Comparative sem evaluation by of three solvents used in endodontic retreatment: an ex vivo study
J. appl. oral sci
; J. appl. oral sci;16(1): 24-29, Jan.-Feb. 2008. ilus, tab
Article
em En
| LILACS
| ID: lil-472685
Biblioteca responsável:
BR1.1
ABSTRACT
This study compared, by scanning electron microscopy (SEM), the efficacy of three solvents on the removal of filling materials from dentinal tubules during endodontic retreatment. Forty human maxillary canines with straight canals were prepared according to a crown-down technique and enlarged to a#30 apical file size, before obturation with gutta-percha and a zinc-oxide-eugenol based sealer. The samples were stored for 3 months before being randomly assigned to four groups chloroform (n=10), orange oil (n=10), eucalyptol (n=10) and control (n=10). Solvents were applied to a reservoir created on the coronal root third using Gates Glidden drills. The total time for retreatment using the solvents was 5 minutes per tooth. Following retreatment the roots were split longitudinally for SEM evaluation. SEM images were digitized, analyzed using Image ProPlus 4.5 software, and the number of dentinal tubules free of filling material from the middle and apical thirds was recorded. No significant difference was found among the solvent groups regarding the number of dentinal tubules free of root filling remnants in the middle and apical root thirds (p>0.05). However, the control group had fewer dentinal tubules free of filling material (p<0.05). Under the tested conditions, it may be concluded that there was no significant difference among the solvents used to obtain dentinal tubules free of filling material remnants.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
LILACS
Assunto principal:
Irrigantes do Canal Radicular
/
Solventes
/
Preparo de Canal Radicular
/
Cavidade Pulpar
Tipo de estudo:
Clinical_trials
Limite:
Humans
Idioma:
En
Revista:
J. appl. oral sci
Assunto da revista:
ODONTOLOGIA
Ano de publicação:
2008
Tipo de documento:
Article
/
Project document
País de afiliação:
Brasil
/
Canadá
País de publicação:
Brasil