Oclusão em prótese sobre implante - parte II

In part I of this article, the factors related to the establishment of a favourable occlusion for the implant prosthodontics as well as its real importance in this kind of rehabilitation were showed up. However, it is known that the occlusal characteristics adopted in implant prosthodontics show specific patterns which must be different between each other in accordance to the type of prosthesis installed. The objective of the second part of this work is to present to the reader, by a literature review, those characteristics, justifying the reason because they must be associated to specific kind of prosthesis for favor the treatment established.

Prótese de palato em sujeitos com disfunção velofaríngea: expectativa e ansiedade

Cleft lip and palate (CLL) is a very common craniofacial anomaly. The cleft is usually corrected with surgery which may fail resulting in velopharyngeal dysfunction (VPD). The use of palatal prosthesis is an alternative treatment for correcting both, CLP and VPD. This study evaluated anxiety symptoms expectations of subjects of both genders, with velopharyngeal dysfunction, referred to palatal prosthesis program for VPD treatment. In this cross sectional and descriptive study 30 subjects with velopharyngeal dysfunction, aged 15 to 64 years old (mean age of 28) were interviewed at the Hospital for Rehabilitation of Craniofacial Anomalies (HRAC). All subjects referred to the palatal prosthesis program at HRAC in the year of 2005 were considered for participation in the study but only the first 30 candidates were included. A questionnaire addressing expectation elaborated by the researcher and the Beck Scale on anxiety were used. All subjects showed expectation regarding speech modification. Changes in professional and affective aspects of their lives after changes in speech were obtained with palatal prosthesis were the most reported expectations. Subjects’ age and gender influenced anxiety levels significantly which were minimum across subjects. High levels of expectation were more frequent than anxiety in the sample population.

Avaliação do uso de uma estrutura de nylon modificada como reforço de prótese totalmente acrílica implantossuportada

Pós-graduação em Odontologia Restauradora - ICT

Estudo clínico randomizado do movimento da prótese total superior durante a mastigação em usuários de overdentures mandibulares retidas por um ou dois implantes

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)

Influência da incorporação de nanofibras de poliamida 6 com e sem nanotubos de carbono como reforço de prótese parcial fixa adesiva

The aim of this study was to evaluate the behavior of reinforced composites with polyamide 6 fibers aligned (6000 rpm) and alignment (120 rpm) with or without CNT using the flexural strength test. After preparation of nanofibers aligned nylon 6 (6000 rpm) and alignment (120 rpm) with and without incorporation of nanotube carbon by the method of electrospinning, were performed one control group (n = 10) and 4 experimental groups (n = 40) G1: Control (just resin Charisma - Heraeus Kulzer) ;G2 Resin + N6 aligned (6000 rpm) + CNT; G3:Resin + N6 alignment (120 rpm) + CNT; G4: Resin + aligned ( 6000 rpm) N6. G5: Resin + N6 alignment (120 rpm). The fibers were cut to the dimensions of 0,3 x 15 mm and were applied an adhesive at the surface (Single Bond 2) for 5 min and cured. In the matrix, was added resin in the proximal box (Charisma A2, Heraeus Kulzer) and cured for 40 s. (power 1100 mW / cm²). A first layer of resin and on the resin was deposited. The resin layers specimens were light irradiated with three overlapping exposures delivered. For each resin layer were light irradiated for 40 sec. The samples were tested with a cross-speed of 1 mm / min, and a 50 Kgf at Universal testing machine (EMIC mod.DL2000). The Dunnet test showed that only the nanotube group was significantly different from the control group. The ANOVA two-way indicates that the nanotube factor was statistically significant (p < 0.05) and there is no interaction between factors and orientation nanotube. The presence of nanotube showed lower fracture resistance values for aligned and unaligned groups. The results of this study showed that the orientation of the fibers does not influence the strength of composite resins and the incorporation of nylon nanofibers with carbon nanotubes decreased the fracture resistance values. The presence of the fibers has not been able to improve the strength of the material in any of the...

Influência da incorporação de nanofibras de poliamida 6 com e sem nanotubos de carbono como reforço de prótese parcial fixa adesiva

The aim of this study was to evaluate the behavior of reinforced composites with polyamide 6 fibers aligned (6000 rpm) and alignment (120 rpm) with or without CNT using the flexural strength test. After preparation of nanofibers aligned nylon 6 (6000 rpm) and alignment (120 rpm) with and without incorporation of nanotube carbon by the method of electrospinning, were performed one control group (n = 10) and 4 experimental groups (n = 40) G1: Control (just resin Charisma - Heraeus Kulzer) ;G2 Resin + N6 aligned (6000 rpm) + CNT; G3:Resin + N6 alignment (120 rpm) + CNT; G4: Resin + aligned ( 6000 rpm) N6. G5: Resin + N6 alignment (120 rpm). The fibers were cut to the dimensions of 0,3 x 15 mm and were applied an adhesive at the surface (Single Bond 2) for 5 min and cured. In the matrix, was added resin in the proximal box (Charisma A2, Heraeus Kulzer) and cured for 40 s. (power 1100 mW / cm²). A first layer of resin and on the resin was deposited. The resin layers specimens were light irradiated with three overlapping exposures delivered. For each resin layer were light irradiated for 40 sec. The samples were tested with a cross-speed of 1 mm / min, and a 50 Kgf at Universal testing machine (EMIC mod.DL2000). The Dunnet test showed that only the nanotube group was significantly different from the control group. The ANOVA two-way indicates that the nanotube factor was statistically significant (p < 0.05) and there is no interaction between factors and orientation nanotube. The presence of nanotube showed lower fracture resistance values for aligned and unaligned groups. The results of this study showed that the orientation of the fibers does not influence the strength of composite resins and the incorporation of nylon nanofibers with carbon nanotubes decreased the fracture resistance values. The presence of the fibers has not been able to improve the strength of the material in any of the...

Surdez pós-lingual: benefícios do implante coclear versus prótese auditiva convencional

Devido aos avanços na tecnologia dos implantes cocleares e das estratégias de processamento, indivíduos com surdez grave a profunda puderam ouvir sons e reconhecer fala em diferentes graus. A variabilidade nos resultados audiológicos em portadores de surdez pós-lingual tem sido grande e a indicação para o implante coclear tem se estendido e inclui uma população cada vez maior. OBJETIVO: Avaliar em quais pacientes portadores de surdez pós-lingual o implante coclear traz benefício auditivo superior ao da prótese auditiva convencional. MATERIAIS E MÉTODOS: consulta a artigos científicos por busca no banco de dados SciELO, Cochrane, MEDLINE e LILACS-BIREME. Foram selecionadas publicações com força de evidência A ou B até a data da investigação, que comparassem aparelhos de amplificação sonora e implante coclear na população com surdez pós-lingual. Desenho do Estudo: revisão sistemática. RESULTADOS: Entre os 2169 artigos consultados, 11 trabalhos se mostram pertinentes ao tema e apresentaram força de evidência B. Seis estudos são do tipo coorte prospectivo, quatro são estudos transversais e um ensaio clinico. CONCLUSÃO: A avaliação dos benefícios obtidos por portadores de surdez pós-lingual reabilitados com o uso de implante coclear mostra que este dispositivo é efetivo e apresenta melhores resultados quando comparado aos aparelhos de amplificação sonora individual.

Surdez pré-lingual: benefícios do implante coclear versus prótese auditiva convencional

INTRODUÇÃO: A maioria dos pacientes com perda auditiva, incluindo casos de perdas severas, é beneficiada com o uso de aparelho de amplificação sonora individual. Acredita-se que o implante coclear estabeleça melhores resultados na reabilitação de uma criança com perda auditiva nos casos em que a gravidade da deficiência torna os aparelhos acústicos convencionais incapazes de fornecer informação sonora adequada, já que estes necessitam de reserva coclear suficiente para que ocorra detecção acústica. OBJETIVO: Avaliar se em pacientes portadores de surdez pré-lingual o implante coclear traz benefício auditivo superior ao da prótese auditiva convencional. SÍNTESE DOS DADOS: Revisão sistemática realizada a partir de consulta a artigos científicos selecionados por busca no banco de dados SciELO, Cochrane, MEDLINE e LILACS-BIREME. Entre os 2169 artigos consultados, 12 trabalhos se mostram pertinentes ao tema e apresentaram força de evidência B. Entre os desenhos de estudos analisados na revisão, 7 são do tipo coorte prospectivo e 5 são estudos transversais. CONCLUSÃO: O implante coclear demonstrou, através de diversos estudos, ser atualmente, a melhor alternativa para os casos de perdas auditivas bilaterais severas ou profundas, atingindo resultados superiores em percepção e desenvolvimento de fala em crianças pré-linguais quando comparados aos aparelhos de amplificação sonora convencionais.

Rheumatic heart disease revisited: patterns of valvular involvement from a consecutive cohort in eastern Nepal

The burden of rheumatic heart disease (RHD) continues to be a major contributor to morbidity and premature death in poor and developing countries. We investigated patterns of valvular involvement in patients with RHD as observed in a large tertiary care hospital in eastern Nepal.