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Revista Portuguesa de Estomatologia, Medicina Dentária e Cirurgia Maxilofacial
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Vol. 52. Issue 2.
Pages 89-97 (April - June 2011)
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Vol. 52. Issue 2.
Pages 89-97 (April - June 2011)
Open Access
Recobrimento total de cúspides com amálgama de prata em dentes com tratamento endodôntico – caso clínico
Complete cusp coverage with silver amalgam on teeth with endodontic treatment – case report
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João Pedro Cantaa,
Corresponding author
jpcanta@gmail.com

Autor para correspondencia.
, Jorge N.R. Martinsb, Ana Coelhoc
a Licenciatura em Medicina Dentária pela Universidade do Porto, Mestrado Integrado em Medicina Dentária pela Universidade de Lisboa, Pós-Graduado em Reabilitação Oral pela New York University, Assistente convidado da Especialização de Implantologia da FMDUL
b Licenciatura em Medicina Dentária pela Universidade de Lisboa, Pós-Graduado Endodontia pela New York University, Membro acreditado pela European Society of Endodontology
c Licenciatura em Medicina Dentária pela Universidade de Lisboa, Mestrado em Odontopediatria pela Universidade de Barcelona, Doutorando em Medicina Dentária pela Universidade de Lisboa, Assistente convidada de Odontopediatria da FMDUL
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Resumo

O prognóstico de um dente tratado endodonticamente está dependente tanto do sucesso da endodontia como da respectiva reabilitação coronária. A microinfiltração coronária e as fracturas coronárias ou corono-radiculares são duas complicações relacionadas com a reabilitação que podem comprometer o sucesso do tratamento endodôntico. Alguns factores como a redução da resistência à fractura, a deflexão cuspídea, a desidratação da dentina, a perda das ligações de colagénio da dentina e as alterações fisiológicas da dentina devido ao envelhecimento podem levar a uma maior predisposição à fractura e à microinfiltração. O reforço da estrutura dentária remanescente pode ser realizado através do recobrimento cuspídeo. A restauração em amálgama com recobrimento de cúspides (coroa de amálgama) é apresentada como um tipo de restauração directa que permite reforçar a estrutura dentária de um dente tratado endodonticamente.

Palavras-chave:
Coroa de amálgama
Restaurações complexas
Reforço de estrutura dentária
Tratamento endodôntico
Abstract

The prognosis of a root canal treated tooth depends not only from the success of the endodontic treatment but also from the correct coronal rehabilitation. The coronal microleakage and the coronal and coronal-root fracture are two complications related to rehabilitation that may jeopardize the outcome of the root canal treated teeth. Factors such as reduction of tooth stiffness, cuspal deflection, dentine moisture reduction, loss of dentine collagen crosslinks and dentine physiological age changes may increase the susceptibility to fracture and microleakage. Most of the times the reinforcement of the remaining tooth structure may be achieved with complete cusp coverage. The amalgam onlay (amalgam crown) is presented as a kind of direct restoration capable of reinforce the dentine tooth strength of a root canal treated tooth.

Keywords:
Amalgam crown
Complex restorations
Tooth structure reinforcement
Root canal endodontic treatment
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Copyright © 2011. Sociedade Portuguesa de Estomatologia e Medicina Dentária
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