Avaliação qualitativa do preparo de canais radiculares realizado “in vitro” com instrumentos rotatórios de níquel - titânio RaCe e K3
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Data
2010
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Resumo
The aim of this study was to analyze the taper and regulari-
ty of root canals prepared with rotary nickel-titanium system
Race ® and K3 ® , using angle reducer Dentflex ® . The experiment
involved mesial canals of thirty human molars, upper and lo-
wer were randomly assigned to two groups of fifteen, according
to the two types of rotary instruments: RaCe ® and K3 ® . Since
then, there was casting of root canals, to then subject the teeth
to demineralization in 35% hydrochloric acid, thereby obtaining
the same mold. These patterns were analyzed, where there was
a taper and regularity of root canals prepared. The data were tabulated and analyzed statistically by the Mann-Whitney and
Chi-square. The results indicate the predominance of regular
conical forms, in all thirds (cervical, middle, apical) in mesial
buccal and mesial lingual and palatine canals prepared with
Race ® and K3 ® , but statistically significant difference between
the number of occurrence of irregular cylindrical shape along
the lines of mesiobuccal canals below, prepared with RaCe ® .
Descrição
Palavras-chave
Preparo do canal radicular, Modelagem, Instrumentos de níquel-titânio, Preparo biomecânico, Root canal preparation, Modeling, Nickel-titanium instruments, Biomechanical
Citação
CARVALHO, Lúcia M. Avaliação qualitativa do preparo de canais radiculares realizado “in vitro” com instrumentos rotatórios de níquel - titânio RaCe e K3. Robrac: revista odontologica do Brasil Central, Goiânia, v. 19, n. 49, p. 132-147, 2010.