Análise multidimensional do preparo de canais radiculares curvos com instrumentos de níquel-titânio em rotação contínua e reciprocante
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Data
2016-11-18
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Universidade Federal de Goiás
Resumo
Objective: To evaluate transportation (T) and centering ability (CA) of root canal preparations
using continuous or reciprocating nickel-titanium endodontic files. Material and methods:
Ninety-six mesiobuccal root canals of mandibular first and second molars were randomly divide
into 6 groups (n=16) according to the rotary file used: Group 1- ProTaper Next®; Group 2-
ProTaper Gold®; Group 3- Mtwo®; Group 4- BioRaCe®; Group 5- WaveOne Gold®; Group 6-
Reciproc®. Root canals were prepared according to manufacturer’s instructions. Cone-beam
computed tomography scans were obtained before and after canal preparation. Measurements were
made at five different points: 2, 3 and 4 mm from the apex and 2, 3 and 4 mm below furcation.
Transportation and centering ability were analyzed following the recommendations made by
Gambill et al. (1996). Results: The greatest mesiodistal (MD) transportation (T) was found for
Reciproc® files (p<0.05), and the greatest buccolingual (BL) T, for Reciproc®, ProTaper Gold®
and ProTaper Next® files (p<0.05). The greatest mesiodistal (MD) centering ability (CA) was
found for BioRaCe® files (p<0.05), and the greatest buccolingual (BL) CA, for BioRaCe® and
Mtwo® files (p<0.05). Conclusion: All systems produced root canal transportation. No file system
achieved perfect CA of root preparation. Reciproc® files had the greatest MD T and BL T.
BioRaCe® files had the greatest MD CA, whereas BL CA was similar for BioRaCe® and Mtwo®
files.
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MAMEDE NETO, I. Análise multidimensional do preparo de canais radiculares curvos com instrumentos de níquel-titânio em rotação contínua e reciprocante. 2016. 109 f. Tese (Doutorado em Ciências da Saúde) - Universidade Federal de Goiás, Goiânia, 2016.