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BACKGROUND/AIM: School is a place with a high frequency of dental trauma, and several studies have shown that teachers' knowledge in how to act during acute dental emergencies is lacking. Therefore, this study aimed to assess the knowledge and actions of a group of Brazilian school teachers relative to dental trauma in permanent teeth. MATERIALS AND METHODS: A cross-sectional, observational study, from 27, schools randomized by lot was performed. All 205 teachers in the 27 schools answered a structured and self-administered questionnaire. The questionnaire contained questions about the participants' education level, work experience and first-aid training, as well as knowledge about and attitudes towards dental trauma in permanent teeth as well as their experience in dental emergency situations. RESULTS: Of the 205 teachers, 91.2% reported having no knowledge about dental trauma and 16.6% of teachers had seen cases of acute dental trauma. Among the 205 teachers, 23.9% had received first-aid training and 4.1% had been educated in dental trauma. Regarding actions of acute injuries to permanent teeth, the teachers showed a significant error rate. No association was found between the level of education and first-aid training or experience with dental trauma. In relation to the experience of the teacher, association was found when managing trauma to soft tissue. CONCLUSION: The knowledge and actions of Brazilian schoolteachers in relation to care of acute injuries in permanent teeth were inconsistent and based on unfounded concepts, beliefs and intuition, and lack of training. Continuing education of teachers in oral care due to a dental trauma should be a good plan of action.

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Avaliar a resistência flexural do In Ceram Zircônia em 20 corpos de prova, simulando uma prótese parcial fixa.Metodologia: foram utilizados 20 corpos de prova em forma de barra com as seguintes dimensões: 20mm de comprimento, 1,2mm de espessura e 4mm de largura e divididas em dois grupos: Grupo A - com distância do span de 12mm; e, Grupo B - com distância do span de 18mm, simulando respectivamente um e dois pônticos. As barras foram submetidas ao teste de carregamento de 3 pontos, análise fractográfica e microscópica eletrônica de varredura.Resultados: ANOVA, fator único não encontrou diferença estatística significante nos resultados da resistência flexural entre os grupos A e B, mas o resultado das tensões e a força de ruptura demonstraram o oposto.Conclusão: o aumento da distância entre os apoios não diminuiu a resistência flexural do material. Existe uma maior concentração de tensões quando se aumenta a distância entre os apoios, podendo representar uma tendência a ruptura para próteses com maior extensão...

This study evaluated the flexural strength of In Ceram Zirconia in 20 specimens, simulating a fixed partial denture.Methodology: a total of 20 specimens in the form of bar with the following dimensions: 20mm long, 1.2 mm thick and 4mm wide and divided into two groups: Group A with span distance of 12mm and Group B with span distance of 18mm, simulating one and two pontics respectively. Samples were submitted in loading test with three points, fractographic analysis and scanning electron microscopy.Results: ANOVA, single factor did not found significant statistically difference in the results of flexural strength between groups A and B, but the result of stress and rupture strength showed the opposite.Conclusion: increasing the distance between the supports did not reduce the flexural strength of the material. There is a higher stress concentration when the distance between the supports increases, this represent a tendency to break for prostheses with greater length...

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Grande parte dos pacientes que apresentam perdas dentárias bilaterais posteriores queixa-se da estética deficiente exibida pelas próteses parciais removíveis a grampo. O objetivo deste estudo foi demonstrar, através do relato de um caso clínico, a associação de prótese parcial removível (PPR) a próteses parciais fixas (PPF), através do uso de encaixes extra-coronários resilientes, como forma de se obter bom funcionamento do sistema mastigatório e proteção das estruturas envolvidas. Ao final do tratamento, o planejamento protético utilizado proporcionou à paciente o uso de uma prótese estética, confortável e estável.

Great part of the patients that presented posterior bilateral dental losses complains that the removable partial dentures retained by clasps have poor aesthetics. The aim of this study is to demonstrate, through the presentation of a clinic case, the association of removable partial dentures and fixed partial dentures as a way of obtain good masticatory function and protection of the involved structures. At the end of the treatment, the prosthetics planning selected for the case led the patient to the use of an aesthetic, comfortable and stable prosthesis.

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Grande parte dos pacientes que apresentam perdas dentárias bilaterais posteriores queixa-se da estética deficiente exibida pelas próteses parciais removíveis a grampo. O objetivo deste estudo foi demonstrar, através do relato de um caso clínico, a associação de prótese parcial removível (PPR) a próteses parciais fixas (PPF), utilizando-se encaixes extra-coronários resilientes, como forma de se obter funcionamento do sistema mastigatório e proteção das estruturas envolvidas. Ao final do tratamento, o planejamento protético utilizado proporcionou à paciente em questão o uso de uma prótese estética, confortável e estável.

Great part of the patients that presented posterior bilateral dental losses complains tha the removable partial dentures retained by clasps have poor aesthetics. The aim of this study is to demonstrated, through the case report, the association of removable partial dentures and fixed partial dentures, using resilient attachments, as a way of obtain good masticatory function and protection of the involved structures. At the end of the treatment, the prosthetics planning selected for the case led the patient to the use of an aesthetic, comfortable and stable prosthesis.

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