Influência de instrumentos de níquel-titânio na qualidade tridimensional da modelagem radicular em molares superiores e inferiores
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Data
2006
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Resumo
The aim of the present study was to analyze the quality of the internal morphology of the root canals of
maxillary molars, subsequent to the cleaning and shaping with nickel-titanium instruments with
continuous rotation. Forty maxillary molar human teeth, were distributed on the basis of different types of
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endodontic instruments: K 3 , ProTaper, ProFile e K-FlexoFile (control). The molding of the prepared root
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canals was carried out with Aquasil ULV impression material. The teeth were submitted to
demineralization with chloridric acid at 35%. For the verification of the quality of the internal morphology
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three examiners analyzed the moldings. The technique used with ProTaper instruments showed a
preparation with greater regularity index, considering the three thirds of the root canal. In maxillary molars
it was observed 94,30% of regular conic form; in mandibular molar were verified surface with conic
regular form in 86,95% of samples. K 3 and Protaper showed a preparation with greater regularity index.
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Palavras-chave
Instrumentos de níquel-titânio, Preparo biomecânico, Preparo do canal radicular, Modelagem, Instrumentação do canal radicular, Nickel-titanium instruments, Root canal preparation, Cleaning and shaping
Citação
MAMEDE NETO, Iussif; RANGEL, Andrea Leão; ESTRELA, Carlos. Influência de instrumentos de níquel-titânio na qualidade tridimensional da modelagem radicular em molares superiores e inferiores. Robrac: revista odontologica do Brasil Central: Goiânia, v. 15, n. 39, p. 66-76, 2006.