Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/16449
Tipo do documento: Artigo
Título: Identification of apical and cervical curvature radius of human molars
Autor: Estrela, Carlos
Bueno, Mike dos Reis
Barletta, Fernando Branco
Guedes, Orlando Aguirre
Porto, Olavo Cesar Lyra
Estrela, Cyntia Rodrigues de Araújo
Pecora, Jesus Djalma
Abstract: To determine the frequency of apical and cervical curvatures in human molars using the radius method and cone-beam computed tomography (CBCT) images. Four hundred images of mandibular and maxillary first and second molars were selected from a database of CBCT exams. The radius of curvature of curved root canals was measured using a circumcenter based on three mathematical points. Radii were classified according to the following scores: 0 - straight line; 1 - large radius (r>8 mm, mild curvature); 2 - intermediate radius (r>4 and r<8 mm, moderate curvature); and 3 - small radius (r≤4 mm, severe curvature). The frequency of curved root canals was analyzed according to root canal, root thirds, and coronal and sagittal planes, and assessed using the chi-square test (significance at α=0.05). Of the 1,200 evaluated root canals, 92.75% presented curved root canals in the apical third and 73.25% in the cervical third on coronal plane images; sagittal plane analysis yielded 89.75% of curved canals in the apical third and 77% in the cervical third. Root canals with a large radius were significantly more frequent when compared with the other categories, regardless of root third or plane. Most root canals of maxillary and mandibular first and second molars showed some degree of curvature in the apical and cervical thirds, regardless of the analyzed plane (coronal or sagittal).
Palavras-chave: Root canal anatomy
Cone-beam computed tomography
Curvature radius
Root canal preparation
Root canal curvature
País: Brasil
Unidade acadêmica: Faculdade de Odontologia - FO (RG)
Citação: ESTRELA, Carlos et al. Identification of apical and cervical curvature radius of human molars. Brazilian Dental Journal, Ribeirão Preto, v. 26, n. 4, p. 351-356, 2015.
Tipo de acesso: Acesso Aberto
Identificador do documento: 10.1590/0103-64402013x0252
Identificador do documento: 10.1590/0103-64402013x0252
URI: http://repositorio.bc.ufg.br/handle/ri/16449
Data de publicação: 2015
Aparece nas coleções:FM - Artigos publicados em periódicos

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