superior direito. O exame clínico evidenciou alterações de cor entre os terços médio e incisal da superfície mesial do dente. As imagens obtidas por TCO mostraram a presença de bolhas ou gaps na interface adesiva da região. O plano de tratamento consistiu no reparo mediante infiltração de uma resina composta no local indicado pela TCO. Conclusão: A tomografia de coerência óptica se mostrou um método auxiliar eficaz para análise da adaptação do laminado cerâmico no incisivo superior direito. (AU)

Color stability of Bulk-Fill composite restorations.

BACKGROUND: The color stability of the composite resin is an important property that influences its clinical longevity, which remains an inherent challenge to the material. Thus, the purpose of this study was to evaluate the color stability of bulk-fill resins when exposed to dye. MATERIAL AND METHODS: Cavities were prepared in 80 bovine incisors, which were randomly assigned into 4 groups (n = 20) according with the resin composite used: P60 (Control Group - Filtek P60, 3M/ESPE), FP (Filtek Bulk-Fill Posterior, 3M/ESPE), SDR (SDR, Dentsply) and FF (Filtek Bulk Fill Flow, 3M/ESPE). All restorations were performed according to the protocol of each manufacturer, the control group was restored using the incremental technique, and the other groups using single-increment technique. The color of each restoration was measured using a portable digital spectrophotometer (Easyshade-Vita) according to the CIELab system, and then the teeth were submerged in red wine for 07 days, kept in a biological oven at 37ºC. New color registration was performed to measure the ΔE index of color variation. RESULTS: The P60 group had the lowest average ΔE (16.96), while the FF group had the highest average (28.09) and ranged from 21.19 to 26.28 in the FP and SDR groups. CONCLUSIONS: Analysis of the color variation showed that the control group had better color stability than the Bulk-Fill resins evaluated. Key words:Dental restoration failure, Food coloring agents, polymerization.

The influence of violet LED light on tooth bleaching protocols: In vitro study of bleaching effectiveness.

BACKGROUND: Employing violet LED on tooth bleaching is a recent but promising technique. This study aimed to assess the bleaching effectiveness of violet light-emitting diodes (LEDs) associated or not with bleaching gels containing hydrogen peroxide (HP) or carbamide peroxide (CP). METHODS: seventy bovine incisors were randomly assigned into 7 groups (n = 10) according to the technique and whitening product used. Group C: Artificial saliva (placebo); Group HP L-: three sessions of HP at 35 % without light activation; Group CP L-: three weeks of CP at 16 % for 4 h/day; Group HP CP L-: three sessions of HP at 35 % without light activation + 2 weeks of CP at 16 %, for 4 h/day; Group LED: four sessions with violet LED; Group HP L+: three sessions with HP at 35 % + violet LED; Group CP L+: three weeks with CP at 16 % for 4 h/day + violet LED. Color changes (ΔE and ΔL) were measured with a portable digital spectrophotometer. RESULTS: The results were similar between the groups of bleaching protocols, demonstrating that the use of the violet LED did not influence bleaching effectiveness when using HP 35 % or CP 16 % after 3 sessions. In addition, the use of the violet LED alone obtained ΔE values ​​similar to the protocols with the use of peroxides, however less variation of ΔL was observed for this group. CONCLUSIONS: The use of violet LEDs associated or not with bleaching gels was effective for tooth whitening. In addition, it was also concluded that the physical lightening technique with violet LED used alone produced less variation in dental brightness.

Influence of different thermopolymerization methods on composite resin microhardness.

BACKGROUND: Additional heat polymerization in composite resins allows greater effective-ness of microhardness, flexural strength, fracture tough-ness, wear resistance, and increased color stability. MATERIAL AND METHODS: 150 composite resin specimens were made using a 4 mm diameter and 2 mm thick bipartite steel matrix. Five resins composed of different compositions were tested (Brilliant Everglow/Coltene, Filtek One BulkFill/3M, Filtek P60/3M, Filtek Z350XT/3M, Filtek Z250XT/3M), and for each of them three types of polymerization were tested: light curing only (n=50); photopolymerization + autoclave thermopolymerization (n=50) and photopolymerization + microwave thermopolymerization (n=50). Each specimen was submitted to three indentations by means of the Vickers microhardness test, applying a load of 300gf, associated with the time of 15s. Data were analyzed descriptively by means of statistics, standard deviation and coefficient of variation and inferentially by the F test (ANOVA) in the comparison between groups. The margin of error used in statistical test decisions was 5%. RESULTS: The highest vicker microhardness averages were from the Control group (light curing only) on P60 (82.16) and Z250 XT (79.61) resins. The lowest averages were all verified on Brilliant Everglow resin in all polymerization methods studied: Photopolymerization (37.32), with microwave (43.80) and autoclave (45.12), followed by Bulk Fill 3M resin, ranged from 52.23 to 59.15. CONCLUSIONS: Both autoclave and microwave thermopolymerization methods showed similar behavior on the microhardness of the composites studied. Considering the resin type, there was a varied behavior compared to thermopolymerization, which increased the microhardness values for Brilliant Everglow resins (Coltene) and Filtek One Bulkfill (3M) and decreased for Filtek P60, Filtek Z350XT and Filtek Z250XT resins. Key words:Dentistry, composite resins, polymerization.

Clinical Evaluation of Postoperative Sensitivity in Class I Resin Composite Restorations / Avaliação clínica da sensibilidade pós-operatória em restaurações classe I em compósitos restauradores

Objective: To evaluate the post operative sensitivity in posterior restorations with different resin composites and adhesive systems as well as the influence of the depth and extent of the dental cavity. Material and Methods: A double-blind clinical trial was carried out with 80 class I restorations of 16 patients. The participants were divided into 4 groups according to the adhesive system + composite: F + P (Filtek P90™ + P90™); R + S (Rok™ + Stae™); P + A (P60™ + Adper SE PLUS™); E + X (Evolux™ + XPBond™ Adhesive). After 7, 15 and 30 days, the presence of postoperative sensitivity was evaluated and classified according to type and intensity. The data were submitted to Pearson'schi-square test, Fisher's exact teste, Student'st-test and ANOVA. A significance level of 5%was used for all tests. Results: The presence of post operative sensitivity was approximately 6% of the total sample. The sensitivity decreased with the evaluation time, with the smallest reduction occurring from the 7-day evaluation compared to the other evaluations. Conclusion: There was found no evidence of influence of the resin composite and adhesive type, depth and extension of the cavities for the presence of postoperative sensitivity. (AU)

Objetivo: Avaliar a prevalência da sensibilidade pós-operatória em dentes posteriores restaurados com diferentes resinas compostas e sistemas adesivos em relação a profundidade e extensão da cavidade dental. Material e Métodos: Estudo clínico duplo-cego foi realizado com 80 restaurações classe I em 16 pacientes. Os pacientes foram divididos em 04 grupos de acordo com compósito restaurador e sistema adesivo: F + P (Filtek P90™ + P90™); R + S (Rok™ + Stae™); P + A (P60™ + Adper SEPLUS™); E + X (Evolux™ + XPBond™ Adhesive). Após 7, 15 e 30 dias, a presença de sensibilidade pós-operatória foi avaliada e classificada quanto ao tipo e intensidade. Os dados foram analisados estatisticamente mediante os testes estatísticos qui-quadrado de Pearson, exato de Fisher, t de Student e ANOVA. Um nível de significância de 5%foi utilizado para todas as analises. Resultados: A presença de sensibilidade pós-operatória foi de aproximadamente 6% na amostra. A sensibilidade reduziu com o tempo de avaliação, sendo que a menor redução ocorreu da avaliação de 7 dias para as outras avaliações e a menor de 15 para 30 dias. Conclusão: Não se evidenciou influência do tipo de compósito e adesivo, profundidade e extensão das cavidades na presença de sensibilidade pós-operatória. (AU)

Multidisciplinary Approach to Smile Restoration: Gingivoplasty, Tooth Bleaching, and Dental Re-anatomization.

This article reports on the case of a patient who underwent a multidisciplinary treatment in smile design that entailed dental cosmetic techniques involving esthetic periodontal surgery, teeth bleaching, and re-anatomization of the upper incisors. The male patient presented with a chief complaint of an excessive gingival display while smiling, as well as small, darkened teeth with spaces between them. After diagnosis and patient consent, therapy began in the following stages: periodontal plastic surgery with probing, bleeding points delimitation, beveled incision, removal of the gingival band with periodontal curettes, and finishing with an electric scalpel. After 21 days following surgery, dental bleaching using a combined technique that included two sessions of in-office bleaching (35% hydrogen peroxide) and 2 weeks of at-home bleaching (carbamide peroxide 16% for 4 hours per day) was carried out, followed by dental re-anatomization using resin composite. Diagnostic waxing, mock-up, fabrication of a palatal silicone index, incremental sculpturing, and structuring the restoration of the palatal shell to the vestibular surfaces was then completed, followed by occlusal adjustment, finishing, and polishing. The multidisciplinary intervention was fundamental for the accomplishment of the proposed treatment that combined biological, functional, and esthetic concepts.

In vivo optical coherence tomographic imaging to monitor gingival recovery and the adhesive interface in aesthetic oral rehabilitation: A case report.

The available methods for veneer evaluation are limited to clinical and radiographic examinations, which may not allow the appropriate identification of failure. In this report, we demonstrate the use of optical coherence tomography (OCT) as a noninvasive diagnostic and follow-up method to evaluate gingival recovery and the adhesive interface in aesthetic oral rehabilitation involving periodontal plastic surgery and ceramic laminate veneers. OCT was efficient for evaluating both soft and hard tissues, as well as the quality of the adhesive interface. In conclusion, OCT was found to be a promising approach for the professional evaluation of aesthetic oral rehabilitation, as it was capable of generating images that enabled the analysis of gingival recovery and the adhesive interface.

Restorations with Bulk Fill restorative system: case report / Restaurações com sistema restaurador Bulk Fill: relato de caso

ABSTRACT Bulk Fill Composite resins are restorative materials that present low tension and polymerization shrinkage, allowing them to be inserted in a single increment of up to 4 mm of thickness, in a restorative cavity. This paper aims to report a clinical case of restorations done on posterior teeth with Bulk Fill restorative system, using selective acid-etching with self-etch adhesive system. Patient, male, 24 years old, presented a carious lesion on the occlusal surface of dental element 37 and an occlusal unsatisfactory amalgam restoration, on element 36. A restorative treatment with Universal Bond 3M / ESPE and bulk fill composite resin (3M / ESPE) was done. According to the case described, it was possible to observe that the materials and techniques used restored the form and function of the teeth involved, preserving pulp vitality with a satisfactory aesthetic result. The bulk fill resins employed offer practicality and decrease clinical time, with satisfactory clinical applicability in the aesthetic and functional rehabilitation of posterior teeth.

RESUMO Resinas compostas do tipo Bulk fill constituem um material restaurador que apresenta baixas tensão e contração de polimerização, podendo ser inserido em incremento único, de até 4mm de espessura, numa cavidade. Este trabalho objetiva relatar um caso clínico de restaurações em dentes posteriores com o sistema restaurador Bulk fill, empregando o condicionamento ácido seletivo com sistema adesivo autocondicionante de emprego universal. Paciente, sexo masculino, 24 anos, apresentava lesão de cárie na face oclusal do elemento dentário 37 e restauração oclusal de amálgama insatisfatória, no elemento 36. Sendo proposto e realizado tratamento restaurador com Single Bond Universal 3M/ESPE e resina composta bulk fill (3M/ESPE). De acordo com o caso descrito, foi possível observar que os materiais e técnica empregados restituíram forma e função dos dentes envolvidos, preservando a vitalidade pulpar com estética considerada satisfatória. As resinas bulk fill empregadas oferecem praticidade e diminuição do tempo clínico, tendo aplicabilidade clínica satisfatória na reabilitação estética e funcional de dentes posteriores.

Impact of dental treatment on self-esteem and oral health selfperception of children and adolescents victims of sexual abuse / Impacto do tratamento odontológico na autoestima e autopercepção de saúde bucal de crianças e adolescentes vítimas de abuso sexual

Objective: To evaluate the oral health selfperception and the influence of dental treatment on the self-esteem of children and adolescents victims of sexual abuse. Material and Methods: It was adopted a qualitative methodology that emphasized the deepening and comprehension of the answers obtained. Six children and adolescents, from both genders, victims of sexual abuse in the last two years, aged between 10 and 15, took part of the study. A questionnaire was applied before and after the dental treatment in order to evaluate changes in the self-perception and self-esteem of the individuals. The answers were categorized into two thematic axes with the use of the qualitative content analysis: self-perception and self-esteem. Psychological attendance prior and after the dental interventions enabled to comprehend the changes observed. Results: The participants presented a coherent self-perception in relation to the present clinical situation and an increase of their self-esteem after the dental interventions. Conclusion: Dental treatment contributed to improvements regarding self-esteem and oral health self-perception in victims of sexual abuse. (AU)

Objetivo: Analisar a autopercepção da saúde bucal e a influência do tratamento odontológico na autoestima de crianças e adolescentes vítimas de abuso sexual. Material e Métodos: Utilizou-se a metodologia para análise de conteúdo qualitativa que enfatizou o aprofundamento e a compreensão das respostas obtidas. Seis crianças e adolescentes, ambos os gêneros, vítimas de abuso sexual nos últimos dois anos, com idade entre 10 e 15 anos, participaram do estudo. Um questionário foi aplicado antes e após o tratamento odontológico para avaliar mudanças na autopercepção e na autoestima dos indivíduos. Através da análise de conteúdo, as respostas foram categorizadas em dois eixos temáticos: autopercepção e autoestima. O atendimento psicológico antes e após as intervenções odontológicas possibilitou compreender as mudanças observadas. Resultados: Os participantes deste estudo apresentaram uma autopercepção de saúde bucal coerente com a realidade clínica encontrada e que houve aumento da autoestima após as intervenções odontológicas. Conclusão: O tratamento odontológico contribuiu para melhorias na autoestima e autopercepção da saúde bucal das crianças e adolescentes vítimas de abuso sexual. (AU)

Prefabricated composite resin veneers: a clinical case report / Facetas pré-fabricadas em resina composta: relato de caso

The authors present a complete clinical case report of functional and aesthetic rehabilitation of the smile harmony of a 23-year-old male patient through periodontal plastic surgery, tooth bleaching and prefabricated composite resin veneers, emphasizing the advantages, limitations and patient's perceptions about the treatment. After clinical and radiographic evaluations, extra and intra-oral photographs were taken, plaster study models were obtained, digital smile design and diagnostic wax-up were performed. The patient accepted and authorized the proposed dental procedures. The treatment proved to be effective, being a practical and safe approach, with aesthetic recovery of the smile harmony and patient satisfaction. (AU)

Os autores apresentam um caso clínico completo envolvendo reabilitação funcional e estética da harmonia do sorriso de um paciente de 23 anos de idade através da associação de plastia gengival, clareamento dental e facetas pré-fabricadas de resina composta, ressaltando vantagens, limitações e a percepção do paciente. Após análise clínica, radiográfica, realizouse fotos intra/extra orais, obteve-se modelos de estudo em gesso e foram realizados o planejamento digital do sorriso e enceramento diagnóstico. Os procedimentos propostos foram aceitos e autorizados pelo paciente antes da sua realização. O tratamento realizado mostrou-se efetivo como uma alternativa prática e segura, com restabelecimento estético e satisfação do paciente.(AU)

Clinical performance of class I occlusal composite resin restorations: a multicenter double-blinded randomized clinical trial / Performance clínica de restaurações oclusais classe I em resina composta: ensaio clínico randomizado duplo-cego e multicêntrico

Objective: To evaluate the 6-month clinical performance of class I occlusal composite resin restorations through a multicenter, randomized, double-blind, clinical trial. Material and Methods: Two hundred and eighty class I occlusal restorations were performed in 70 patients (aged between 17 to 50 years). The restorations were divided into four groups: G1 (Filtek P60/3M ESPE); G2 (Rok/SDI); G3 (Filtek™ P90/3M ESPE); G4 (Evolux/Dentsply). Two pre-calibrated dental practitioners performed and evaluated the restorative procedures regarding to color match, marginal discoloration, recurrent caries, wear (anatomic form) and marginal integrity according to the USPHS criteria. Results: In 85.8% of the evaluated restorations was observed the ideal score (A) for color match; 91.4% for marginal discoloration; 100% for recurrent caries; 87.7% for wear (anatomic form) and 99.3% for marginal integrity. Conclusion: The composite resins used in this study presented satisfactory and similar clinical performance in a 6-month clinical evaluation. (AU)

Objetivos: Avaliar através de um ensaio clínico randomizado duplo-cego e multicêntrico o desempenho clínico de restaurações classe I oclusais realizadas em dentes posteriores. Material e Métodos: Foram realizadas duzentas e oitenta restaurações em 70 pacientes dos gêneros masculino e feminino (entre 17 e 50 anos). As restaurações foram divididas em 4 grupos: G1 (Filtek P60/3M ESPE); G2 ( Rok/SDI); G3 Filtek TM P90/3M ESPE); G4 (Evolux/Dentsply). Dois operadores précalibrados avaliaram os procedimentos restauradores em relação a reprodução da cor, descoloração marginal, incidência de cárie, desgaste e integridade marginal de acordo com os critérios da USPHS. Resultados: De um total de restaurações avaliadas, 85,8% receberam score ideal (A) para reprodução da cor; 91,4% para descoloração marginal; 100% para incidência de cárie; 87,7% para contorno e 99,3% para integridade marginal. Conclusão: Os materiais empregados neste estudo apresentaram desempenho clínico satisfatório e semelhante após avaliação clínica de 06 meses. (AU)

COMPORTAMENTO CLÍNICO DE RESINAS COMPOSTAS EM DENTES POSTERIORES - REVISÃO SISTEMATIZADA DA LITERATURA / Clinical Behavior of Composite Resins in Posterior Teeth - Systematic Literature Review

Dentre os materiais restauradores diretos empregados na atualidade, as resinas compostas constituem a primeira opção para a restauração de dentes posteriores quando a estética é requisitada. O Objetivo deste estudo é revisar a literatura de forma sistemática, sobre a avaliação do comportamento clínico de restaurações de resina composta em dentes posteriores. Onze artigos que tratavam sobre o tema, publicados em periódicos científicos indexados no período de 2005 a 2015, foram selecionados após pesquisa bibliográfica nas seguintes bases de dados: LILACS, MEDLINE, BBO e SCIELO; utilizandose os descritores combinados: Restaurações diretas, Resinas compostas, Avaliação clínica, Dentes posteriores, Materiais restauradores. Deles foram retiradas as principais informações contidas no texto, a respeito das características de avaliação desses materiais em estudos clínicos científicos. Sete artigos relataram desempenho clínico aceitável para as restaurações avaliadas, observando-se que alguns tipos de cavidades são mais factíveis a falhas após a realização das restaurações. A utilização de resinas compostas em dentes posteriores apresenta aceitabilidade e sucesso clínico. Suas falhas são atribuídas principalmente às propriedades do próprio material restaurador e à sensibilidade da técnica restauradora, sendo mais comuns em restaurações de cavidades tipo classe II.

Among the restorers direct employees today materials, composites are the first choice for restoring posterior teeth when aesthetics are required. The aim of this study is to review the literature in a systematic way on the evaluation of the clinical behavior of composite restorations in posterior teeth. Eleven articles that dealt on the subject, published in scientific journals indexed in the period from 2005 to 2015, were selected after literature search in the following databases: LILACS, MEDLINE, BBO and SCIELO; using the combined descriptors: Direct Restorations, Composite resins, Clinical, later teeth, restorative materials. Of them were taken key information contained in the text, regarding the evaluation of characteristics of these materials in scientific clinical studies. Seven articles reported acceptable clinical performance for the evaluated restorations, noting that some types of cavities are more feasible fault after the completion of the restorations. The use of composite resins in posterior teeth presents acceptability and clinical success. Your failures are attributed mainly to the properties of the restorative material itself and the sensitivity of restorative technique, being more common in restorations of class II cavities.

Evaluation of acidulated dentifrice influence on fluoride releasing from glass-ionomer cements / Avaliação da influência de creme dental acidulado na liberação de flúor de cimentos de ionômero de vidro

Objetivo: Avaliar a influência da exposição a um creme dental acidulado sobre a liberação de flúorde Cimentos de Ionômero de Vidro (CIV). Material e Métodos: Confeccionou-se 27 corpos de prova divididos em 3 grupos: G1 (Maxion - R), G2 (KetacMolar 3M/ESPE) e G3 (Vittremer 3M/ESPE), subdividido em subgrupos (n = 3): A (exposição ao creme dental flúor acidulado – pH 4,5 / 7 h / 37ºC), B (exposição ao creme dental fluoretado não acidulado / 7 h / 37 ºC) e C (controle - exposição à saliva artificial). Após exposição aos cremes dentais,os corpos de prova foram imersos em saliva artificial e aferidas a liberação de flúor nos períodos de tempo:1 e 14 dias. Os dados obtidos foram submetidos a análise de variância, utilizando o pacote SPSS (Statiscal Package for Social Science). Aplicou-se seo Teste ANOVA com 5% de probabilidade, para comparação das médias e do comportamento de cada material. Resultados: A exposição ao creme dental ácido apresentou valores de liberação de flúor (ppm/mm2) que variaram, em suas médias, de 1 e 14 dias:G1A (0,269 a 0,204); G2A (0,394 a 0,038); G3A(0,080 a 0,123). Foi estatisticamente significante a relação entre os subgrupos para G1 em T1 e G3 emT1 e T14. Conclusão: a exposição ao creme dental acidulado influenciou positivamente a liberação de flúor do CIV híbrido testado e não impactou a liberação deste íon nos CIVs convencionais.

Objectives: To evaluate the acidulated dentifrice influence on fluoride releasing from glass-ionomercements. Methods: 27 specimens were constructed,divided into 3 groups: G1 (Maxion - R), G2 (KetacMolar 3M/ESPE) and G3 (Vittremer 3M/ESPE), and subdivided into 3 subgroups (n = 3): A (exposure to acidulated fluoride dentifrice – pH 4.5 / 7h /37 ºC), B (exposure to non-acidulated fluoridedentifrice / 7h / 37 ºC), C (control - exposure toartificial saliva). After exposing, the specimens were immersed into artificial saliva and the fluoridere leasing measured at the following time periods:1 to 14 days. Data were subjected to analysis ofvariance using the Statistical Package for Social Science (SPSS). ANOVA test was applied with levelof significance of 5% to compare the means and the behavior of each material. Results: The exposure to acidulated dentifrice showed fluoride releasing means values (ppm/mm2) that varied from 1 and 14days : G1A (0.269 to 0.204); G2A (0.394 to 0.038);G3A (0.080 to 0.123). The relationship among the G1 subgroups at T1 and G3 subgroups at T1and T14 was statistically significant. Conclusion:The acidulated dentifrice positively influenced onfluoride releasing of hybrid GIC but not on that ofconventional GICs.

The influence of storage time and pH variation on water sorption by different composite resins.

OBJECTIVE: The objective of this work was to assess the influence of storage time and pH cycling on water sorption by different composite resins. MATERIALS AND METHODS: Nine resin brands were selected and divided into groups: G1-ROK (SDI), G2-ICE (SDI), G3-GLACIER (SDI), G4-Z350 (3M/ESPE), G5-Z250 (3M/ESPE), G6-TPH 3 (DENTSPLY), G7-ESTHET X (DENTSPLY), G8-SUPRAFILL (SSWHITE), and G9-MASTERFILL (BIODINΒMICS). Ninety specimens, ten per group, were obtained using an aluminum matrix. Specimens measured 10 mm diameter × 2 mm width. The groups were divided into subgroups according to the immersion solution: A - control (n = 05) stored in artificial saliva pH = 7.0 and B-test (n = 05) submitted to seven consecutive days of pH cycling (cariogenic challenger) that consisted of immersion in a pH° = 4.3 solution for 6 h followed by immersion in a pH¹ =7.0 solution for 18 h and stored in artificial saliva pH = 7.0 until the end of the experiment. The specimens were weighed on six occasions: T 0 (after fabrication), T 1 (24 h), T 2 (7 days), T 3 (15 days), T 4 (30 days), T 5 (60 days), and then analyzed. The water sorption was determined by the weight difference between the specimens at the time intervals. RESULTS: The mean weight gain was exactly the same for both the subgroups within group G4. The highest means for the control subgroup were found in groups: G1, G5, G7, G8, and G9. For the pH cycling subgroup, the highest means were found in G2, G3, and G6; however, significant differences between the subgroups compared to the mean-weight gain were found for G1, G5, and G7. CONCLUSION: The water sorption of composite resins is dependent upon their storage time. The pH cycling created a significant impact on resins G1, G5, and G7. The sorption and solubility of composite resins vary according to their chemical composition.

Onlay com resina composta direta: Relato de caso Clínico / Onlay with direct composite resin: a case report

Com o crescente apelo estético da sociedade, um dos principais procedimentos realizados pelos cirurgiões-dentistas consiste na troca de restaurações de amálgama de prata, de elementos posteriores, por materiais que agreguem resistência mecânica e propriedades ópticas semelhantes à estrutura dental sadia. Para reabilitar elementos dentais extensamente comprometidos, muitas vezes necessitamos indicar procedimentos indiretos, e, para isso, dispomos de cerômeros e cerâmicas, embora tal alternativa não se apresente viável para a grande parcela da população, tendo em vista ser de alto custo. O presente trabalho tem por objetivo abordar a utilização de resinas compostas como alternativa para a confecção de restauração do tipo onlay por meio de uma breve revisão de literatura e de um relato de um caso clínico realizado na Clínica de Dentística 2 da UFPE.

With the society's increasing aesthetic appeal, the amalgam restoration changes from posterior teeth with materials that add strength and optical properties similar to the healthy tooth structure has been one of the most performed procedures by dentists. To rehabilitate dental elements widely compromised, we often need to indicate indirect procedures, and, for that kind of necessity, we have ceromers and ceramics. However, because of its high cost, this alternative is not viable for most people. The aim of this study is to address the use of composite resins as an alternative to these onlay restorations, through a brief literature review and clinical case report at the Clinic of Dentistry 2, UFPE.

Manifestações orais e maxilofaciais secundárias à bulimia nervosa: uma revisão sistemática / Oral and maxillofacial manifestations secondary to bulimia nervosa: a systematic review

Introdução: A bulimia nervosa é um tipo de transtorno alimentar (fortemente associado à questão do padrão de beleza corporal contemporâneo) que atinge cerca de 1 a 2% da população, com maior prevalência no gênero feminino, apresentando uma gama de alterações importantes e características que acometem a região oral e maxilofacial.Objetivo: Realizar uma revisão da literatura a cerca das publicações sobre as manifestações bucomaxilofaciais secundárias à bulimia nervosa, demonstrando as alterações mais comuns e alertando o cirurgião-dentista para o diagnóstico precoce da doença. Método: 54 artigos científicos indexados (Medline, Lilacs, Scielo e Ibecs) sobre: bulimia nervosa, odontologia, erosão dentária e saúde bucal, entre 2005 e 2010, sofreram leitura crítica para aquisição de informações contidas de interesse ao estudo. Os artigos poderiam ser de revisão da literatura, relato de caso, série de casos ou pesquisa clínica. Foram excluídos aqueles artigos que não discorreram nem citaram pelo menos uma manifestação maxilofacial secundária a bulimia nervosa. Os resultados foram tabulados e estatisticamente tratados de forma descritiva. Resultados: Com base nos critérios de inclusão e exclusão, 31 artigos que falavam especificamente a cerca das manifestações bucomaxilofaciais secundárias à bulimia nervosa foram selecionados. Pôde-se notar um elevado número de publicações envolvendo revisões de literatura em comparação às pesquisas clínicas. O perfil epidemiológico dos pacientes revelou as mulheres adultas jovens como grupo de risco, associado às mais prevalentes manifestações como: erosão e sensibilidade dental, aumento no índice de cárie, mucosite, queilite e gengivite. Conclusão: As manifestações bucomaxilofaciais secundárias à bulimia nervosa podem acometer em graus variados as estruturas duras e moles desta região anatômica. Dentre todas as alterações, a erosão dental foi a mais prevalente em tecido duro e a mucosite em tecido mole.

Introduction:Bulimia nervosa is an eating disorder (strongly associated with the contemporary beauty standard body) that affects about 1 to 2% of the population, often female and aged younger. This disorder induces several important changes in the oral and maxillofacial region. Objective: To review the literature about the oral and maxillofacial manifestations secondary to bulimia nervosa, showing the most common changes and alerting the dentist to early diagnose. Method: 54 scientific articles indexed (Medline, Lilacs, Scielo and Ibecs) about: bulimia nervosa, dentistry, dental erosion and oral health, between 2005 and 2010, suffered critical analysis to acquire interest information for the study. The articles could be review, case report, case series and clinical research. Those article that didn't cite at least one oral or maxillofacial manifestation secondary to bulimia nervosa were excluded. The results were tabulated and statistically treated descriptively. Results: According to inclusion and exclusion criteria, 31 articles about oral and maxillofacial manifestations secondary to bulimia nervosa were selected, and the most publications were literature review. The epidemiological profile showed that the young adult women are a risk group. Erosion and tooth sensitivity, increase rates caries, mucositis, cheilitis and gingivitis were more prevalent clinical manifestations. Conclusion: Oral and maxillofacial manifestations secondary to bulimia nervosa may involve hard and soft structures of this anatomical region. Of all the changes, the dental erosion was more prevalent in the hard tissue and mucositis was more prevalent in the soft tissue.

Perfil dos discentes ingressos do Centro de Ciências da Saúde UFPE / Profile of enrolled students at the Center for Health Sciences at UFPE

A busca pelo conhecimento das características e da opinião dos estudantes do nível superior fornece importantes subsídios para o planejamento e reorganização do desenvolvimento acadêmico. Com o objetivo de traçar o perfil do aluno do Centro de Ciências da Saúde da Universidade Federal de Pernambuco (UFPE), foram distribuídos formulários aos acadêmicos do 2º período, contendo perguntas referentes aos seus aspectos socioeconômicos e pessoais. O perfil dos estudantes (n = 210) caracterizou-se por um predomínio feminino, com idades entre 19 e 21 anos, provenientes de escolas privadas e classes sociais economicamente mais favorecidas, que receberam grande influência do núcleo familiar na escolha da profissão. A maioria dos estudantes não estava matriculada nos cursos de primeira opção, porém possuía alta expectativa com relação ao curso, considerando-o correspondente às suas expectativas. Após formados pretendem realizar algum curso de pós-graduação e trabalhar no serviço público. No entanto, persiste um problema relativo à escolha da profissão, regulada pela condição socioeconômica e influência familiar.

Carrying out surveys that attempt to understand the characteristics and opinions of students at university level may provide important information for planning and reorganizing academic development. In order to profile the students of the Center for Health Sciences, at the Federal University of Pernambuco, questionnaires were distributed to the academics in the second term of the course, containing questions regarding their socio-economic and personal aspects. The profile of students (n = 210) was characterized by a predominance of females, aged between 19 and 21 years, who had been to private schools, were from the most economically advantaged social classes, and had been greatly influenced by their family regarding career choice. Most students were not enrolled in the courses they had chosen as their first option, but had high expectations about the course, and considered that the course met their expectations. After finishing the course, most students intend to take a postgraduate course and work in public service. One problem that remains concerning the choice of the profession, is that it might be determined by socio-economic status and family influence.

Sentir o sorriso: uma experiência de promoção de saúde bucal com um grupo de deficientes visuais em Recife / Feel the smile: an experience of promotion of oral health with a visually impaired group in Recife

Objetivos: Este artigo objetiva relatar a experiência inclusiva do projeto de extensão Sentir o sorriso, vivenciada por uma equipe do Curso de Graduação em Odontologia da Universidade Federal de Pernambuco, objetivando oportunizar aos deficientes visuais de uma ONG da cidade do Recife/PE a conhecerem a sua saúde bucal, a anatomia e as principais patologias que acometem a cavidade oral (cárie dentária, doença periodontal, maloclusão e câncer de boca). Materiais e Métodos: Foram realizadas ações de promoção de saúde bucal por meio de práticas preventivas e educativas com modelos texturizados, confeccionados para a exploração da capacidade sensorial tátil desses indivíduos. Resultados: Capacitaram-se os deficientes visuais para o controle de sua saúde bucal. Conclusões: As oficinas e palestras permitiram a percepção e o conhecimento das estruturas anatômicas e das principais patologias bucais por parte dos deficientes visuais, além de propiciar aos estudantes de Odontologia participantes a adequação para o ensinamento de técnicas de higiene bucal e autoexame da boca para esse grupo de indivíduos.

Objectives: This article aims to report the inclusive experience of the extension project Feeling the Smile, performed by a group of students of the graduation in Dentistry, of the Federal University of Pernambuco, which had the intention to create opportunities for visually impaired people from an ONG in Recife-PE to understand their oral health, anatomy and major pathologies that affect the oral cavity (dental caries, periodontal disease, malocclusion and oral cancer). Methods: Were carried out actions to promote oral health through preventive and educational practices with textured models, which were made to explore the tactile sensory ability of these individuals. Results: Enabled if the visually impaired for control of your oral health. Conclusions: Thus, the workshops and lectures led to the perception and knowledge of anatomical structures and major oral pathologies by the visually impaired, besides giving the participating dental students suitability for the teaching of oral hygiene techniques and self-examination of the mouth for this group of individuals.