Apical and cervical displacement produced by hand and engine-driven stainless steel and nickel-titanium instruments in simulated curved root canal
Braz. j. oral sci
;
10(2): 136-139, Apr.-June 2011. ilus, tab
Artigo
em Inglês
| LILACS, BBO
| ID: lil-599388
ABSTRACT
The purpose of this study was evaluate the occurrence of displacement on the apical and cervical thirds of artificial curved root canals with 30° of curvature, comparing the use of stainless steel hand and oscillatory files with nickel-titanium (NI-TI) hand, rotary and oscillatory files. Methods:
Seventy artificial curved root canals were divided into 7 groups (n=10). All canals were prepared with sizes 15to 40 instruments at the working length according to a crown-down technique. The amount of material removed in the curved portion of the simulated canals at2 mm level outside and 11 mm inside was measured. Data were analyzed statistically by ANOVA and Tukeys test (p<0.05).Results:
There was statistically significant differences (p<0.05) at 2 mm level between NI-TI and steel stainless groups. At 11 mm, statistically significant differences (p<0.05) were observed between the groups that used rotary systems (5 and 6) and the remaining groups.Conclusions:
The most centered preparations were those belonging to groups 5 and 6, at both levels. Root canal preparation with NI-TI files yielded better results than the stainless steel files especially when mechanically activated.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Cavidade Pulpar
/
Endodontia
Idioma:
Inglês
Revista:
Braz. j. oral sci
Assunto da revista:
Odontologia
Ano de publicação:
2011
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Federal University of Triângulo Mineiro/BR
/
University of Uberaba/BR
Similares
MEDLINE
...
LILACS
LIS