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Métodos de localização do segundo canal mesiovestibular do primeiro molar maxilar: revisão narrativa
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Abstract(s)
O conhecimento da morfologia dos canais radiculares e suas frequentes variações é um requisito fundamental para o tratamento endodôntico. É geralmente admitido que a principal causa de falha do tratamento endodôntico é a incapacidade de reconhecer e consequentemente tratar adequadamente todos os canais radiculares do dente.
A raiz mesiovestibular do primeiro molar maxilar tem gerado mais pesquisa e investigação do que qualquer outra raiz. Entretanto, há uma falta de uniformidade na literatura relativamente à abordagem do segundo canal mesiovestibular que está presente em 73% dos casos.
A falta de tratamento do segundo canal mesiovestibular reduz o prognóstico para o tratamento endodôntico a longo prazo. Assim é frequentemente esquecido durante os procedimentos de rotina pelo facto de ser difícil localizá-lo sem ajuda.
Esta dissertação tem como objetivo principal efetuar uma revisão da literatura científica existente sobre os dispositivos de localização do segundo canal mesiovestibular, começando pela radiologia convencional e em seguida pela imagem tridimensional, que parece ser uma ferramenta confiável para explorar a anatomia dos canais radiculares, assim como os métodos e técnicas clinicas que facilitam a sua localização durante a prática.
Desde modo, pode concluir-se que existem vários métodos de localização do segundo canal mesiovestibular que o Médico Dentista deve conhecer para executar o tratamento endodôntico do primeiro molar maxilar nas melhores condições possíveis, a fim de evitar a re-contaminação bacteriana e assim o fracasso do tratamento.
Knowledge of root canal morphology and its frequent variations is a fundamental requirement for endodontic treatment. It is generally accepted that the main cause of failure of endodontic treatment is the inability to recognize and consequently adequately treat all root canals of the tooth. The mesiobuccal root of the first maxillary molar has generated more research and investigation than any other root. However, there is a lack of uniformity in the literature regarding the approach to the second mesiobuccal canal, wich is presente in 73% of cases. The lack of treatment of the second mesiobuccal canal reduces the prognosis for longterm endodontic treatment. It is often forgotten during routine procedures because it is difficult to locate it without help. The main objective of this dissertation is to review the existing scientific literature on the localization devices of the second mesiobuccal canal, starting with conventional radiology and then with three-dimensional imaging, which seems to be a reliable tool for exploring the anatomy of root canals, as well as the clinical methods and techniques that facilitate their location during practice. Therefore, it can be concluded that there are several methods of locating the second mesiobuccal canal that the dental surgeon should know to execute the endodontic treatment of the first maxillary molar in the best possible conditions, in order to avoid bacterial re-contamination and thus treatment failure.
Knowledge of root canal morphology and its frequent variations is a fundamental requirement for endodontic treatment. It is generally accepted that the main cause of failure of endodontic treatment is the inability to recognize and consequently adequately treat all root canals of the tooth. The mesiobuccal root of the first maxillary molar has generated more research and investigation than any other root. However, there is a lack of uniformity in the literature regarding the approach to the second mesiobuccal canal, wich is presente in 73% of cases. The lack of treatment of the second mesiobuccal canal reduces the prognosis for longterm endodontic treatment. It is often forgotten during routine procedures because it is difficult to locate it without help. The main objective of this dissertation is to review the existing scientific literature on the localization devices of the second mesiobuccal canal, starting with conventional radiology and then with three-dimensional imaging, which seems to be a reliable tool for exploring the anatomy of root canals, as well as the clinical methods and techniques that facilitate their location during practice. Therefore, it can be concluded that there are several methods of locating the second mesiobuccal canal that the dental surgeon should know to execute the endodontic treatment of the first maxillary molar in the best possible conditions, in order to avoid bacterial re-contamination and thus treatment failure.
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Keywords
Primeiro molar maxilar Segundo canal mesiovestibular Tomografia computorizada de feixe cônico Magnificação Microscópio operatório dentário Método do corante Morfologia Maxillary first molar Second mesiobuccal canal Cone beam computed tomography Magnification Dental operating microscope Dye method Morphology