Tooth Fractures
Mostrando 25-31 de 31 artigos, teses e dissertações.
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25. Evaluation of the fracture strength of endodontically treated teeth, reconstructed with post and cores, when submitted to the dynamic loading / Avaliação da resistência à fratura de dentes endodonticamente tratados, reconstituídos com pinos intra-radiculares, quando submetidos à ciclagem dinâmica
In this study, was evaluated the strength of endodontically treated teeth, had been reconstructed with a crown of NiCr alloy (Verabond II), which was supported by a post and core for different materials, gotten for different techniques, cemented in the root with the glass ionomer Rely X Lutting 2, which is increased of composed resin. These diferents post an
Publicado em: 2007
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26. Biomechanics analysis of restored teeth with cast intra-radicular retainer, with and without ferrule / Análise biomecânica de dentes restaurados com retentor intra-radicular fundido, com e sem férula
The aim was to evaluate the influence of variations in the radicular ferrule format given by the casing core on stress developed in the root in a three-dimensional model of one upper second premolar submitted to four load conditions: wedge, vestibular lever, proximal lever and torsion. Six models were built according the average dimensions obtained from the
Publicado em: 2007
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27. Comparative study between 3D computed tomography, orthopantomography and periapical radiography for diagnosis of periapical lesions, root fractures and tooth resorptions / Estudo comparativo entre as tomografias computadorizadas 3D, ortopantomográficas e radiografias periapicais no diagnóstico de lesões periapicais, fraturas radiculares e reabsorções dentais
O pilar do sucesso do tratamento endodôntico é o diagnóstico e, para esse objetivo, a radiografia é um excelente recurso auxiliar, tanto pelo seu custo, como pela facilidade de obtenção. Contudo, ela tem suas limitações, pois trata-se da imagem bidimensional de um objeto tridimensional e daí a dificuldade encontrada no diagnóstico de lesões periap
Publicado em: 2007
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28. Colagem de fragmentos em dentes anteriores fraturados : efeito de materiais e tecnicas na resistencia ao impacto / Reattachment of fragments in fractured anterior teeth : effect of materials and techniques on impact strength
O objetivo desse estudo foi avaliar in vitro o efeito de diferentes materiais e técnicas de colagem de fragmentos na resistência ao impacto de dentes anteriores, comparando-a com a resistência à fratura dos dentes hígidos. Para isso, foram selecionados 90 incisivos inferiores bovinos recém-extraídos, com dimensões da coroa de aproximadamente 15 mm de
Publicado em: 2007
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29. Osteopatologias e alterações dentárias em Otaria byronia (Pinnipedia, Otariidae) da costa do Rio Grande do Sul, Brasil
Bone diseases and tooth alterations in 47 specimens of Otaria byronia (Blainville, 1820), from southern Brazilian coast, were analized. Tooth wear and the associated bone pathologies were determined, as well as their percentuals. The main infection was osteomyelitis associated with tooth alterations, such as fractures and attrition, both of them exposing the
Iheringia. Série Zoologia. Publicado em: 2004-06
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30. Influência da configuração do preparo cavitário na resistência à fratura e adaptação marginal de restaurações indiretas em cerômero
The aim of this study was to evaluate the influence of cavity preparation design on marginal adaptation and fracture resistance of indirect ceromer restorations. Ninety human mandibular molars with similar dimensions were divided into 9 groups. The teeth roots were embedded in a polystyrene resin reproducing the periodontal ligament. The control group had on
Publicado em: 2004
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31. Diagnosis and management of common maxillofacial injuries in the emergency department. Part 5: dentoalveolar injuries
Injuries to teeth can be very distressing for patients. Prompt treatment is essential. Injuries of the tooth bearing portion of the mandible are common and can even result after a relatively low impact trauma. The alveolus (tooth bearing portion of bone) and/or the tooth may be damaged. Segmental fractures involve multiple teeth and the supporting alveolar b
BMJ Group.