Utilize este identificador para citar ou criar um atalho para este documento: http://hdl.handle.net/10923/868
Tipo: article
Título: The anatomy of the root canal system of three-rooted maxillary premolars analysed using high-resolution computed tomography
Autor(es): Vier-Pelisser, Fabiana Vieira
Dummer, Paul M. H.
Bryant, S.
Marca, Caroline
Só, Marcus Vinicius Reis
Figueiredo, José Antônio Poli de
Editora: Blackwell Scientific Publications
Data de Publicação: 2010
Volume: 43
Número: 12
Página Inicial: 1122
Página Final: 1131
Palavras-chave: ANATOMIC VARIATIONS
HIGH-RESOLUTION COMPUTED TOMOGRAPHY
MAXILLARY FIRST PREMOLAR
TOMOGRAFIA COMPUTADORIZADA
ODONTOLOGIA
Resumo: AIM: To analyse the anatomy of the root canal system of maxillary premolars with three distinct roots using high-resolution computed tomography (μCT). METHODOLOGY: Ten three-rooted human maxillary premolars were scanned transversally from crown to apex at 42μm intervals using a high-resolution desktop μTC system (Skyscan 1072). The images were processed and analysed for the following features: cross section of the roots and canals in the apical, middle and coronal thirds; location of the apical foramen; distance from the pulp chamber roof to the bifurcation and trifurcation of the canals and anatomic variations of the root canal system. The results were expressed descriptively. RESULTS: The cross-sectional shape of canals was heterogeneous along the length of the roots. The location of the apical foramen varied, tending to lie palatally or distally. The buccal pulp horn was larger than the palatal. The mean distance from the most cervical region of the pulp chamber roof to the bifurcation and trifurcation of the canals was 3.13 and 5.08mm, respectively. CONCLUSIONS: Features of the internal anatomy of the pulp cavity of three-rooted maxillary premolars were identified with the use of μCT. The results revealed the heterogeneity of three-rooted maxillary premolars.
URI: http://hdl.handle.net/10923/868
DOI: 10.1111/j.1365-2591.2010.01787.x
PMID: 20812945
ISSN: 0143-2885
Aparece nas Coleções:Artigo de Periódico

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