Efficacy of NiTi rotary instruments in removing calcium hydroxide dressing residues from root canal walls
Braz. oral res
;
26(1): 19-23, Jan.-Feb. 2012. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-622920
ABSTRACT
The aim of this study was to evaluate the efficacy of three rotary instrument systems (K3, ProTaper and Twisted File) in removing calcium hydroxide residues from root canal walls. Thirty-four human mandibular incisors were instrumented with the ProTaper System up to the F2 instrument, irrigated with 2.5% NaOCl followed by 17% EDTA, and filled with a calcium hydroxide intracanal dressing. After 7 days, the calcium hydroxide dressing was removed using the following rotary instruments: G1 - NiTi size 25, 0.06 taper, of the K3 System; G2 - NiTi F2, of the ProTaper System; or G3 - NiTi size 25, 0.06 taper, of the Twisted File System. The teeth were longitudinally grooved on the buccal and lingual root surfaces, split along their long axis, and their apical and cervical canal thirds were evaluated by SEM (×1000). The images were scored and the data were statistically analyzed using the Kruskall Wallis test. None of the instruments removed the calcium hydroxide dressing completely, either in the apical or cervical thirds, and no significant differences were observed among the rotary instruments tested (p > 0.05).
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Cimentos Ósseos
/
Hidróxido de Cálcio
/
Preparo de Canal Radicular
/
Cavidade Pulpar
Limite:
Humanos
Idioma:
Inglês
Revista:
Braz. oral res
Assunto da revista:
Odontologia
Ano de publicação:
2012
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Unesp/BR
/
Universidade Federal do Rio Grande do Sul/BR
/
Universidade de São Paulo/BR
Similares
MEDLINE
...
LILACS
LIS