Root-canal morphology of mandibular premolars: an in vitro study
Abstract
The aim of this in vitro work was to compare the
detection rate of canals in 100 human mandibular premolars
by four different methods: radiographic, naked
eye, under a microscope and clearing. A secondary aim
was to analyze the frequency of anatomical multiplicities
of the observed canals. There was no significant difference
in the detection rate among the 4 methods
(Kruskal-Wallis test). The highest incidence was of a
single canal, 52% in first premolars and 86% in seconds.
The presence of 3 canals was observed in 6% of the
first premolars. There was a significant difference (Mann-
Whitney – p<0,0001) in multiple canals presence in the
first premolars in relation to the seconds.
detection rate of canals in 100 human mandibular premolars
by four different methods: radiographic, naked
eye, under a microscope and clearing. A secondary aim
was to analyze the frequency of anatomical multiplicities
of the observed canals. There was no significant difference
in the detection rate among the 4 methods
(Kruskal-Wallis test). The highest incidence was of a
single canal, 52% in first premolars and 86% in seconds.
The presence of 3 canals was observed in 6% of the
first premolars. There was a significant difference (Mann-
Whitney – p<0,0001) in multiple canals presence in the
first premolars in relation to the seconds.
Keywords
anatomia interna; pré-molar inferior;microscópio operatório clínico; diafanização.
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PDF (Português (Brasil))DOI: http://dx.doi.org/10.18363/rbo.v65n2.p.202
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