ResumoIntrodução: A reabilitação oral de pacientes com atrofia óssea maxilar representa um grande desafio por estes pacientes apresentarem comprometimento da qualidade de vida, dificuldades alimentares, complicações nutricionais, dificuldades sociais e emocionais. Propostas de reabilitações de maxilas mutiladas e/ou atróficas com próteses totais fixas implantossuportadas, utilizando implantes zigomáticos, foram relatadas. Objetivo: O objetivo deste estudo foi avaliar o grau de satisfação dos pacientes reabilitados com implantes zigomáticos e convencionais, em função de carga imediata com prótese do tipo protocolo através de um estudo retrospectivo, por meio de questionário respondido pelos pacientes. Material e método: Foram incluídos dezenove pacientes, tratados na clínica do Instituto Latino Americano de Pesquisa e Ensino Odontológico (ILAPEO) em Curitiba, PR (Brasil), entre dezembro de 2005 e junho de 2010. Os pacientes foram reabilitados com 41 implantes zigomáticos e 73 implantes convencionais, todos do tipo cone Morse. As próteses, tipo híbridas, foram instaladas em carga imediata. Resultado: O índice de satisfação encontrado foi de 100%. Conclusão: Pode-se concluir que esta técnica de reabilitação restabelece fatores primordiais ao ser humano como mastigação, fonética e estética. Os pacientes relataram satisfação com o resultado do tratamento, conseguindo desenvolver atividades sociais dentro da normalidade, elevando sua autoestima.Descritores: Implante dentário; arcada edêntula; zigoma. AbstractIntroduction: Rehabilitation of patients with atrophic maxilla is challenging. Atrophic maxilla patients present compromised quality of life, impaired function, deficient nutrition, social and emotional difficulties. The rehabilitation of atrophic maxilla by zygomatic fixtures has been previously proposed. Objective: This retrospective study evaluated the degree of satisfaction of patients rehabilitated by immediately loaded conventional and zygomatic fixtures supporting full-arch fixed dental prosthesis. A satisfaction questionnaire was used for patient assessment. Material and method: Nineteen patients treated at the Latin American Institute for Dental Research and Education (ILAPEO) between December 2005 and June 2010 were evaluated. Patients were rehabilitated with 41 zygomatic implants and 73 conventional implants under immediate load. Result: All assessed patients were completely satisfied with the provided rehabilitation. Conclusion: It can be concluded that rehabilitation with zygomatic fixtures is capable of restoring function, phonetics, and esthetic for patients with atrophic maxilla. The patients were satisfied with the treatment outcomes and showed increased self-esteem after the rehabilitation.

Objectives: the aim of this study was to provide a retrospective clinical evaluation of direct composite veneers performed with microfilled or universal composites, through two evaluation criteria (FDI and USPHS). Materials and methods: patients should be in compliance with the inclusion criteria: having a composite veneer in anterior teeth made either with microfilled or universal using composites (microhybrid/nanohybrid), conventional dentin-bonding agents and for a minimum of 6 months period in service. A calibrated blind examiner assessed the veneers using the FDI and USPHS criteria and the results were subjected to statistical analysis by the Mann-Whitney test (p<0.05). Results: Twenty-eight patients (mean age 42.9 year-old) and seventy-four composite veneers were examined. The mean period of time in service was three years, with periods varying from six months up to ten years. Three cases of total failure (veneers lost, universal composites group) occurred in the surveyed patients, out of 17 failures in total. In general, the veneers showed a clinical satisfactory outcome (77% survival rate). Concerning the two composite types, better clinical performance was observed for microfilled in relation to surface luster, surface staining, colour match and marginal adaptation. Conclusion: In this interim evaluation, direct composite veneers demonstrated an acceptable clinical behavior. Microfilled composite veneers showed a better performance compared to universal composites. The two criteria (USPHS and FDI) were similar in the clinical evaluation process. Clinical relevance: direct composite veneers have a good clinical performance, microfilled composites are interesting options regarding esthetic properties.

Resinas Compostas; Restauração Dentária Permanente; Estudos Retrospectivos.

Objetivo: proceder a uma avaliação clínica retrospectiva de restaurações diretas de resinas compostas cervicais (classe V) realizadas na Faculdade de

AIM: The aim of this study was to evaluate two composite restorations (conventional methacrylate-based and low shrinkage-based silorane), associated or not to beveling and incremental technique, in relation to the microleakage and marginal gap formation tests. MATERIAL AND METHODS: 30 sound human molars had their mesial and distal surfaces prepared with and without bevel. The teeth were divided into six groups according to the type of resin (conventional nanofilled or silorane resin), and restorative filling technique (incremental technique or builk). Microleakage and marginal gap formation data were statistically analyzed by Kruskal-Wallis and Chi-Square tests, with a significance level set at 5%. RESULTS: Group 1 (Z350 XT, without bevel, incremental technique) presented highest rate of microleakage and marginal gap in most of the restorations, with statistically significant differences. Groups 4 and 6 (P90, beveled, builk and P90, beveled and incremental technique) had lower rates of microleakage and absence of marginal gaps in most of the restorations. CONCLUSION: It’s concluded that the silorane showed lower rates of marginal gaps and microleakage, when compared to the conventional methacrylate-based resin. Bevel preparation was effective in reducing microleakage and marginal gaps for both resins used. Incremental technique was not necessary when associated with low shrinkage composite resin.